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Cheaper isn’t always better.

Cheaper isn’t always better.

Pills, foams, and messy topicals can cause irritation or stop working once you quit. Kiierr offers a smarter, science-backed solution that fits easily into your routine. No side effects, no daily hassle, just real results.

The best treatment is natural.

The best treatment is natural.

No pills, no hormones, and no invasive procedures. Kiierr uses red light to boost blood flow and energize your follicles, helping them absorb nutrients and grow stronger, healthier hair over time.

Real solutions have guarantees.

Real solutions have guarantees.

Most hair loss products make big promises but leave you with no safety net. Kiierr is different. We offer a 100% money back guarantee because real solutions should come with real accountability.

Hard to Believe? See for Yourself.

Hard to Believe?
See for Yourself.

Photos don’t lie. Our users saw results in as little as 6-8 weeks!

It’s a worthwhile investment!

I started using my Kiierr cap almost 4 years ago at 63. After the first 6 months or so, I noticed that there was less hair caught by my shower drain strainer than in the past. My temples and the thinning hair on my crown have filled in.


My hair is thicker than it’s ever been!

I suffer from hormone-related hair loss. It was devastating to see my hair become thinner & thinner. I have been using Kiierr for 10 months now. At first I was skeptical (was this too good to be true?), but I was astounded when I started seeing growth after 6 weeks!


My hair is a lot thicker!

Thicker hair on my crown has been the most noticeable change since starting with Kiierr. Over the last several months, my hair has visibly thickened, especially in areas that were previously thinning.


It’s a worthwhile investment!

I started using my Kiierr cap almost 4 years ago at 63. After the first 6 months or so, I noticed that there was less hair caught by my shower drain strainer than in the past. My temples and the thinning hair on my crown have filled in.


My hair is thicker than it’s ever been!

I suffer from hormone-related hair loss. It was devastating to see my hair become thinner & thinner. I have been using Kiierr for 10 months now. At first I was skeptical (was this too good to be true?), but I was astounded when I started seeing growth after 6 weeks!


My hair is a lot thicker!

Thicker hair on my crown has been the most noticeable change since starting with Kiierr. Over the last several months, my hair has visibly thickened, especially in areas that were previously thinning.


My hair is thicker and fuller!

After contracting COVID, I experienced severe hair loss. I tried the Kiierr Laser Cap and after 5-6 weeks, new hair began growing on my bald spots. By two months, my hair became thicker and fuller. After three and a half months, I was thrilled with the results and highly recommend!


Nothing worked until Kiierr!

After spending 10 years trying other hair growth products, I heard about the success of laser therapy after researching. As you can see, during the 3 year process of using the Kiierr Hat, I could see remarkable results after only 6 months.


The Kiierr Cap really helped!

I’ve always had thin hair in the crown but 3 months after having Covid, my hair started coming out in handfuls. The Kiierr cap was what helped along with Kiierr’s shampoo, conditioner and biotin.


My hair is thicker and fuller!

After contracting COVID, I experienced severe hair loss. I tried the Kiierr Laser Cap and after 5-6 weeks, new hair began growing on my bald spots. By two months, my hair became thicker and fuller. After three and a half months, I was thrilled with the results and highly recommend!


Nothing worked until Kiierr!

After spending 10 years trying other hair growth products, I heard about the success of laser therapy after researching. As you can see, during the 3 year process of using the Kiierr Hat, I could see remarkable results after only 6 months.


The Kiierr Cap really helped!

I’ve always had thin hair in the crown but 3 months after having Covid, my hair started coming out in handfuls. The Kiierr cap was what helped along with Kiierr’s shampoo, conditioner and biotin.


Recommended by my doctor!

I suffered from a mold exposure that caused excessive hair loss, and this treatment was recommended by my doctor. With continued use of the cap, the vascularity of my scalp has improved. The cap has helped significantly in promoting new hair growth.


Reversed my menopause thinning!

Noticeable menopause thinning led me to try Kiierr’s hair cap. After using it consistently three times a week for several months, I began to see real results. My hair started growing back. Even my friends & hair stylist noticed the improvement!


I love my Kiierr cap!

I use it faithfully and have really seen a difference in my hairline. It was receding on the sides, temples and front, but has definitely stopped and is actually filling in with hair! I would definitely recommend a Kiierr Cap


Recommended by my doctor!

I suffered from a mold exposure that caused excessive hair loss, and this treatment was recommended by my doctor. With continued use of the cap, the vascularity of my scalp has improved. The cap has helped significantly in promoting new hair growth.


Reversed my menopause thinning!

Noticeable menopause thinning led me to try Kiierr’s hair cap. After using it consistently three times a week for several months, I began to see real results. My hair started growing back. Even my friends & hair stylist noticed the improvement!


I love my Kiierr cap!

I use it faithfully and have really seen a difference in my hairline. It was receding on the sides, temples and front, but has definitely stopped and is actually filling in with hair! I would definitely recommend a Kiierr Cap


Kiierr saved my hair!

At 65, my hair started falling and I was nearly bald. I didn’t want a transplant and couldn’t see a doctor during COVID. I tried Kiierr, and it truly helped. Thickened my hair and stopped the loss. I recommend it to everyone facing hair loss.


This cap made me look younger!

After 5 months of using the Kiierr Laser Cap, my hair is fuller, and I feel years younger. I was skeptical at first, but after speaking with their helpful team, I decided to try it. To my surprise, it really works! Plus, their customer service is fantastic. Highly recommend!


Significant hair growth!

I have been using the Kiierr Hair Restoration Cap for the past 18 months. I have received significant hair growth. Attached are my before and after photos showing the hair growth. I highly recommend the Kiierr Cap.


Kiierr saved my hair!

At 65, my hair started falling and I was nearly bald. I didn’t want a transplant and couldn’t see a doctor during COVID. I tried Kiierr, and it truly helped. Thickened my hair and stopped the loss. I recommend it to everyone facing hair loss.


This cap made me look younger!

After 5 months of using the Kiierr Laser Cap, my hair is fuller, and I feel years younger. I was skeptical at first, but after speaking with their helpful team, I decided to try it. To my surprise, it really works! Plus, their customer service is fantastic. Highly recommend!


Significant hair growth!

I have been using the Kiierr Hair Restoration Cap for the past 18 months. I have received significant hair growth. Attached are my before and after photos showing the hair growth. I highly recommend the Kiierr Cap.


It’s a game-changer for my hair loss

Easy to use cap which I have been using for about 5 years now, every other day. My hair strands have become thicker & have less shedding. I would definitely recommend the Kiierr cap, especially due to the scientific backup.


Highly recommend all Kiierr products!

The laser cap definitely helped regrow hair over the balding spot on the crown of my head and on my thinning/receding front hairline! I also use the Kiierr shampoo, conditioner and vitamins. I highly recommend all Kiierr products!


Amazing for male pattern baldness!

I highly recommend this product to anyone with hair loss. Male pattern baldness started in my 20s with a receding hairline and thinning crown. I have seen awesome results with red light therapy and it was worth every penny.


It’s a game-changer for my hair loss

Easy to use cap which I have been using for about 5 years now, every other day. My hair strands have become thicker & have less shedding. I would definitely recommend the Kiierr cap, especially due to the scientific backup.


Highly recommend all Kiierr products!

The laser cap definitely helped regrow hair over the balding spot on the crown of my head and on my thinning/receding front hairline! I also use the Kiierr shampoo, conditioner and vitamins. I highly recommend all Kiierr products!


Amazing for male pattern baldness!

I highly recommend this product to anyone with hair loss. Male pattern baldness started in my 20s with a receding hairline and thinning crown. I have seen awesome results with red light therapy and it was worth every penny.


It really does work!

After using the Kiierr laser cap, I have regrown a large amount of hair. I am so happy with my results and plan to continue use forever! If you are considering Kiierr, I definitely recommend it. It really does work.


The Kiierr cap really worked for me!

I purchased the Kiierr cap 4 years ago. I was losing a great amount of hair every time I shampooed. The cap really worked for me. I recently went to my dermatologist and mentioned the cap & he said that “good laser caps really do work!”


Noticeable hair growth with Kiierr!

I was skeptical at first, but after weeks of using the Kiierr Laser Cap, my hair became thicker, and new growth was visible. I’m convinced it works and will keep using it to maintain my results. Thank you, Kiierr!


It’s a game-changer for my hair loss

After contracting COVID, I experienced severe hair loss. I tried the Kiierr Laser Cap and after 5-6 weeks, new hair began growing on my bald spots. By two months, my hair became thicker and fuller. After three and a half months, I was thrilled with the results and highly recommend!


This cap made me look younger!

After 5 months of using the Kiierr Laser Cap, my hair is fuller, and I feel years younger. I was skeptical at first, but after speaking with their helpful team, I decided to try it. To my surprise, it really works! Plus, their customer service is fantastic. Highly recommend!


Noticeable hair growth with Kiierr!

I was skeptical at first, but after weeks of using the Kiierr Laser Cap, my hair became thicker, and new growth was visible. I’m convinced it works and will keep using it to maintain my results. Thank you, Kiierr!


It’s a worthwhile investment!

I started using my Kiierr cap almost 4 years ago at 63. After the first 6 months or so, I noticed that there was less hair caught by my shower drain strainer than in the past. My temples and the thinning hair on my crown have filled in.


My hair is thicker than it’s ever been!

I suffer from hormone-related hair loss. It was devastating to see my hair become thinner & thinner. I have been using Kiierr for 10 months now. At first I was skeptical (was this too good to be true?), but I was astounded when I started seeing growth after 6 weeks!


My hair is a lot thicker!

Thicker hair on my crown has been the most noticeable change since starting with Kiierr. Over the last several months, my hair has visibly thickened, especially in areas that were previously thinning.


My hair is thicker and fuller!

After contracting COVID, I experienced severe hair loss. I tried the Kiierr Laser Cap and after 5-6 weeks, new hair began growing on my bald spots. By two months, my hair became thicker and fuller. After three and a half months, I was thrilled with the results and highly recommend!


Nothing worked until Kiierr!

After spending 10 years trying other hair growth products, I heard about the success of laser therapy after researching. As you can see, during the 3 year process of using the Kiierr Hat, I could see remarkable results after only 6 months.


The Kiierr Cap really helped!

I’ve always had thin hair in the crown but 3 months after having Covid, my hair started coming out in handfuls. The Kiierr cap was what helped along with Kiierr’s shampoo, conditioner and biotin.


Recommended by my doctor!

I suffered from a mold exposure that caused excessive hair loss, and this treatment was recommended by my doctor. With continued use of the cap, the vascularity of my scalp has improved. The cap has helped significantly in promoting new hair growth.


Reversed my menopause thinning!

Noticeable menopause thinning led me to try Kiierr’s hair cap. After using it consistently three times a week for several months, I began to see real results. My hair started growing back. Even my friends & hair stylist noticed the improvement!


I love my Kiierr cap!

I use it faithfully and have really seen a difference in my hairline. It was receding on the sides, temples and front, but has definitely stopped and is actually filling in with hair! I would definitely recommend a Kiierr Cap


Kiierr saved my hair!

At 65, my hair started falling and I was nearly bald. I didn’t want a transplant and couldn’t see a doctor during COVID. I tried Kiierr, and it truly helped. Thickened my hair and stopped the loss. I recommend it to everyone facing hair loss.


This cap made me look younger!

After 5 months of using the Kiierr Laser Cap, my hair is fuller, and I feel years younger. I was skeptical at first, but after speaking with their helpful team, I decided to try it. To my surprise, it really works! Plus, their customer service is fantastic. Highly recommend!


Significant hair growth!

I have been using the Kiierr Hair Restoration Cap for the past 18 months. I have received significant hair growth. Attached are my before and after photos showing the hair growth. I highly recommend the Kiierr Cap.


It’s a game-changer for my hair loss

Easy to use cap which I have been using for about 5 years now, every other day. My hair strands have become thicker & have less shedding. I would definitely recommend the Kiierr cap, especially due to the scientific backup.


Highly recommend all Kiierr products!

The laser cap definitely helped regrow hair over the balding spot on the crown of my head and on my thinning/receding front hairline! I also use the Kiierr shampoo, conditioner and vitamins. I highly recommend all Kiierr products!


Amazing for male pattern baldness!

I highly recommend this product to anyone with hair loss. Male pattern baldness started in my 20s with a receding hairline and thinning crown. I have seen awesome results with red light therapy and it was worth every penny.


It really does work!

After using the Kiierr laser cap, I have regrown a large amount of hair. I am so happy with my results and plan to continue use forever! If you are considering Kiierr, I definitely recommend it. It really does work.


The Kiierr cap really worked for me!

I purchased the Kiierr cap 4 years ago. I was losing a great amount of hair every time I shampooed. The cap really worked for me. I recently went to my dermatologist and mentioned the cap & he said that “good laser caps really do work!”


Noticeable hair growth with Kiierr!

I was skeptical at first, but after weeks of using the Kiierr Laser Cap, my hair became thicker, and new growth was visible. I’m convinced it works and will keep using it to maintain my results. Thank you, Kiierr!


Still not Convinced? Let’s answer some questions.

Still not Convinced?
Let’s answer some questions.

We’ve got real answers, backed by science and results.

Red light sends safe, low-level laser energy into your scalp to help wake up hair follicles. It improves blood flow and gives your hair roots more oxygen and nutrients — like fuel for healthy growth. It’s been studied for years and is FDA-cleared for hair regrowth when used consistently.

Pills can come with side effects. Surgery is expensive and invasive. Kiierr is different. It uses your body’s natural biology to encourage regrowth without chemicals or harsh procedures. No prescriptions, no downtime, and no risky hormones.

Some users notice early improvements in as little as 6 to 8 weeks. For most, fuller, thicker growth becomes visible around 3 to 4 months, with continued progress the longer you stick with it. The key? Stay consistent, because real results take root over time.

We’re confident it will but if you give Kiierr a fair shot and still don’t see results, you’re covered. With our Growth Guarantee, if you use the cap as directed and take simple monthly progress photos, we’ll refund you after 7 months if your hair hasn’t improved. No fine print. Just a company that stands behind its technology.


Still not Convinced? Let’s answer some questions.

Still not Convinced?
Let’s answer some questions.

We’ve got real answers, backed by science and results.

Red light sends safe, low-level laser energy into your scalp to help wake up hair follicles. It improves blood flow and gives your hair roots more oxygen and nutrients — like fuel for healthy growth. It’s been studied for years and is FDA-cleared for hair regrowth when used consistently.

Pills can come with side effects. Surgery is expensive and invasive. Kiierr is different. It uses your body’s natural biology to encourage regrowth without chemicals or harsh procedures. No prescriptions, no downtime, and no risky hormones.

Some users notice early improvements in as little as 6 to 8 weeks. For most, fuller, thicker growth becomes visible around 3 to 4 months, with continued progress the longer you stick with it. The key? Stay consistent, because real results take root over time.

We’re confident it will but if you give Kiierr a fair shot and still don’t see results, you’re covered. With our Growth Guarantee, if you use the cap as directed and take simple monthly progress photos, we’ll refund you after 7 months if your hair hasn’t improved. No fine print. Just a company that stands behind its technology.

We’re So Confident You’ll Regrow Hair, That We’ll Give You 7 Full Months
to Try the Kiierr Laser Cap Completely Risk Free!

We’re So Confident You’ll Regrow Hair, That We’ll Give You 7 Full Months to Try the Kiierr Laser Cap Completely Risk Free!

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4.9 | Over 100,000+ Customers

#1 Best-Selling Laser Cap for
8 Years and Counting

#1 Best-Selling Laser Cap for 8 Years and Counting

The Kiierr 272 Premier uses medical grade PureLaser™ technology to regrow hair. No surgery, no pain, just real and lasting results.

The Kiierr 272 Premier delivers powerful, medical grade laser therapy with our exclusive PureLaser™ technology for proven hair regrowth at home.

Order in the Next 7 hours & Receive FREE Hair Growth Comb

272 Premier Laser Cap

Plus FREE Kiierr Restore: 4-in-1 Advanced Hair Growth Comb

Original price was: $1,599.00.Current price is: $1,199.00.

Offer Ends Today!

Order in 8h 6m to get it by Wed, Nov 12 More Info

The Kiierr 272 Premier Laser Cap includes everything you need to start regrowing hair at home: • Medical grade laser cap with 272 real lasers (no LEDs) • Rechargeable portable battery + charger • Comfortable ball cap-style cover • Carrying case • User manual Cap fits head sizes up to 23.5" in circumference. However, it does not need to be an exact fit & can be worn higher on the scalp. Use just 30 minutes every other day. Designed for men and women experiencing hair thinning and hair loss.
The 272 Premier uses 272 medical grade 650nm laser diodes. Laser therapy works by delivering precise wavelengths of red light directly to your scalp. These wavelengths penetrate the skin & energize your cells, improving blood flow and boosting oxygen and nutrient delivery to your hair follicles. With consistent use, most people begin to see less shedding in the first 1–2 months & visible regrowth in 3– 7months.
7-Month Growth Guarantee: Use your laser cap consistently for 210 days. If no growth is seen, return it within 210-240 days for a refund (25% fee, waived if 7 month photo documentation is provided). Registration with a before photo is required within 45 days of receiving the cap. Read Full Return Policy Warranty: Kiierr laser caps come with a 2-year warranty, which covers any defects or failures. Shipping: Orders normally process within 2-3 business days and are shipped with 2-Day Shipping via USPS Priority or FedEx. Shipping within the US is free. We ship to all countries and international shipping is $55 USD (plus customs fees charged by FedEx)

Real Results Start
With 3 Easy Steps

Real Results Start With 3 Easy Steps

Effortless to use and easy to fit into your routine.

When Does It Start Working? Here’s What To Expect

Most users notice early changes in just a few weeks.

This is the beginning of the process. You may notice less shedding, and your scalp could start feeling healthier overall. While you won’t see new growth just yet, the red light is working under the surface to stimulate your hair follicles and improve circulation. These subtle changes are the first step toward real, lasting results.

At this stage, many users begin to notice small improvements. Your hair might feel stronger, and thinning areas could appear slightly fuller. The cap is helping to wake up weak follicles and support new growth. You’re building momentum & consistency is everything.

This is when new growth may start to show. Tiny baby hairs could become visible around the temples or hairline. Existing hair may look thicker, healthier, and more resilient. This is often the turning point, a sign that your routine is paying off. Keep using the cap regularly to keep the results moving forward.

Many users see fuller, healthier hair by this point, but not everyone will notice big changes right away. For some, results take longer and may not become visible until 6 to 7 months in. That’s normal. Hair growth is gradual and with consistent use, real progress almost always follows. Patience and consistency pay off.

During this phase, you can expect about 10% recovery as the initial steps of hair regrowth begin. This stage often focuses on stabilizing hair loss, with noticeable reduction in shedding for most users. Results during this time will vary depending on the degree of hair loss you started with, as those with less advanced hair loss may see quicker signs of improvement.

By this point, you may notice up to 20% recovery, with subtle regrowth and thicker, healthier-looking hair becoming more apparent. Shedding should have significantly reduced, if not stopped completely, as the follicles respond to treatment. Keep in mind that individuals with more severe hair loss may experience slower progress during this phase.

Hair regrowth continues with up to 30% recovery, as new hair begins to fill in thinning areas and existing strands become stronger. Results at this stage depend on the severity of your initial hair loss, with those in the early stages of thinning likely seeing more visible changes compared to individuals with extensive hair loss.

Significant progress occurs beyond this stage, with up to 90% recovery for many users as new growth becomes fuller and more consistent. This phase is where the most noticeable improvements happen, but the timeline will vary based on your unique hair loss pattern and response to treatment.

When Does It Start Working?
Here’s What To Expect

This is the beginning of the process. You may notice less shedding, and your scalp could start feeling healthier overall. While you won’t see new growth just yet, the red light is working under the surface to stimulate your hair follicles and improve circulation. These subtle changes are the first step toward real, lasting results.

At this stage, many users begin to notice small improvements. Your hair might feel stronger, and thinning areas could appear slightly fuller. The cap is helping to wake up weak follicles and support new growth. You’re building momentum & consistency is everything.

This is when new growth may start to show. Tiny baby hairs could become visible around the temples or hairline. Existing hair may look thicker, healthier, and more resilient. This is often the turning point, a sign that your routine is paying off. Keep using the cap regularly to keep the results moving forward.

Many users see fuller, healthier hair by this point, but not everyone will notice big changes right away. For some, results take longer and may not become visible until 6 to 7 months in. That’s normal. Hair growth is gradual and with consistent use, real progress almost always follows. Patience and consistency pay off.

No surgeries| No side effects| No pills| No surgeries| No side effects| No pills| No surgeries| No side effects| No pills|

Common Questions About Kiierr

Common Questions
About Kiierr

Yes, and it’s worked for over 100,000 people already. Kiierr uses medical grade low-level laser therapy (LLLT) to target the root cause of hair loss: weakened, inactive hair follicles. These lasers boost blood flow, energize the cells in your scalp, and help reactivate those follicles so they can grow hair again.

All without ever cutting into your scalp or moving hairs from one place to another. It’s real science, backed by clinical studies, and you can do it from your home!

Because hair loss only gets worse the longer you wait. Starting now gives those follicles a chance to bounce back before they shut down completely. The earlier you start, the better your results. Kiierr is your opportunity to act now and stay ahead without ever needing to consider surgery down the line.

Yes and it’s been studied and trusted for decades. Kiierr’s laser caps use FDA cleared, medical grade lasers that deliver light energy directly to your scalp with zero pain and no side effects. There’s no damage to the skin, no heat, no medication, and no downtime. Compare that to a transplant, where you’re looking at a surgical wound, weeks of recovery, and the risk of infection, scarring, or even poor graft survival. With Kiierr, you get results without the risks. It’s gentle, non-invasive, and safe for both men and women.

We offer a 7 month growth guarantee, which gives you plenty of time to use the cap consistently and track your progress. If you don’t see improvement, just send in your monthly photos and we’ll give you a full refund. No tricks, no complicated hoops, just a real promise that we stand behind. Compare that to a hair transplant, where you pay thousands up front and there are no guarantees the results will last. With Kiierr, you have nothing to lose and everything to regrow.

A transplant is surgery. That means needles, scalpels, pain, scarring, long recovery time, and a big bill, often $8,000 to $15,000 or more. It also only moves hair from one spot to another, and if the surrounding follicles keep thinning, you might need more procedures.

Kiierr takes a completely different approach. It helps your existing follicles regrow hair naturally by strengthening them and restoring their function with laser energy. There’s no pain, no downtime, and no disruption to your life. Just 30 minute sessions every other day, right from home. And you keep all your hair, not just the transplanted parts.

Every head is different, but most people notice reduced shedding within 4 to 6 weeks, with fuller, thicker hair starting to appear around 3 to 7 months. That’s about the same timeline as transplant recovery except with Kiierr, there’s no cutting, no healing, no “shock loss,” and no hiding your scalp under a hat for weeks. The key is consistency: 30 minutes every other day, and your results will build over time. It’s a steady, healthy process and way less stressful than surgery.

Absolutely. We know that committing to your hair health is a big step, and we don’t want cost to stand in your way. That’s why we offer affordable payment plans so you can start your treatment now and spread the cost out over time. It’s a fraction of what surgery would cost with none of the stress.

Think of red light therapy like fuel for your hair follicles. The medical grade lasers in the Kiierr cap penetrate your scalp and deliver energy to the cells responsible for hair production. This energy increases blood flow, boosts oxygen and nutrient delivery, and helps revive dormant follicles. It’s like recharging the battery in your scalp, giving your hair what it needs to grow stronger and healthier.

While a transplant replaces lost hair, Kiierr works to restore the hair you already have before it’s gone for good. It’s not just a fix, it’s a long term strategy for hair health.

Will laser therapy work for my type of hair loss?

Absolutely! The great thing about Low-Level Light Therapy (LLLT) is its versatility! Whether you are male or female, 18 or 88, from pattern baldness to hair thinning due to stress or medical conditions like including alopecia areata, hormonal imbalances, telogen effluvium and so much more.

Users of all hair textures and skin tones have seen incredible results, regardless of age. Start your journey to thicker, healthier hair today and see why so many trust Kiierr for their hair growth needs!

We offer 5 laser cap options: 148 Pro, 272 Premier, 272 MD Elite, 302 MD Ultra Flex, and the new 312 MD Dual Flex. The 148 Pro is great for early hair loss or tighter budgets, offering slower but steady results. The 272 Premier is our bestseller, balancing power and value for faster regrowth. For larger heads or wider coverage, go with the 272 MD Elite. The 302 MD Ultra Flex adds a flexible fit and faster results, perfect for more advanced hair loss.

Want the most advanced option available? The 312 MD Dual Flex offers dual wavelengths, deeper penetration, and full scalp coverage in just 6 minutes a day.

Results vary, but most users see noticeable improvements within 6-12 weeks. We’re so confident in our product that we offer a 7-month growth guarantee—if you don’t see results, you can return the cap!

Laser therapy is a safe, non-invasive, and natural way to treat hair loss before considering more drastic measures like medications or surgery.

Choosing Kiierr is like joining a family & community committed to hair recovery. Since 2017, we’ve provided top-quality, medical-grade laser caps with a solid 2-year warranty. With our 7-month growth guarantee, you can trust that we’re as invested in your hair journey as you are.

Our exceptional customer service is always ready to support your journey; real people who genuinely care, ready to guide, support, and celebrate your progress with you.

Yes! We offer flexible payment options through Affirm, Afterpay, and PayPal Pay Later, providing easy monthly installments or delayed full payments to suit your financial situation.

  • Affirm allows you to split your purchase into easy monthly payments with interest rates as low as 0% APR.
  • Afterpay allows you to split your purchase into four equal installments, due every two weeks, no interest or fees. PayPal Pay Later, you can choose to pay in full within 6 months with no interest, or make minimum monthly payments with interest.

Just pick what works for you at checkout!

Yes! Kiierr laser caps are completely safe and FDA-cleared for hair growth. Unlike harsh chemicals or invasive procedures, our caps use low-level laser therapy (LLLT), a clinically proven technology that gently stimulates your hair follicles without pain, irritation, or side effects. LLLT has been backed by decades of research and is trusted by doctors and hair restoration experts. You can use your cap confidently, knowing it’s a safe, non-invasive way to give your hair the boost it needs.

4.9 (2145 reviews)

Bobby T.

A great way to regrow hair without ingesting supplements or using gimmick topical solutions. The ease of use is tremendous and convenient as well. I found it best to pick a consistent time of day to wear the cap every other day and stick with it, so you don't need to worry about forgetting a session. For me it is during lunch break when I know I won't be up and running around. The regrowth was visible and my wife started seeing the results long before I did.

Kent K.

I have been using the Kiierr laser cap for 4 years. Before I started using it I had a really annoying itchy feeling at the crown of my head. Since using Kiierr that itchiness has stopped. In fact when I stopped using it a couple weeks it has returned so I am confident it is from the laser cap. I am sure it has also helped maintain or improve the hair growth on my head as well. Great product.

Stacy J.

I began losing hair after menopause. I was looking for a way to make my hair healthier when I read about the laser cap. I was hesitant about such an expensive purchase, but as you can see from the before and after photos, it made a difference! (The photos are 4 months apart. ) I have been using my cap for 3 1/2 years now.

Kevin K.

I have been using the Kiierr 272 Premium Laser Hat since Oct 2020. I have seen significant hair growth. Others have noticed too, some people even think I've had a hair transplant! I'll definitely keep using the cap and would recommend to others. It is pretty easy every other day while watching TV in the evening!

Rochelle A.

I have been using Kiierr hair growth cap for a few years now consistently. I started getting bald areas along the crown and my hair line. Not sure what was causing it. But after some research I learned that red light therapy was good for follicle stimulation. And in a few weeks I started to see some small growth. So I continued for months and it definitely started to fill in. My part and hair line are no longer see-through and thinned out. I still use the cap every other day- I feel it really helps keep my scalp / hair follicles healthy.

Mick D.

I started using my cap in April 2024. I haven’t taken any other supplements,, just use the laser cap. And as you can see in the pics it helps a lot. I wish I would have started YEARS ago.

Pauline C.

I purchased the Kiieer hair growth laser cap 4 years ago and it is still going strong and maintaining the growth it produced. I was losing a great amount of hair every time I shampooed I hope my before and after pictures convince you to try this product. It really worked for me. I now use it twice a week for maintenance. I recently went to my dermatologist and mentioned the cap and he gave it a thumbs up and said that good laser caps do work.

Martha T.

I've been using my Kiierr MD Laser caps for about 3 years. In 2020 I lost almost all my hair due to Talogen Effluvium. I tried Rogain, pills, and another popular companies laser cap. Nothing. I was stuck in a chronic phase of hair loss. Friends would ask if I was having chemo! Then in 2022 I started using the Kiierr Laser Cap along with the Kiierr supplements and shampoo/conditioner. . . my hair started growing back! Slowly but surely. I still am using my cap and my hair isstill growing. . . slowly but surely! Their customer service is also wonderful!

Faye S.

I received the Kiierr laser cap as a birthday gift in June 2021 when I was 84 years old, and have continued using it ever since. As you can see in my pictures, there was good growth after roughly 1. 5 years, and even more now, almost 4 years later. I have been really pleased with the regrowth, though I do still have very fine hair.

Steve J.

I have been using the Kiierr 272 Premium Laser Hat since Oct 2024. I have already seen tremendous hair growth. I feel the Kiierr hat definitely helps with better blood circulation contributing to hair growth. Worth giving it a try and backed by their guarantee.

Lillian J.

I've had a great experience with Kiierr! The package arrived beautifully and shipping was super fast. I started using the laser cap two years ago, 3–4 times a week for 30 minutes, to address thinning in both corners of my hairline. Over time, I've seen significant hair growth and feel so much more confident. Highly recommend!

John J.

I have received significant hair growth over the past 18 months using my Kiierr hair restoration cap.

Frank L.

I’m a 67 year old male in excellent health and I started using my Kiierr cap almost 4 years ago. After the first 6 months or so, I noticed that there was less hair caught by my shower drain strainer than in the past. This has continued to this day. Over time, my temples and the thinning hair on my crown have filled in somewhat. As a result, I don’t wear a cap nearly as often as I used to which is kind of liberating. The purchase of the Kiierr cap was a very worthwhile investment for me.

Elvira W.

I have been using the laser cap for over 2 years now and have noticed significant improvements in my hair growth. My hair is fuller and thicker, with increased growth at the hairline. I’ve gone through a major life transition in the past few years and the helmet has saved my hair! As a woman in her early 40’s who had long and luscious hair all her life, it was difficult to watch the change in my hair so I knew I had to do something. The Kiierr helmet was just the device I needed! If you’re thinking about it, do not hesitate as it is a great device which is easy to use, and will bring back your hair along with your confidence! I highly recommend it!

Karen C.

I had lost a considerable amount of hair in my late 30’s and early 40’s to the point I was so self conscious I kept my hair super short. I heard about red light therapy helmets from a hair specialist and started my research. I found Kiierr was more affordable and offered natural supplements and hair care products which was in my line of preference. After about six months I started noticing a big difference. I now have been growing my hair out and feel exceptionally more confident in how I look, thanks to Kiierr!

Karen C.

I had lost a considerable amount of hair in my late 30’s and early 40’s to the point I was so self conscious I kept my hair super short. I heard about red light therapy helmets from a hair specialist and started my research. I found Kiierr was more affordable and offered natural supplements and hair care products which was in my line of preference. After about six months I started noticing a big difference. I now have been growing my hair out and feel exceptionally more confident in how I look, thanks to Kiierr!

Vincent R.

Easy to use cap which I have been using for about 5 years now, every other day. My hair strands have become thicker and have less shedding. Would recommend, espcially since the scientifical backup. Kiierr has been quick in responding to my questions, as well as finding suitbable solutions / offers.

Brad S.

I’ve been using the laser cap for 2 years and I’m thrilled with the results. Not only has it stopped my hair loss, I have actually grown more, which has been a shock to me. This device has been a game changer for me. My hair looks and feels thicker. It’s easy to use and fits seamlessly into my routine. I was skeptical at first, but it’s definitely been worth the investment. Highly recommend to anyone struggling with hair loss!

Karen C.

I had lost a considerable amount of hair in my late 30’s and early 40’s to the point I was so self conscious I kept my hair super short. I heard about red light therapy helmets from a hair specialist and started my research. I found Kiierr was more affordable and offered natural supplements and hair care products which was in my line of preference. After about six months I started noticing a big difference. I now have been growing my hair out and feel exceptionally more confident in how I look, thanks to Kiierr!

Penny T.

I have been using the Kiierr Cap for 15 months and have seen a noticeable improvement in the fullness on the crown of my head. There are many new hairs consistently growing in and it has made a huge difference in my self esteem.

Mark R.

I have been using the Kiierr Cap for 15 months and have seen a noticeable improvement in the fullness on the crown of my head. There are many new hairs consistently growing in and it has made a huge difference in my self esteem.

Abby A.

It really does work!
With using the kiierr laser cap I have regrown a large amount of hair. I am so happy with my results and plan to continue use forever!

Karen O.

Noticeable menopause hair thinning brought me to Kiierr's hair cap, after several months of usage 3x a week, I started to notice my hair growing back as did my friends and even hair stylist!

Clayton B.

At 19 my hair began thinning. By 32 I'd lost most of the hair along the hairline. I first tried Rogaine that offered some improvement, but later stopped it and began using Kiierr. My hairline has dramatically improved. I feel the hat has been essential in improving the overall thickness and health of my hair and have been a regular user since 2021! I intend to use the laser hat for the rest of my life and expect it will continue to improve my hair and stop my hair loss!

Samantha G.

After giving birth I experienced a lot of postpartum hair shedding, which was really hard to deal with. It started to take a huge toll on my confidence. That's when I discovered the Kiierr laser cap. I was honestly amazed at how quickly I began to see results. After just a few months I noticed less shedding & even some regrowth in the areas that had thinned out the most. My hair feels fuller, and I can see a visible difference in its thickness. Getting my hair back has been such a huge confidence booster.

Mark R.

Service with customer support has been amazing. Shipping also was very fast! Over the last several months my hair has noticeably thickened

Karen H.

For Christmas 2020, knowing how much my hair loss bothered me, my husband Stan bought me the Kiierr cap. I was diligent about using it as instructed. Within months, my hairdresser noticed the growth of new hair. It grew back thick & healthy.

Danita T.

I have been very pleased with my Kierr Cap, my hair was thinning on top from hormone medication. I started using my cap and my has thickened and grown significantly over the last 2 years. Customer service is great, when I had an issue with the cap functioning they sent me the replacement part needed quickly. I have been pleased.

Austin W.

6 Months Using Kiierr
Works great, would recommend!

Connie K.

I have had my Kiierr Laser Cap for 3 years now & have been very happy with the improvements that have occurred in my hair density. After 8 months of using the cap, the part had narrowed. You can see how filled in it is along the part on top of my head. I am exceedingly pleased! It is worth way more than the price! I will never be without one!

Ronald P.

After spending over 10 years trying "other hair growth products", I heard about the success of using Laser Hats and chose Kiierr. As you can see, during the 3 year process of using the Kiierr Laser Hat, I could see remarkable results after only 6 months. Now, after approximately 3years, I’m enjoying the full benefits that surface with a full head of hair! My hair stylist complimented me along the way as she noticed the improvement in my hair growth. Furthermore, she stated out of all the clients she has with hair loss, I’m the only client she has with such a noticeable difference! I am thrilled I chose Kiierr!

Denise C.

I suffer from hormone related hair loss. It was devastating to see my hair become thinner & thinner. I began researching the laser technology and could not be happier selecting the Kiierr cap. I have been using it for 10 months. At first I was skeptical but I was astounded when I started seeing growth after 6 weeks! Every couple of months, we would take a new picture and the results kept getting better and better. My husband agrees that my hair is thicker than it's ever been. My hairdresser was amazed and plans to recommend it to other clients.

James R.

Ive been using the laser cap for 5 months and it has made a huge difference. The large spot that my scalp was showing is really filling in now. I feel like I look years younger. I was hesitant to purchase cause it seemed like it was too good to be true. But I took a chance on it and to my surprise it definitely did work! Awesome company and awesome product. Im now a believer in laser therapy.

Hess S.

I love my Kiierr cap. It gave me my life back! I also love Kiierr’s customer service.

J. H.

My hair feels thicker, healthier and I’m not seeing as much scalp near my part.

Jeffrey L.

I've been extremely impressed and pleased with my results from using the cap. My hair was thinning on the front and top of my head but has since noticeably filled in from consistently using the cap.