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ratings

4.9/5 based on 100,000+ Happy Customers

Regrow Hair & Stop Thinning with PureLaser™ Technology

  • Visible results in 6 min every day to 30 min every other day

  • Clinically proven to stop loss and boost growth

  • Doctor-endorsed & FDA-cleared for safe use

Restore Your Hair Today!

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Check Out The Impressive Results Others Have Achieved

With consistent use, our customers have experienced thicker, fuller hair and significant hair regrowth.

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How Kiierr Laser Caps Work

No tech skills needed! Just wear the cap and let the FDA-cleared low PureLaser™ Technology stop the loss and regrow your hair, whether you’re at home or on the go.

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Day 30 - 90

Hair Loss Stops

In the first few weeks of using the cap for 6-30 minutes (depending on the laser strength in our caps) every other day, you’ll notice less hair loss as the low-level PureLaser™ Technology wakes up your hair follicles and stops them from shrinking due to Androgenic Alopecia.

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Day 90 - 80

New Hair Starts Growing

As you keep up with your routine, you’ll begin to see new hair filling in where it was once thinning. The laser light increases blood flow and delivers all the nutrients your hair needs to grow stronger and thicker.

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Day 180+

Enjoy Thicker & Healthier Hair

After 7 months of consistent use, you’ll finally see what you’ve been waiting for: thick, full, and strong hair covering the areas that were previously thinning or bare. To maintain these amazing results, keep using the cap regularly.

Join 100K+ Happy People Who’ve Transformed Their Hair

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StarRating
I feel like myself again!

Kiierr's laser cap has been amazing! You can tell the difference in the volume of my hair since starting to use it. I've been using it since 2021. I had tried many other products and this has been the best one. It's definitely worth the purchase.

Maria F.

Verified

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Results are incredible!

Here are pictures of 3-month results. The 1st pic is from 10/02/23 before I started using the cap, and the second pic is from 12/28/23. There are very visible results in just 3 months!

Jenifer D.

Verified

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Seeing a difference especially at temples

I've been using my laser cap faithfully for 4 months and am really starting to see a difference in the fullness of my hair. I have lots of new growth at my temples and my part is beginning to fill back in.

Julia S.

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Good product and service

My experience with the Kiierr cap has been good. I have also purchased many supplemental products including shampoo, conditioner, vitamins, and hair cream many times over since purchasing the laser cap.

Evan N.

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Seemed like it was too good to be true

Ive been using the laser cap for 5 months and it has made a huge difference. I’m getting older and the hair loss made me feel even older than I am. After using the cap I feel like I look years younger. I was hesitant to purchase it because it seemed like it was too good to be true. But I called Kiierr and talked to a very nice and

James R.

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StarRating

4.9/5 based on 100,000+ Happy Customers

Real Results from Real People

We could talk all day about the amazing hair improvements our customers have gone through, but we'd rather let them share their stories.

See visible changes within 6-8 weeks

90%
Noticed reduced hair shedding and a healthier scalp.
88%
Observed that their hair felt noticeably stronger and less prone to breakage.
83%
Saw a great boost in hair volume and density, with new hairs beginning to grow.

Scientifically Proven
LLLT Technology for Hair Regrowth

In 6 to 30 minutes a day (depending on the cap strength), it delivers hair growth results unlike anything you’ve tried before thanks to PureLaser™ Technology.
KiierrCap
Order now and get started on your hair growth journey in just 2-3 days with fast, free shipping.
Treats thinning and balding hair
Promotes healthier, thicker hair follicles
Safe and effective for treating hair loss
Reverses hair loss
Revitalizes damaged /frail hair
Easy, portable and discreet use
PureLaser™ Technology is FDA cleared with no reported side effects

Restore Your Hair Today!

Kiierr Vs The Rest

Learn why Kiierr is the top choice for hair regrowth compared to other brands in the market.

Features

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Others

Used & Recommended by Doctors

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Convenient At Home Use

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7-month Money Back Guarantee

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Clinically Proven

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FDA-Cleared Technology

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PureLaser™ Technology

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HOLIDAY SALE

Kiierr Laser Cap
Starter Kit System

ratings

4.9/5 based on 100,000+ Happy Customers

Kiierr Laser Cap Kit

272 Diodes 272 Premier Cap
$899
148 or 272 Diode Laser Helmet – Fits Most Heads, Up To 23.5 Circumference
$1499 $899
Rechargeable Battery and Charger
free $200
Plain Black Ball Cap
(wear your laser cap anywhere)
free $40
User Manual & FAQ’s Guide
free $30
Total
$1299.00 $899

7 MONTH MONEY BACK GUARANTEE

Kiierr laser caps, powered by our exclusive PureLaser™ technology, utilize only high quality medical grade laser diodes (no LEDs) to deliver precise, effective LLLT at 650 nm for optimal hair regrowth. 

With options of 148, 272, or 302 diodes, and total power outputs of 740 mW, 1,360 mW, and 1,510 mW respectively, Kiierr caps offer targeted stimulation for fuller hair. Simply use the 148 and 272 models for 30 minutes every other day, or the 302 model for 6 minutes daily, and start seeing results in as little as 6–8 weeks, with significant improvements typically visible within 4 to 7 months.

This advanced, FDA-cleared LLLT technology penetrates the scalp to stimulate hair follicles at the cellular level, enhancing blood flow and nutrient delivery to dormant follicles. The result is a revitalized scalp environment that supports natural hair growth cycles, promoting thicker, fuller hair that’s clinically proven to be effective. With over 100,000 satisfied Kiierr customers and a money-back guarantee, there’s no reason to wait. Experience the transformation for yourself and watch your hair thrive!

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. See full policy for details.

Warranty:Kiierr laser caps come with a 2-year warranty, which covers any defects or failures. 

Shipping: Orders ship within 2-3 business days 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)

Read Full Return Policy

Kiierr Laser Cap Kit

Frequently Asked Questions

KiierrCap

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 have 4 laser cap options: 148 Pro, 272 Premier, 272 MD Elite, and 302 MD Ultra Flex. Choosing the right cap depends on your specific needs. For early stages of hair loss or those on a budget who are okay with slower, steadier results, the 148 Pro is ideal. If you’re seeking more significant and quicker regrowth, the 272 Premier is our bestseller.

For larger head sizes or extensive coverage, the 272 MD Elite is perfect. Lastly, the 302 MD Ultra Flex offers the fastest results and superior comfort. Ideal for severe hair loss, this model also offers a soft flex fit for maximum comfort.

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!