Suffering from hair loss doesn’t have to be terrifying. We live in a world full of amazing technology that can help regrow your hair back. One of these technologies is low-level light therapy (LLLT), which has revolutionized the hair growth industry. It has become the number one way to rejuvenate hair follicles on both men and women suffering from hair loss conditions such as alopecia, male/female patterned baldness, etc. 

How Does Low-Level Light Therapy Work? 

LLLT therapy is designed to help hair follicles to produce hair by triggering a number of useful processes. The laser light that is being used produces a particular wavelength of light. This wavelength is chosen because of its ability to be absorbed by the molecules inside hair follicles on the scalp. 

When the light is absorbed by the hair follicle molecules, the light is supposed to trigger the hair follicle to switch into the growth stage. It does this by signaling the stem cells to start regenerating the hair follicles, by boosting mitochondrial activity in the hair follicle cells, and by increasing blood flow which helps deliver more oxygen and nutrients to the hair follicles. 

Scientific studies have been done to test the effectiveness of LLLT for hair regrowth. At least some studies have shown that it is capable of triggering hair regrowth for many people. 

LEDs vs. Medical-Grade Lasers for LLLT 

Many laser cap and hair growth companies use both low-level lasers and light-emitting diodes (LEDs) in their hair growth caps. What many customers aren’t aware of, is that light-emitting diodes don’t produce the same stimulation of hair growth as medical-grade lasers. 

To create enhanced cell function, light energy needs to be below a specific energy threshold and within a specific wavelength. LEDs are typically less effective, because they’re relatively low-powered and don’t fit in between the specific threshold and wavelength that it takes to create this stimulation.

In the past, low-level laser therapy was only allowed in clinics, but it’s now available to attain in the comfort of your own home. While there are many different kinds of laser caps on the market right now, and some may seem great, their laser counts aren’t up to par with others. 

Below is a comparison of the iRestore laser cap vs. the Kiierr laser cap to help you better understand which laser cap company is the best and which has the most potential to help you with hair loss. 

iRestore Laser Helmet Reviews

iRestore Reviews vs. Kiierr

iRestore laser hair growth devices come in a helmet design constructed with a ventilated pattern to allow airflow and breathability. This enables your head to stay cool and comfortable while improving the overall health and strength of your existing hair follicles using LLLT.

iRestore offers two different laser caps. The iRestore Professional costs $1,195 and contains 282 laser diodes and LEDs combined. The second option, the iRestore Essential, costs $695 and contains 120 laser diodes and LEDs combined. iRestore also offers the option of purchasing these laser caps in a bundled system containing different supplements and topical treatments. It’s recommended to use the iRestore laser cap every other day for the best results.

The iRestore Hair Growth System offers a free 1-year warranty with the purchase of your laser cap. If you wish to extend your warranty beyond this one-year mark, you’ll be able to do it for an extra charge. 

This warranty keeps you protected in case there is a malfunction of your device that is out of your control. iRestore also offers a 12-month money-back guarantee. So, if you’re not seeing your desired results continuously after using your laser cap for up to 12-months, you can simply return the iRestore helmet for a full refund. 

**Keep in mind that iRestore laser caps are not portable devices unless you purchase the portable battery pack separately. Otherwise, your laser cap is required to be plugged into an outlet.

Kiierr Laser Cap

Kiierr Laser Cap Info

The Kiierr FDA-cleared laser cap uses low-level laser therapy on the scalps of both men and women to effectively treat hair loss. Kiierr laser caps contain nothing but pure medical-grade laser diodes to provide customers the best possible hair treatment available on the market today. 

Depending on the laser cap, Kiierr offers either 148 or 272 medical-grade laser diodes depending on your hair loss condition. Kiierr uses a ball cap design making your hair loss treatment discreet and hands-free.

Kiierr provides three different laser caps to choose from ranging in price from $595-$1,395, depending on the amount of medical-grade laser diodes they contain. They come in two different sizes providing more comfort. Kiierr’s laser caps are hands-free, portable, pain-free, and chemical-free. They are clinically proven to produce new hair growth on the scalp. They are also designed to strengthen and lengthen existing hair follicles, making them one of the best hair growth treatments available.

Kiierr offers free shipping and a free 2-year warranty. There is a 7-month growth guarantee after your purchase. This guarantees customers hair growth success or your full money back. For optimal hair growth, you can also purchase Kiierr’s hair growth bundle


Kiierr vs. iRestore Reviews

iRestore Reviews vs. Kiierr

Kiierr’s laser hair growth caps are a far superior system. Not only do they offer a higher laser diode cap, but they use only medical-grade laser diodes versus a combination of medical-grade laser diodes and LED lights. The iRestore laser helmet products use LED lights and diodes. LED lights have been proven to be less effective than medical-grade laser diodes. This reason alone is enough to choose Kiierr over the iRestore laser cap. However, that is not the only reason for this recommendation.

Kiierr and iRestore both offer a complete hair growth bundle, but Kiierr has three different laser cap options ranging in laser diodes and price, while iRestore only offers two different caps to choose from. iRestore’s Essential cap uses 51 lasers and LEDs inside their helmet, consisting of 21 medical-grade lasers, and 30 medical-grade LEDs. We are unaware of how the medical-grade lasers and LEDs are split up within this new cap.

iRestore is designed as a helmet. Kiierr uses a ball cap design to help make your hair loss treatment discreet and convenient. You can switch out ball caps to use one of your own. Kiierr also boasts a 93 percent success rate for hair growth in clinical studies on their website. These studies involved people with hair loss using the Kiierr laser hair growth systems to test their effectiveness over time. 

Kiierr has a 7-month money-back growth guarantee. This guarantee states that the customer is eligible for their full money-back if they do not see new hair regrowth in the problematic areas. You must use the cap for a minimum of 7-months and fill out the warranty registration form in order to be considered for the refund. 

You will also receive a two-year product warranty, where if any issues arise, Kiierr will send a new unit absolutely free. iRestore offers a 12-month guarantee, if you’re not seeing desired results after continuous use, you can return your laser cap for a full money refund.


Kiierr vs. iRestore Reviews Conclusion

Kiierr vs. iRestore Reviews

When deciding which route to go in the revitalization of your hair, always do some research and choose what you think is best for you. It is very important to be aware of what kind lasers are used in the devices. As mentioned earlier, medical-grade laser diodes are the most effective when regenerating the hair follicle cells on the scalp. Therefore, Kiierr is the best solution to treat your hair loss when it comes to iRestore versus Kiierr.

Kiierr uses a ball cap design making your hair loss treatment easy and convenient. Not to mention, it’s completely hands-free unlike iRestore. You can use your Kiierr laser cap while running errands, working, shopping, etc.

Kiierr gives you maximum medical-grade laser diodes in their caps that work to penetrate the scalp tissue to encourage new and healthy hair growth. Considering the fact that both companies offer products in relatively the same price range (about $600 – $1400), you get more bang for your buck with Kiierr

With Kiierr, you’ll find yourself fully covered in the free 2-year warranty that comes with your purchase. You can also feel confident and optimistic towards your hair growth results knowing that there is the option of the 7-month growth guarantee, allowing you to receive your full money back if you do not see hair growth results after using the laser device for at-least 7-months.

Given our research and review above, Kiierr is the number one choice when it comes to purchasing an FDA-cleared laser cap for hair growth. Kiierr’s product might be slightly more expensive than various shampoos and other hair loss products on the market, but the full money-back guarantee means that you can get your money back if it doesn’t work. This is a major advantage of the product and means that you can try it out risk-free. 

It is also important to note that just because we think that Kiierr’s laser cap products are the better option, it doesn’t mean that iRestore’s products are also not good. Both companies’ products are based on the same science and technology. So, there is a good chance that the iRestore laser hair growth system products work too. 


Are you still wondering how you should compare laser cap companies to feel comfortable with your upcoming purchase? We have you covered with this next article.

Up next: 5 important things to note about laser caps before you purchase.


Kiierr vs. iRestore FAQs

What is the best laser hair growth product?

The best laser hair growth product is a cap that contains medical grade laser diodes to emit LLLT treatment. The more lasers a cap contains, the more effective treatment will be. Between Kiierr and iRestore, Kiierr has far more laser diodes.

Do lasers really grow hair?

Medical grade laser diodes have been clinically proven to effectively grow hair on the scalps of men and women.

How long does it take for Kiierr to work?

Customers using Kiierr's laser hair growth cap every other day can expect to see results in as little as 4-months.

Do laser hair regrowth helmets work?

Yes. Laser helmets have helped men and women regrow their hair with the help of LLLT treatment therapy. This exciting technology is clinically proven to increase hair growth.