I've been using Kiierr for the last four years know , and I can definitely see a difference of how strong my hair is know vs before . I can even see little baby hair growing up . Highly recommended 👍

I bought my Kiier Laser hat Back in October of 2022 and have used it since. I found that in all that time it has made ny hair more thicker although not a cure for male Patern Baldness. it works really well with Stem Cell replacement too also the People there are good to work with if there is a Problem

Been using the cap for a while now, and it's been a fantastic investment. The device is durable, comfortable, and easy to incorporate into my routine. Pretty effortless task and great results. Highly recommend this to anyone who's starting to lose hair.

I started seeing results in 6 weeks. I was surprised how well it was working because I had tried shampoos and supplements that did nothing. My hair stylist said my hair was looking much better. It's been a couple of years now and the improvement in my hair just keeps getting better. I recommend this cap to anyone with thinning hair.

I do think this kiierr laser cap has helped me quite a lot this past 4-5 yrs I’ve used it after having covid

The first thing I noticed when I started using the Kiierr cap was that my hair fall out had improved significantly. Before, when I would comb my hair in the shower, I would have clumps of hair in the comb. Once I started using the cap that stopped. Next I noticed baby hair growth and my patches started to fill out. I would definitely recommend this to anyone who is having hair growth issues.

The first thing I noticed when I started using the Kiierr cap was that my hair fall out had improved significantly. Before, when I would comb my hair in the shower, I would have clumps of hair in the comb. Once I started using the cap that stopped. Next I noticed baby hair growth and my patches started to fill out. I would definitely recommend this to anyone who is having hair growth issues.

I’m very satisfied Kiierr Hair laser cap that I bought about 4 years ago.

Jennifer Cebrosky Attachments Sat, May 30, 2:01 AM (2 days ago) to me I initially bought the Kiier therapy hat for my mother whose hair was thinning from stress and older age combined with a thyroid issue. Fast forward to 2025 I started having my own problems and noticed my hair thinning rapidly. My ponytail shrunk, I could feel the difference when I ran my fingers through my hair. Then I started seeing the baldness above my right temple and my parts were getting wider. You could even just plainly see through my hair at the ends. So, in September I started using the Kiier cap a few times a week. I was consistent and before you knew it, I started seeing tiny hair growth appear by my temples. I was never so happy to see my hair sticking up. Month by month I noticed more thickness when I would run my fingers through. I could feel exactly where we were with the growth just by feeling my hair, it was amazing. By December you could see the thickness over my crown. Each passing month the growth continued. I'm looking forward to finally growing my hair longer again, thanks Kiierr!

I have been using my Kiierr hat for four years to maintain density and I enjoy the therapeutic value.

I love Kiierr products! I have the cap for stimulating hair growth, the shampoo/conditioner for zero hair shedding, and the shower head is wonderful, softening our crummy well water (even though we have an all home water softening system). A shout out also to Customer Service; twice I received partial shipment of my order and upon contacting Customer Service, Kiierr shipped me a complimentary extra unit at no cost to me. Both times I heard from Customer Service within 24 hours with an email from a guy named Steven who resolved my issue immediately. Best Customer Service EVER.

I’m a middle-aged woman in her early 60’s and I’ve been using my Kiierr cap since 2019, with very good results. After years of losing hair, I finally found something that actually helps. I use it in conjunction with minoxidil and it’s made a huge difference in the health of my hair. My shedding went down tremendously when I started using it consistently every other day on clean hair. Any time I stop my routine, I notice an increase in hair loss after a period of time so I always go back to faithfully sticking with my routine. It’s definitely worth trying as the company offers a money-back guarantee if it hasn’t worked for you after 7 months. Wishing everyone success because I know how frustrating it is when trying to find a solution to hair-loss.

Not only has this company been great to work with I have noticed a definite improvement and the quality of my hair in the last few months using the Kiierr cap. Recently my battery became damaged and swelled up. They instantly replaced it for me and I was delighted.

I started noticing thinning on my part in the front. My hair stylist suggested Rogaine. My hair started to fill in & then I woke up with hair growing across my forehead like a monkey. I stopped the product. Whatever grew fell back out. I resigned myself to thinning hair. In the meantime, I had bought the Kiierr Laser Cap for my husband & he is very pleased. Never thought about it for me until recently after having thyroid surgery & noticed excessive shedding. I began using the Kiierr Laser Cap within less than 2 weeks the shedding improved. Within a month I noticed some growth on my part. (the photo- apologies I do not have a before photo) Our battery stopped working & I can't wait for the new one to arrive to see more growth! I will return with an after photo. Kiierr Laser Cap truly works!! Thank you!

I can honestly say this red light therapy headpiece has been one of the best investments I’ve made for my hair journey. I’ve been using it consistently for several years now and the difference from when I first started to today has been incredible. My hair has grown so much from the roots, feels healthier overall, and I’ve seen such a noticeable improvement in thickness and regrowth over time. What I love most is that this wasn’t an overnight result — it truly came from consistency and trusting the process. I made it a priority to wear it exactly as directed and stay disciplined with it, and the outcome has absolutely been worth it. I still have more growth goals, but seeing the transformation through my progress photos from the beginning until now is honestly amazing. If you’re patient, consistent, and committed, it really does make a difference. I’ve recently added their hair vitamins because you can’t go wrong…. overall I’m impressed, thank you Kiierr!

Hello. I give this product 5 stars because it's super easy to use and has helped me care for my hair. Plus the Support Team at Kiierr is very responsive and helpful. I've been using it for several years and I also referred Kiierr to my aunt who is also using their products. My dermatologist is the one who recommended the helmet to me so I feel it's safe to use and effective.

At 51, I had major hair loss and decided to give Kierr a try. I began to wear my Premier 272 cap for 30 minutes every other day, no matter where I am (the hardshell travel case is great), and I started to see real results in weeks. Four years later, my hair is fuller and healthier than it was 20 years ago. The "before" photo was taken in June 2022. The "after" photo is May 2026.

I can honestly say this red light therapy headpiece has been one of the best investments I’ve made for my hair journey. I’ve been using it consistently for several years now and the difference from when I first started to today has been incredible. My hair has grown so much from the roots, feels healthier overall, and I’ve seen such a noticeable improvement in thickness and regrowth over time. What I love most is that this wasn’t an overnight result — it truly came from consistency and trusting the process. I made it a priority to wear it exactly as directed and stay disciplined with it, and the outcome has absolutely been worth it. I still have more growth goals, but seeing the transformation through my progress photos from the beginning until now is honestly amazing. If you’re patient, consistent, and committed, it really does make a difference. I’ve recently added their hair vitamins because you can’t go wrong…. overall I’m impressed, thank you Kiierr!

I recently contacted customer service regarding a battery problem. The company responded immediately to resolve the issue. Kudos to the Customer Service team for their prompt, efficient attention to the matter.

I have been using the Kiierr 272 Premiere for 3 months now and am beginning to see the signs of new hair coming in. I tried the Theradome for 1 full year and did not see any improvement. In fact, the before and after picture showed further recession. I am optimistic about my results so far and my wife has noticed much less hair falling out once she started using the kiierr device as well. We are happy with the results this far.