I had an issue with my cap but customer service & a few emails recognized my problem & everything was resolved & back in working order. Great Customer Service!!!!

I’ve been using the red light therapy cap consistently, and I’m genuinely impressed with the results. My hair feels healthier, looks fuller, and I’ve noticed new growth, especially around my hairline where I had been seeing thinning. It’s comfortable to wear, easy to fit into my routine, and requires almost no effort. Hair growth takes time, so consistency is key, but I’m so happy I stuck with it. If you’re looking for a simple, non-invasive way to support healthier, thicker hair, I definitely recommend giving it a try

This product is easy to use and seems to be effective! I really like the built in 30-minute timer and long lasting battery pack. customer service is also very responsive.

Kiierr 272 premier MD laser cap along with kiierr hair thickening and dht blocking shampoo and conditioner has helped thicken my hair remarkably. Thank you Kiierr it nice to know your products does exactly what you say it will do!! Order came in a timely manner and it was packaged perfectly when it was shipped to me. Matt C

I have been using the Kiierr Laser Cap for several years and it has been a game changer for hair loss and regrowth. I absolutely recommend Kiierr!

The LED hat is quality built and has strong LED lights. My scalp is showing signs of regrown and no further hair loss visible. Great product that actually works. Had a small cable problem but the 2 year warranty is sorting that out. . . . Happy customer😁

I am happy with my purchase and have noticed great changes

After I began using my Kiierr cap I noticed thicker hair on the top mid strip area of my head where it was thin. I also noticed no further loss of hair on the top back of my head. After the Power Bank went bad I noticed that my hair began thinning again in both places, which indicates that the procedure was working! RWH

Kiierr's Customer Service, even before you purchase one of their LLLT caps, is fantastic. I had many questions regarding the right type of LLLT cap to purchase as Kiierr offers several models. I asked numerous questions about the different models and LLLT itself. Steven, in Kiierr's customer service department, answered all of my questions. His answers were thorough. I must have exchanged 7 back and forth emails with him. He was always patient and friendly.

And it was RED Easy to use. . put it on in the morning while making my coffee Lights flashing. . diodes dancing on my scalp It's a show to be sure. . but does it work. Like many. . I've tried lotions and potions. . and finally the Kiierr Cap Lets be honest. . I'm just trying to hold on to the hair I have which it appears I am. . Will I look 24 again. . never. . but of everything I've tried. . the Kiierr Cap is the one I have the most faith in. and if it works. . I'll shout. . HIp. . Hip. . Hair-ay

Honestly, I was skeptical about trying the infrared KIIERR. My hair has always been fine and thin, so I didn’t think it would make much of a difference for me. But I stuck with it — just 30 minutes every other day — and started noticing I wasn’t losing hair like before. My bald spots got less noticeable, and my hair felt thicker. Hair means so much to how a woman feels about herself, and being able to see that growth meant I didn’t have to tease it or hide under a baseball cap anymore. I just felt more like myself.

The Kiierr cap has made a difference in the thickness of my son’s hair. His hair began noticeably falling out in 2020-2021 and I ordered a cap for him. My husband also has thinning hair and has recently begun to use it again. My son uses it several times a week and is seeing new growth and a decrease in hair falling out. I truly believe this product has made a big difference.

The laser 272 cap is wonderful been using it for a long time the customer service seems to be operating beautifully as well I needed to have an extra battery just for my own comfort as I travel it was so easy to buy thank you so much I really appreciate the professional service

I couldn't be more pleased with my Kiierr Elite. I had several sizing questions and received a quick, courteous, accurate response for each one. When spending this money on this kind of product, you want to make sure you spending it wisely. Kiierr Customer Service helped me make the right choice.

I bought my Kiierr cap about 3 years ago. It had definitely helped with new hair growth and retaining hair. My barber has commented how healthy my scalp look since a started using the Kiierr cap. I would recommend it as part of your hair and scalp car routine.

Received replacement battery , works very well with existing cap.

I have noticed my part decrease significantly while using the cap. I highly recommend using this product.

Had a minor issue with charging and contacted Kiierr customer service for advice. Steve from the customer service team helped me resolve the matter and after a simple battery reset, the device got back to charging normally. Top notch technical support.

Kiier makes a quality made product. Portable and convenient. Pricey, but worth it and less expensive than other similar products. Didn't start using my Kiier till late in my fifties so no new growth but has sustained my hair loss. Have been using my kiier for 10 years and will continue. First cousins and brother of mine all substantially thinner or worse than myself. I give Kiier all credit.

What can I say other than this company is awesome. Having multiple communications with Steven at Kiierr has been unbelievable. Any and all questions have been answered timely, usually same day and with in moments of me sending emails. Originally I had ordered the 272 cap. As I was using every other day I needed something more powerful. The original cap, travel case and battery are of superior quality and craftsmenship. The laser lights are incredible. This is no knock off or from a company that is only seeking profits over quality. I liked that is was FDA approved. That is substantial in an inferior company would not go the extra mile to be certified and investigated! I'm new to this but did my research against other cap companies. I always came back to Kiierr and was using this company as a strong reference point when comparing to other companies for my final decision.