Kiierr Hair Growth Reviews 

Just had the cap several weeks, but its easy to use. Looking forward to great results!

I was skeptical at first, but after consistent daily use I’ve noticed my hair feels thicker and healthier, with subtle but clear improvements. Definitely glad I gave it a try.

Although the laser hat did not grow new hair it may have slowed my hair loss. I believe it will regrow hair with some forms of hair loss.
They have always been quick to provide support and even extended their guarantee window in the hopes later results would be achieved. In the end, they were willing to provide a full refund. They stand by their product.

Kiierr has been wonderfully responsive and supportive. I’m excited to start my hair growth journey with their cap and other treatments!

Product is easy to use. they offer rebates and a growth guarantee. Been using for 2 weeks, will update in about 6 months.

I ordered one it didn’t fit they said they would send me a larger one and they haven’t 4 weeks later the company is a scam and won’t refund my money or anyone’s money outside of narrow guidelines they can wiggle out of! Do not trust this company buy from another company

It’s pretty easy to use, would have like to not have to walk around with a battery pack though

Received promptly. Easy to read instructions. I had a bald spot from cryosurgery with 50/50% chance of regrowth as per Dr. I have been using cap for 4 months and have about 1.5” of hair on the once bald spot!.. seems to work as my hair has always grown very slowly.

I purchased a Kiierr Laser Cap in November, 2024 at the cost of $739. The battery died 10 months later. The company provided trouble shooting instructions and then, when the battery failed to restart, offered to send a new battery (under their warranty) for $24.95. Since the cap had not produced any discernible hair regrowth, I did not spend the additional money and DISCARDED THE CAP.
During usage I found the prescribed extended treatment time - 30 minutes - inconvenient. However, I was faithful in compliance so very disappointed at lack of results.

Note: re the seller's offer below - when I emailed to decline paying for a new battery the seller did not respond and dropped email contact. As already noted I thereupon discarded the cap. So at this time a new battery offer is moot.

I AM delighted to hear that other customers will benefit from the new design with much shorter treatment times.

After several years of use my cap stopped working. Allsion from customer service helped me troubleshoot, suggested a replacement battery pack and because of some logistical/timing issue she was able to get me a free battery pack replacement which solved my problem. THANKS!

Thus far, I have had no problems with this device. It is comfortable to wear (although it’s good to know that the hat is not “flexible”; rather, it is has a hard shell that fits into the baseball cap cover). I have a sensitive scalp but have had no irritation. Customer service is very helpful (although I did have initial difficulty getting into contact with them, once I did, they were very attentive). Easy to register the device (don’t forget to upload your before photo)! Great money back guarantee in the case that you do not see results (no restocking fee if you document your progress with photos). All in all, a great experience thus far.

Very easy order process, communicated well about shipping times, and the instructions that came with the product were easy to follow. They also sent a personalized video of support, thanking me for my purchase and offering customer support if needed.

I ordered and received my 272 cap last week. Arrived within 4 days of order. I ordered this as an update to replace my
IGROW unit that had stopped working due to a failed connector the week before. This cap is so much more comfortable to wear, as I don’t have to balance it on my head (limited mobility) like the IGROW helmet. This cap has many more lights, and the coverage on my scalp is much larger, so I am hoping this will provide improved growth support to the rear crown portion of my scalp. It is also easier to wear during treatment since the cap cord plugs into a handheld battery pack, as opposed to connecting to an outlet. This sense of freedom is most appreciated. Looking forward to excellent results. Time will tell.

The device was eventually delivered but it took 20 days from the time it was ordered, which in my case meant that I won’t be able to use it for a couple of months because I am now abroad.

The three stars represents the slow/lacklustre delivery. I think the company needs to be more upfront about how long it takes to arrive. The headline “two day shipping” leads one to think it would arrive in a week or so, although if you drill down into the finer print it says there might be some delays because they are busy. I didn’t see that until after I had placed the order but either way 20 days is a relatively long time. The shipping itself appears to have only taken two days from when it was ‘processed’ but it took about 18 days after they received the payment to process it, which I find a bit odd.

I also think that Kiierr should require a signature on delivery because these days packages can easily get stolen.

Eventually when I actually have the device in my hand (when I am back from abroad) I intend to use the device and if it works I will increase the rating but the shipping experience wasn’t good. There was a customer service rep who was polite so I give them credit for that at least.

Wow, these diodes are bright! I received my cap within a week and the financing option with affirm made it an easy decision to prevent my hair from thinning more. I have been using the cap for about 2 weeks and my wife says its already working. I have photos from the day I began using it. Only time will tell from here.

The cap arrived as promised.
I purchased the cap on the 19 and it arrived by the 22nd. The instructions were easy to follow. The battery was charged to 75% and I was able to use the cap within a couple of hours. It fit and felt good. Fingers crossed for a positive result.

Just used the cap for the first time. Seems awesome. Hope to get good results.

There was a slight delay on delivery but Louder was very proactive in ensuring I was informed about status and status changes.

Gear is easy to use and charging is a breeze. It can be used while doing other things as the battery is very portable and I love the mirror on the battery - very useful s. My order for the lowest level type was delayed and I was upgraded for only $75 to the next level hat/cap. I think I am seeing a little more hair growth already after 2-3 weeks.

Easy online ordering. I am also happy with customer service. The registration asks for a photo of the persons hair, and based on the website language I thought that was for the warranty, rather than the 7 month hair guarantee. (I am very sensitive about my hair issues). Customer service reached out to me and addressed the misconception.