Kiierr Review| Beware the Hype

a man checks his hair loss in a mirror

While their product is FDA-Cleared, there’s got to be a red flag coming up in your mind when you hear that an entire laser cap business popped up overnight with the infrastructure necessary to properly conduct quality control and comply with the many regulations of the laser cap industry.

Many brands, including Kiierr have sprung up, using illumiflow as the predicate for FDA clearance.

Here’s a simple timeline using data from the FDA records of when Kiierr FDA clearance was granted. Note that Kiierr was granted FDA clearance through a laser device which gained its FDA clearance from illumiflow, effectively making illumiflow the grandparent predicate device.

The takeaway here is that most laser device websites are not established companies and are likely run by internet marketers who chase profits first with quality control and infrastructure a second thought.

Of course, this is just opinion, but the optics are NOT good, so it’s worth doing your research before buying online.

“Fast” isn’t good when it comes to start-up laser cap brands

Running a laser cap company is expensive by nature, requiring infrastructure to support a team who can tend to endless assessment of emerging and current technologies, science and health, and customer service, all while remaining compliant to regulations. Meanwhile, to some companies, FDA clearance is just another startup cost.

The most obvious signs that Kiierr is operated by internet marketers and not people who are passionate about hair loss:

When Kiierr first launched their website, they used misleading information to project the image of a longstanding company with a history of sales and support. Most such information has since been removed – after websites like this one called them out online. Here are a few examples, some of which can be seen by stepping back in time on websites like

  • They recently removed customer reviews on their website predating their FDA clearance.
  • The badges on their homepage for CNN, DATELINE, TODAY, The DOCTORs are misleading and link to the Kiierr product page, not to actual press information. Here’s the original website presentation from earlier in 2019:
Kiierr Laser Caps
No disclaimer here! (February 2019)

Later in 2019, they updated their website with a small disclosure reading “LLLT Has Been Featured In:” See the image below. It’s circled in red so you can see. This is a common internet marketing tactic. Note the additional disclosure is in light gray text, intentionally hard to read, which basically says that they’re toeing the line, but this isn’t necessarily for the shopper consumption.

Home Page for Kiierr Laser Caps for Hair Loss
Note the new disclaimer… but the media icons still don’t link to relevant press information! (Current date)

Since their recent FDA clearance, they’ve flooded the internet with pop-ups and retargeting ads, a clear message of where time, energy, and money are being spent, marketing.

Kiierr basically copied content and concepts from other established brands websites. See the examples below, listed oldest to newest. Very similar, right?  This is not necessarily illegal or wrong in general, but it is very telling as to who set the standard in this industry and which brands are “fast-followers”.

August 2018 illumiflow Home Page
illumiflow laser caps home page

Kiierr December 2019 Home Page
Newly Update Home Page for Kiierr

Illumiflow 2017 Comparison Chart
illumiflow 2017 Laser Cap Helmets Comparison Chart

Illumiflow Update 2019 Comparison Chart
Best Laser Caps for Hair Loss Compared

Kiierr 2019 and Obviously Copied Comparison Chart.

Note the Similarities.
Best Laser Therapy Option

While we can’t be sure what’s going on at Kiierr headquarters, in general when so much is spent on marketing in the early days of business, areas such as customer support, product safety or quality control can take a hit.

Established companies like illumiflow, Capillus, and iRestore (full iRestore review here) are safe bets for both quality, safety, and service, so if you’re buying your first laser cap, it might make the most sense to stick to these original brands who were built on a solid foundation.

Illumiflow is very open about taking FDA clearance seriously—you can read their blog post about it here.

Laser Cap for Hair Loss FDA Clearance
Image Source


  1. The advertisement says “no risk, money back guarantee 100%” It does not say, “if” There are several ifs. You will see the cap is not recommended for ALL patterns of hairloss. Mine is not covered. I tried to return the cap and had not registered even though they have records of my purchase. They will not take back their product. BEWARE !!!!!!

    • I’m really sorry to hear that happened to you with Kiierr, Cheryl.

      So they didn’t live up to their 7-month Money Back Growth Guarantee?

  2. No results for me after a year of Kiierr cap use. I used the cap judiciously for a full year and saw little to no results, in fact I think my hair loss got worse during that time. The first 3 months I also took the Kiierr supplements. After 6 months my cap stopped functioning, and they replaced both the cap and battery pack. I mistakenly thought that the “guarantee” for hair growth required a year of use (rather than 7 months), and so attempted to get a refund after a year but was told I had missed my chance. If you want to use their “guarantee”, be sure to read all of the requirements when you first get your cap. You need date-stamped pictures both at the beginning and end of the 7 month period and have to register your purchase within 45 days of purchase.

  3. I purchased a Kiierr cap and when it arrived I found it would not come close to fitting my size 7 1/2 head. I contacted Kiierr, received a return authorization, and immediately returned it. Other than the cap nothing in the original packaging was touched. When I asked for a refund based on an unusable product I was told that there was a 20% restocking charge. I questioned this based on the “100% satisfaction guarantee.” I was told that this only applied if I kept and tried their product for seven months. Buyer beware! In my opinion there should be NO restocking charge for a product that was not usable from day one.

    • Hey Bruce, thank you for letting us know.

      I can imagine that was quite frustrating and seems like a pretty high restocking fee if you ask me.

      I appreciate you sharing so others know.

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