Kiierr272 DualWave Laser Cap

5.6
Usability6.3Social5.0

23rd of 38 we've scored in Laser Hair Growth Caps & Helmets

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6.3
SVT SCORESRead review

272-laser flexible cap at 650 and 808 nm, 6 minutes a day; no 510(k) describes it.

$1,499

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SKU: KIIERR-272-DUALWAVE Category: Brand:

Usability

Usability

Usability Score
The Six-Minute 272 That No Filing Describes

The 272 DualWave puts 272 diodes in Kiierr's flexible carbon-fibre cap, mixing 650 nm red with 808 nm near-infrared lasers, 1,360 mW in total by Kiierr's figure, for continuous 6-minute sessions every day. Kiierr's page gives the split as 232 lasers at 650 nm and 20 at 808 nm, which adds to 252, while an older Kiierr page gives 232 and 40. No 510(k) describes it: Kiierr's K181878 covers 650 nm caps with 148 and 272 diodes on a 30-minute schedule, and Cosmo Far East, the maker K181878 names, holds no clearance for a cap with 808 nm lasers, so it scores 2 on verification although Kiierr sells it as FDA cleared. Its session is a fifth as long as the 272 Premier's, for $300 more. It has no Amazon listing and no product-level review; the social pools describe Kiierr's other caps. The warranty is 2 years.

PROS
  • 272 lasers at 650 and 808 nm, 1,360 mW total per Kiierr
  • 6-minute daily sessions, cordless with auto-off
  • Flexible carbon-fibre cap
  • Fits heads 23.5 to 24 in, per Kiierr's spec tab
  • $300 less than the 302 Ultra Flex
CONS
  • No 510(k) describes it, though Kiierr sells it as FDA cleared
  • Kiierr's laser split adds to 252, not 272
  • No output measurement published
  • 2-year warranty
  • Guarantee refunds keep a 25 percent fee
  • No Amazon listing or product-level review

The Kiierr 272 DualWave is a flexible laser cap with 272 diodes at 650 nm and 808 nm, which Kiierr rates at 1,360 mW in total, in a carbon-fibre shell worn under the included ball cap. It runs continuous 6-minute sessions every day from a rechargeable battery pack with a power cord and wall adapter, and switches itself off at the end. Kiierr sizes it for heads 23.5 to 24 inches around and covers it for 2 years, with the 7-month money-back guarantee and its 25 percent fee.

Social Scores

Social Scores

Social Score
Brand-level

Kiierr is the brand of Kiierr International LLC of Tooele, Utah, as its terms give the company, and it sells through kiierr.com, a second storefront at kiierrhealth.com and its own Amazon store. Kiierr holds 4.4 from 352 Trustpilot reviews on kiierr.com (TrustScore shown as 4.5), split 75 percent five-star against 13 percent one-star, with 141 posted in the last 12 months; the profile has been claimed on a paid subscription since March 2023, Trustpilot marks it as not having invited customers recently, and the company replies to 30 percent of negative reviews, typically within a week. Most recent five-star entries are short notes on fast shipping, ease of use and named support staff, while the 2025-2026 one- and two-star reviews center on refunds refused under the 7-month guarantee for missing the 45-day registration window, orders that sat unshipped for weeks without tracking, a cap whose inside circumference runs about 22 inches against the advertised 23.5, a battery that died at 10 months with a $24.95 charge for the warranty replacement, a warranty repair the owner was billed for, and email-only support with no working phone line. BBB lists the company as Kiierr International, LLC (Salt Lake City, UT) with an A+ grade, no accreditation and 24 complaints in three years, 21 answered and 3 resolved, five of them closed in the last 12 months; the complaints concern guarantee refunds left unprocessed, warranty emails going unanswered, caps too small to wear and a $300 charge on a size exchange that Kiierr later waived, and BBB's own customer reviews average 1.44 from 9, eight of them one-star. SmartCustomer (formerly Sitejabber) lists kiierr.com at 2.0 from 2 reviews and flags it as not collecting reviews, ConsumerAffairs carries no Kiierr page, the second shop domain kiierrhealth.com has no Trustpilot profile, and FDA's recall and adverse-event databases hold no Kiierr entry; the one federal suit on record is Capillus's 2019 trademark claim against Kiierr, voluntarily dismissed that August. The guarantee refunds a cap returned 210 to 240 days after delivery minus a 25 percent service fee, waived only for owners who registered a before photo within 45 days and kept seven monthly date-stamped photos or videos; kiierr.com's own review widget (4.5 from 2,145 on the 272 Premier page), its FrontrowMD clinician panel (1,266 clinicians) and its '100,000+ happy customers' line are figures no pool counts, and the one Amazon cap listing reads 3.8 from 107. Kiierr sells its caps through kiierr.com, kiierrhealth.com and its own Amazon store; its two Walmart listings are out of stock with one rating between them, and no other US retailer carries the caps, so no retailer review file reaches the ten-review floor.

Additional information

Specification: Kiierr 272 DualWave Laser Cap

Red Light Therapy Specifications
Device Type

Hair cap

Wavelengths

Near-infrared (800-880 nm), Red (620-680 nm)

Irradiance Claimed

Not published

Irradiance Measured

Not measured

FDA Status

Registered or listed only

Safety Listing

None verifiable

Power Source

Detachable battery pack

Session Length

5-10 min

General Specifications
Warranty

2 Years

Dimensions

Not published

Weight

Not published

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