Quick verdict: Choose the Maysama LED Hair Growth Comb if you want an all-in-one scalp tool you can buy today: red and magenta LEDs plus microcurrent, RF and a refillable serum well, in 10-minute sessions for $175. Choose Reseen Weave if your priority is the light itself: 660nm VCSEL laser light carried through 36 teeth to tips that touch the scalp. Weave is coming soon, costs more ($299 planned), and neither device is FDA-cleared today.
At a glance
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Reseen Weave |
Maysama LED Hair Growth Comb |
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Availability |
Coming soon |
On sale now |
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Light source |
VCSEL laser (VIPE™) |
LEDs |
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Light emitters |
36 light-guided teeth |
Not published |
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Wavelengths |
660nm red |
"Red and magenta" LEDs; nm not published |
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How light reaches the scalp |
Light travels inside each tooth and exits at the tip, which touches the scalp |
Not published |
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Other features |
Light only |
Microcurrent (EMS), radio frequency (RF), electroporation (EP), refillable serum well, pulsed mode |
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Session time |
Not yet published |
10 min (auto shut-off) |
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Frequency |
Not yet published |
Once a day for 3 months, then 3×/week |
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Battery |
Not yet published |
Not published |
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FDA status |
510(k) clearance pending (expected early 2027) |
No FDA clearance claimed; Maysama says its LED devices are MDSAP-certified |
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Brand-cited study |
None published |
None for the comb; user-reported results only |
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Price |
$299 planned |
$175 (5% off with Maysama's atomizer) |
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Warranty |
Not published |
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Returns |
14 days, unopened with seals intact; buyer pays return shipping |
Info checked: October 2026.
Light source: laser teeth vs LED comb
This is the core difference. Maysama uses LEDs; Weave uses lasers.
An LED emits broad-band light that fans out widely. A laser emits a narrow band in a tight beam. Weave runs on VIPE™, Reseen's VCSEL platform, with a beam angle under 20° versus up to 120° for conventional LEDs, per Reseen. Each emitter runs under 5mW, so it stays non-thermal against the scalp.
Does that make lasers better? Not automatically. Heiskanen and Hamblin's 2018 review in Photochemical & Photobiological Sciences found most head-to-head laser vs LED studies reported similar effects, while flagging a high risk of bias. Their conclusion: LEDs are cheaper and easy to use at home, and lasers keep advantages in narrow bandwidth and power density.
For hair specifically, the 2021 Journal of Clinical and Aesthetic Dermatology review by Lueangarun and colleagues found 28 of 32 FDA-cleared home hair devices used laser diodes only. Laser-only devices also showed a larger pooled effect in its meta-analysis, though from just seven trials that can't separate light source from dose or design. Our LED vs laser guide covers this in depth.
Getting light past hair
On the scalp, hair is in the way. It absorbs and scatters light, and darker hair absorbs more.
Weave's answer is RootReach™. The 36 teeth part the hair, and 660nm red light travels inside each tooth to exit at the tip, which rests on the scalp. Light that leaves at skin level doesn't have to cross a layer of hair or an air gap. These are design principles, not measured Reseen results.
Maysama's product page doesn't describe how its LEDs are positioned relative to the comb teeth or the scalp, or how many LEDs there are. It also doesn't publish wavelengths for its red or magenta LEDs, so we can't compare spectra directly.
Features and routine
Maysama wins on versatility. Per its site, the comb combines four modalities: LED light, microcurrent (EMS), RF and electroporation, with four light modes (magenta, red, red + magenta, and red + magenta pulsed). A refillable serum well lets you apply your own hair serum as you comb. If you already use a scalp serum, that's a genuine convenience.
Maysama's routine is clear: 10-minute sessions with auto shut-off, once a day for three months, then three times a week to maintain.
Weave is deliberately simpler: one job, laser light at the scalp. Session time, frequency and battery details are not yet published. As with any comb, you work section by section, so coverage depends on technique. If you'd rather go hands-free, Reseen's Halo liner covers the whole scalp at once.
Evidence and FDA status
Neither device is FDA-cleared today.
• Reseen Weave: FDA 510(k) clearance is pending, expected early 2027. Weave is a cosmetic device designed to support scalp health for a healthier-looking scalp and fuller-looking hair.
• Maysama: The comb page doesn't claim FDA clearance, and we found no 510(k) under the Maysama name in FDA's database. Maysama says its LED devices are "MDSAP-certified." MDSAP is an audit program for a manufacturer's quality system. It is not an FDA clearance of the device.
Maysama doesn't cite a clinical study of the comb. It says most users report results in two to three months; that's user feedback, not a controlled trial. Weave has no published study either. If clinical evidence is your top priority, look at FDA-cleared laser combs; see Weave vs HairMax.
Price and value
Maysama is cheaper today: $175, versus $299 planned for Weave. For that, you get more features in one device and a product you can buy now.
Weave's case is the light delivery: VCSEL lasers instead of LEDs, piped through light-guided teeth to the scalp. Returns are worth checking too. Maysama accepts change-of-mind returns only within 14 days and only if the box is unopened with seals intact, so you can't try it and send it back. It doesn't publish a warranty period.
Which should you choose?
• Choose Reseen Weave if… you want laser light rather than LED, value light delivered at the scalp through the hair, prefer a focused single-purpose tool, and are happy to wait for a coming-soon device with FDA clearance pending.
• Choose Maysama if… you want to buy today at a lower price, like combining light with microcurrent, RF and a serum well, and want a clear 10-minute daily routine.
Comparing other LED combs? See Weave vs Laduora and Weave vs Solaris, or the clinically studied lasers in Weave vs Xtrallux.
Frequently asked questions
Is the Maysama LED comb FDA-approved?
Maysama's comb page doesn't claim FDA clearance, and we found no 510(k) under the Maysama name. Maysama says its LED devices are MDSAP-certified, which is a quality-system audit, not FDA clearance. Reseen Weave's 510(k) clearance is pending.
What's the difference between a red light comb and a laser comb?
A red light comb usually uses LEDs, which spread broad-band light widely. A laser comb uses laser diodes with narrow-band, directional light. Weave uses 660nm VCSEL lasers guided through its teeth to the scalp.
How long do you use the Maysama comb?
Per Maysama, 10 minutes per session (it shuts off automatically), once a day for three months, then three times a week.
Can I use a hair serum with a red light comb?
Maysama has a built-in refillable serum well. Weave doesn't, so apply any serum separately; a clean, dry scalp helps light reach the skin.
Is laser better than LED for hair?
Not automatically. A 2021 JCAD meta-analysis found laser-only devices had a larger pooled effect, but from only seven trials. Dose, fit and consistency matter too. If you're losing hair, see a dermatologist first.
Sources
1. LED Hair Growth Comb — Maysama, accessed Oct 2026
2. Refund policy — Maysama, accessed Oct 2026
3. 510(k) Premarket Notification database — U.S. FDA, searched Oct 2026
4. Photobiomodulation: lasers vs. light emitting diodes? — Heiskanen V, Hamblin MR. Photochemical & Photobiological Sciences, 2018
5. A Systematic Review and Meta-analysis of Randomized Controlled Trials of United States FDA-Approved, Home-use, Low-Level Light/Laser Therapy Devices for Pattern Hair Loss — Lueangarun S, et al. Journal of Clinical and Aesthetic Dermatology, 2021
Product information for Maysama is based on publicly available sources as of October 2026 and may change; check the manufacturer's site for current details. Maysama is a trademark of its respective owner; Reseen is not affiliated with or endorsed by it. This page is for general education and is not medical advice. Reseen devices are cosmetic devices; individual results vary.