Halo vs Capillus: Which Laser Cap Fits Your Routine?

Quick verdict: Choose Capillus if you want an FDA-cleared laser cap with a published randomized trial, a six-minute daily session, more lasers and near-infrared options, and you're comfortable paying $1,699 or more. Choose Halo if you'd rather slip a flexible laser liner into a hat you already own, want red and blue light modes, and prefer a lower planned price ($499), knowing its FDA 510(k) clearance is still pending.

At a glance

Info checked: October 2026. Capillus prices are list prices on capillus.com; promotions change often.

Light source and wavelengths

Capillus is a laser-only brand. Its product pages describe the PRO as using "laser-only technology," and every current cap model lists medical-grade laser diodes rated at 5mW. The PRO runs 272 diodes at 650nm. The Spectrum adds 40 near-infrared diodes at 808nm for 312 total, and the TriSpectrum splits its 312 diodes across 650nm, 780nm and 808nm. If you specifically want infrared wavelengths in a cap, Capillus offers them and Halo doesn't.

Halo takes a different approach. Its FlexArray™ liner pairs 128 × 660nm red VCSEL lasers with 128 × 460nm blue LEDs, so you can run red light, blue light or both. Halo has fewer lasers than the Capillus PRO, Spectrum or TriSpectrum. Its blue LEDs add a surface-level scalp-balance mode that Capillus caps don't offer.

One honest note from the research: a 2021 review in the Journal of Clinical and Aesthetic Dermatology by Lueangarun and colleagues pooled trials of FDA-cleared home devices and found a significant difference between laser-only devices and devices combining lasers with LEDs, with laser-only devices showing the larger effect. The authors also note that only a few short-term trials were available. Worth knowing when weighing a laser-only cap against a mixed design.

Fit, form factor and wearability

This is where the two products differ most. Capillus places its diodes in a fixed dome; its FDA 510(k) summary calls the devices "laser domes." It's hands-free, and the PRO ships with a Capillus sport cap so it looks like headwear.

Halo is a liner, not a dome. FlexArray uses five flexible panels that bend to the shape of your head and then snap magnetically into the included Reseen cap or slide into most standard baseball caps you already own (darker caps are recommended). Our FlexArray technology post explains why fit matters: light spreads with distance, which affects scalp coverage. If you'd rather wear your own cap, that's Halo's main draw. For a deeper look at the format question, see laser liner vs laser cap.

Routine and ease of use

Capillus wins on session length. Its caps run a six-minute session and shut off automatically, and Capillus says the cap should be used every day. Wareable's 2026 hands-on review of three Capillus models praised the short sessions and the battery pack that let the reviewer move around. It also noted that daily sessions were easy to forget and that the battery needed charging about every five to six days.

Halo's sessions are longer: 10 minutes for Red · Daily Care or Blue · Scalp Balance, and 15 minutes for Red + Blue · Deep Care. Halo is wireless and charges by USB-C, and smart wear detection starts the light only when the liner is in proper contact. In an ordinary-looking cap, you can wear it on a walk or at your desk.

Evidence and FDA status

Capillus has a clear lead here, and it's fair to say so plainly.

• FDA clearance: The FDA 510(k) database lists Capillus clearances dating back to January 2015 (K143199, Capillus 272 Pro), and a 2017 clearance (K163170) covering the Capillus 82, 202, 272 Pro, 302, 312 and 352 at 650nm for androgenetic alopecia in men and women. Capillus says its current caps are FDA-cleared; we couldn't match the newer Spectrum and TriSpectrum names, with their 808nm and 780nm diodes, to a specific 510(k) listing, so check with Capillus if that matters to you.

• Published trial: A double-blind, sham-controlled trial of the Capillus272 Pro in 44 women (Friedman, 2017), summarized in the Lueangarun review, used 30-minute sessions every other day for 17 weeks and reported a greater increase in terminal hair counts with the active device than with sham. Capillus reports this as a 51% improvement. Note that the trial protocol differs from today's six-minute daily routine. Capillus itself states: "There have been no clinical trials to date on the other Capillus models."

Halo: FDA 510(k) clearance is pending, expected early 2027. Halo has no published clinical trials. It's a cosmetic device designed to support scalp health for a healthier-looking scalp and fuller-looking hair.

Price and value

Capillus caps are a significant investment: $1,699 for the PRO, $2,699 for the Spectrum and $3,299 for the TriSpectrum at list price, though discounts appear regularly. Capillus also sells an 82-diode HairBand for $599.99, which its own page says is not currently FDA-cleared for hair loss.

Halo is planned at $499 (provisional). That's well below Capillus's caps, but the saving comes without FDA clearance, a published trial or the higher laser counts.

Warranty and returns

Capillus offers a three-year limited warranty on its caps and a six-month satisfaction guarantee on new devices bought directly from capillus.com. Per its product pages, returns carry a 25% service fee and you pay return shipping. For Halo's terms, see the Reseen warranty.

Which should you choose?

• Choose Reseen Halo if… you want a laser liner that fits inside a hat you already own, a flexible five-panel fit, red and blue light modes, a wireless USB-C design and a planned $499 price, and you're comfortable with a cosmetic device whose FDA clearance is still pending.

• Choose Capillus if… FDA clearance and a published randomized trial are must-haves, you want the shortest daily session (six minutes), you'd like more lasers or near-infrared wavelengths, and a $1,699+ budget works for you.

Frequently asked questions

Is Capillus FDA approved?

Capillus devices are FDA-cleared through the 510(k) process, not FDA-approved. Clearance means the FDA found a device substantially equivalent to one already on the market. The 510(k) database lists Capillus clearances from 2015 onward.

How long do you wear a Capillus cap each day?

Capillus says six minutes, once a day, with automatic shut-off. Its pages warn that going beyond the recommended time or frequency won't increase the effect.

Capillus vs iRestore: what's the difference?

The biggest difference is the light source. The Lueangarun review lists Capillus as laser-only, while iRestore combines laser diodes and LEDs. For how Halo compares with iRestore, see Halo vs iRestore.

Kiierr vs Capillus: which has shorter sessions?

In Wareable's hands-on review, Capillus's six-minute sessions were much shorter than the Kiierr cap's 30-minute sessions. Read our Halo vs Kiierr comparison for more on Kiierr.

Does Halo use the same technology as Capillus?

Both use red laser light, around 650–660nm. Capillus uses laser diodes only in a dome, while Halo combines 660nm VCSEL lasers with 460nm blue LEDs on a flexible liner that fits in a cap.

Sources

1. Capillus homepage and product lineup — Capillus, accessed Oct 2026

2. Capillus PRO — Capillus, accessed Oct 2026

3. Capillus Spectrum — Capillus, accessed Oct 2026

4. Capillus TriSpectrum — Capillus, accessed Oct 2026

5. Capillus HairBand — Capillus, accessed Oct 2026

6. 510(k) Premarket Notification database, applicant Capillus (K143199, K163170 and others) — US FDA, accessed Oct 2026

7. 510(k) Summary K163170: Capillus laser domes — US FDA, 2017

8. 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

9. I tried three Capillus laser caps: Here's my honest take — Wareable, 2026

Product information for Capillus is based on publicly available sources as of October 2026 and may change; check the manufacturer's site for current details. Capillus 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.