Transform Your Life with Clinically Proven Red Light Therapy*

32 precision diodes. One familiar habit.

The Capillus Red Light Brush delivers 650nm red light to your scalp with every stroke.

What it is

A Red Light Therapy device in a brush you already know how to hold.

The Capillus Red Light Brush is an over-the-counter, at-home device that delivers 650nm red light to the scalp. 32 diodes sit in the brush head, putting clinical-grade photobiomodulation into the exact motion you already make every morning.

32

Diodes

650

Nanometers

5

Min / Session

Why it's different

A familiar format with zero friction

The brush form fits a routine you already keep. No new habit to build, just a more intentional version of something you already do.

No known side effects

Photobiomodulation has a well-established safety profile. Drug-free, non-invasive, and backed by over a decade of Capillus device engineering.

Treat your scalp the way you treat your skin

You invest in your skincare. Your scalp is skin, and the follicles beneath it respond to the same intentional care.

Built on verified wavelength science

650nm sits in the 630-680nm range studied in peer-reviewed photobiomodulation research for scalp and follicle health. Not a marketing number.

What's in the Box

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Product device

Main product

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Charging cable

Power accessory

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Quick-Start Guide

Setup instructions

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How it works

What 650nm red light does inside the scalp.

650nm sits in the wavelength range studied in photobiomodulation research for its interaction with scalp tissue. Applied consistently, it supports the cellular and vascular environment your follicles depend on.

01

Light reaches the scalp

650nm red light penetrates to the upper dermis, where follicles are anchored, the target depth in low-level light therapy research.

02

Follicles are invigorated

Red light energy is absorbed by follicle tissue, helping invigorate follicles and support the conditions for healthier-looking hair.

03

Circulation is supported

Red light therapy supports improved scalp microcirculation, maintaining the nutrient-rich environment follicles need to thrive.

04

Results build over time

Photobiomodulation works cumulatively. Consistent use is what drives meaningful, lasting results.

Something you can do while getting ready

You already brush your hair every morning; turn that habit into an active therapy session, without adding a single step to your routine.

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Built Into Your Routine

You're already brushing. Now every stroke is a therapy session. No new habits. No timers. Just keep going.

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32 diodes. 650nm.

Clinically studied wavelength. Delivered to your scalp in 5 minutes, automatically. The device shuts off when the session is done.

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Treat your scalp like your skin

You invest in your skincare. Your scalp deserves the same attention. Red light supports circulation and creates the ideal environment for healthier hair.

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Built on a Decade of PBM Engineering

Capillus has been engineering photobiomodulation devices for over 10 years. This is science in a form you can use every day.

The protocol

Every day. 5 minutes. Consistent.

For optimal results, use once daily for 5 minutes every day. The device is designed to make that effortless: it starts automatically and shuts off when the session is done.

Daily

Use

5

Min / session

650

Nanometers

Frequently Asked Questions

Get the answers
you actually need.

We know you have done the research. Here are the honest answers.

That's exactly how it's meant to be used. Daily, as part of your normal brush-out. There's no maximum dose, and every session counts. Consistency is what moves the needle with any hair protocol, and the brush is built around making consistency the path of least resistance.

Work through four zones: crown first, then temples, sides, and the hairline. Slow, overlapping strokes give the light a moment to make full contact. If there's a specific area you're watching, spend a little extra time there. Most women prioritize the crown and temples because thinning tends to show up there first, but there's no wrong approach.

Yes, without any concern. LLLT doesn't interact with topical or oral treatments; they work through completely different mechanisms. Many people use the brush as part of a broader protocol. Whatever you're already doing, keep doing it. The brush adds without getting in the way.

Two things, mainly. The wavelength is published and verified, 630–680nm, the range that actually shows up in clinical research. Many generic brushes don't publish their wavelengths at all, or use LEDs that fall outside the studied range. The brush is built by Capillus, a team that has been manufacturing FDA-cleared laser therapy devices for hair for over a decade.

They're made to work together. The cap is an intensive, concentrated session where you sit still; it does its job. The brush is a daily maintenance built into the morning routine you already have. Cap for the deep session, brush for every day.

The light penetrates the scalp and gets absorbed by cells inside the hair follicle. That absorption triggers a process that supports the follicle's natural growth cycle, helping it remain active longer.

The research record on this is long and clean. No adverse effects have been reported across multiple clinical trials. It's been used in dermatology and physical medicine for decades.

Talk to a hair specialist.

Not sure if this product is right for you? Our specialists can help you find the routine that fits your situation.

Available Monday-Friday, 9am-5pm ET. No purchase required.

The Science

Built for proof.

The Capillus Hairbrush is built on Low-Level Laser Therapy (LLLT), which has been studied in peer-reviewed trials and shown to support hair count and density in people experiencing androgenetic alopecia. The same clinical technology behind Capillus's FDA-cleared laser Caps is now in the one tool you use every morning.

Capillus has spent over a decade building PBM devices alongside the dermatologists and hair loss specialists who recommend them. The brush brings that same wavelength precision to the areas that matter most, crown, temples, and hairline, with no extra time, no separate session, and nothing new to remember.

Clinical evidence refers to published LLLT/PBM research for androgenetic alopecia. Individual results may vary.

Visit the Research Hub

Clinically Studied Technology

LLLT/PBM is supported by peer-reviewed research for hair count and density in androgenetic alopecia.

Capillus Laser Technology

Built on over a decade of clinical laser therapy development and physician-channel trust.

Drug-Free & Non-Invasive

No drugs or needles, no side effects associated with topical treatments or oral medications.

It Only Takes Consistency

Honest timelines. Results develop with consistent use over weeks and months. Individual results vary.

Safety & regulatory

Held to medical-device standards

Capillus laser devices are built and labeled to the same clearances that govern clinical equipment. Here are the specifications and precautions that come with that standard.

Regulatory compliance

Capillus, LLC lasers comply with 21 CFR 1040 for Class 3R Laser Products as administered by the Center for Device and Radiological Health of the US Food and Drug Administration, and standard IEC 60825 of the International Electrotechnical Commission.

Precautions

Laser therapy should not be used in conjunction with medications or products that are photosensitizing.

Consult with your physician before using the Capillus cap if you have cancer of the scalp, or if you are sensitive to light of 650 nm in wavelength.

Safety labels

Laser safety is the safe design, use, and implementation of lasers to minimize the risk of laser accidents, especially those involving eye injuries. To control that risk, various specifications define the “classes” of lasers by power and characteristics. Every device ships with this affixed label:

Affixed laser-aperture and radiation-warning label, per IEC 60825 / 21 CFR 1040.

Specifications

What's inside.

Model

Red Light BRUSH-2025A

LED count

32 diodes

Wavelength

650nm red light

Output power

5mW

Session duration

5 min (auto-shutoff)

Frequency

3x per week

Battery

3.7V, 600mAh Li-ion

Charging

USB-C, 5V/1A

Charge time

1-4 hours

Dimensions

250 x 83 x 40mm

Weight

134.5g

Warranty

60 days

Clinic-grade red light, without the clinic.

$225.00

One-time · about 62¢ a day over a year

A salon light-therapy session runs $80-150 and leaves you with nothing.

The Red Light Brush is the same 650nm light. Yours to keep.

Explore the science of Photobiomodulation

Explore the science of Photobiomodulation
Explore the science of Photobiomodulation

Discover how the technology works

Your hair grows from follicles, tiny living structures underneath your scalp. Like every living cell in your body, follicles run on energy. When that energy drops from hormonal changes, stress, or age, follicles slow down, shrink, and eventually stop producing hair altogether. Red light at the right wavelength reaches those follicles and recharges them. The light is absorbed by the cell's energy-producing part and converted into fuel. More fuel means the follicle stays active longer, sheds less, and produces thicker, denser hair over time. The wavelength matters because cells are specific about what they absorb. 630–680nm is the range where the absorption happens. Clinical research on this technology, across multiple peer-reviewed trials, has shown 35–51% more hair than placebo over 16 weeks. From light, at the right wavelength, delivered consistently to the scalp.The brush makes the consistent part easy. Every morning you already brush your hair. Now, each and every stroke is doing something.

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