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




Light Therapy, Built Into Your Brush
The Capillus Red Light Brush delivers 650nm low-level red light therapy through 32 precision diodes with every stroke you already take. Backed by clinical research on hair follicle health. Built on over a decade of photobiomodulation engineering. You brush your hair every morning. Now that habit does more.
Brush for as long as you normally brush; every stroke is active. The therapy occurs whenever the brush moves through your hair.
Work through the scalp in four passes: start at the crown, move to the temples, sweep the sides, then finish along the hairline. Try slow, overlapping strokes, let the light make contact.
Output power: 5mW/ diode
Batteries. Charge via USB-C (about 1-4 hours).

Capillus Red Light Brush
32 precision diodes. One familiar habit.
What it is
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
The brush form fits a routine you already keep. No new habit to build, just a more intentional version of something you already do.
Photobiomodulation has a well-established safety profile. Drug-free, non-invasive, and backed by over a decade of Capillus device engineering.
You invest in your skincare. Your scalp is skin, and the follicles beneath it respond to the same intentional care.
650nm sits in the 630-680nm range studied in peer-reviewed photobiomodulation research for scalp and follicle health. Not a marketing number.
Product device
Main product
Charging cable
Power accessory
Quick-Start Guide
Setup instructions
How it works
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.
650nm red light penetrates to the upper dermis, where follicles are anchored, the target depth in low-level light therapy research.
Red light energy is absorbed by follicle tissue, helping invigorate follicles and support the conditions for healthier-looking hair.
Red light therapy supports improved scalp microcirculation, maintaining the nutrient-rich environment follicles need to thrive.
Photobiomodulation works cumulatively. Consistent use is what drives meaningful, lasting results.
You already brush your hair every morning; turn that habit into an active therapy session, without adding a single step to your routine.
You're already brushing. Now every stroke is a therapy session. No new habits. No timers. Just keep going.
Clinically studied wavelength. Delivered to your scalp in 5 minutes, automatically. The device shuts off when the session is done.
You invest in your skincare. Your scalp deserves the same attention. Red light supports circulation and creates the ideal environment for healthier hair.
Capillus has been engineering photobiomodulation devices for over 10 years. This is science in a form you can use every day.
The protocol
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
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.
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
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 HubLLLT/PBM is supported by peer-reviewed research for hair count and density in androgenetic alopecia.
Built on over a decade of clinical laser therapy development and physician-channel trust.
No drugs or needles, no side effects associated with topical treatments or oral medications.
Honest timelines. Results develop with consistent use over weeks and months. Individual results vary.
Full-Body Red Light Immersion for Ultimate Wellness
10720 Medical Grade LEDs
The first full-body red light system built around measurable recovery.
10720 Medical Grade LEDs
Safety & regulatory
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.
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.
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.
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
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
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.