Hands-free · whole scalp
Folliq Red Light Cap
For thinning across the whole scalp, hands-free while you get on with your day.
97 LEDs · red 650–660 nm + near-infrared 850 nm · 5 mW/cm² · 10/20-min timer · cordless
From $199.00
See the Red Light CapRed Light Therapy for Hair
Red light therapy for hair uses red (650–660 nm) and near-infrared (850 nm) light on the scalp, the wavelengths used in published studies of red-light devices. At home that means 10 or 20 minutes, 3–4 times a week, with a cordless red light cap or a handheld scalp device, plus scalp care for the days in between.
- 90-day home trial
- 2-year warranty on devices
- Free tracked shipping
- CE-marked
Shop red light therapy for hair
Folliq 660nm Red Light Scalp Massager
Red light with a scalp massage, worked area by area.
24 red LEDs at 660 nm + 8 blue · 6-minute sessions · IPX7
From $104.95
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Folliq Rosemary & Batana Hair Oil
A plant-oil blend for scalp and hair between red light days.
Rosemary leaf, batana and black castor oil · 50 ml
From $17.99
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Folliq 100% Unrefined Batana Oil
Pure batana oil for a dry scalp and lengths.
100% unrefined batana oil · 120 ml
From $22.49
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Scalp Derma Roller for Hair, 0.5mm Titanium Microneedling Tool
Scalp microneedling, on days without red light.
0.5 mm · 540 titanium-coated needles
From $12.99
ViewHow to choose a red light device for hair
Five things decide whether a device delivers light the way the studies did. Check them on any device, ours included.
- Wavelength. Red light around 630–670 nm, ideally with near-infrared around 850 nm, the range used in published studies.
- Power and dose. Look for irradiance in mW/cm² and a session time. A device that does not state them gives you nothing to compare.
- Coverage. Thinning rarely stays in one spot. A cap covers hairline to crown at once; a handheld device works area by area.
- Ease of use. Study results came after 16 weeks or more of regular sessions, so cordless, hands-free and a built-in timer matter more than extra LEDs.
- Regulatory status. Some devices are FDA-cleared, others are CE-marked wellness devices. Ours are CE-marked and not FDA-cleared, and we say so plainly.
| Red Light Cap | Red Light Scalp Massager | |
|---|---|---|
| Light | 97 LEDs: red 650–660 nm + near-infrared 850 nm | 24 red LEDs at 660 nm + 8 blue at 460 nm |
| Coverage | Whole scalp at once | Area by area, through light-guide bristles |
| Session | 10 or 20 minutes, 3–4× a week | 6 minutes, switches off by itself |
| Hands-free | Yes, cordless cap | No, handheld with massage |
How red light therapy works on the scalp
Red and near-infrared light pass through the skin of the scalp and are absorbed by the cells around the hair follicles. Research on photobiomodulation suggests this light helps those cells produce more energy (ATP), which may support the growth phase of the hair cycle.
Two things follow. The light has to reach the scalp, so you use it on clean, dry hair. And the effect builds slowly: studies measured changes after 16 weeks or more of regular sessions, not after a few uses. Consistency matters more than session length. Wavelength and dose, explained.
What clinical studies of red light found
These are randomized trials of other red-light devices, each compared with an identical-looking sham device. They describe the category, not the Folliq cap.
+67% vs +28%
increase in hair count, red light vs sham, in 44 men after 16 weeks with a 655 nm helmet
+100 vs +24
hairs in the counted area for 47 women, red light vs sham, after 16 weeks
Different devices, doses and schedules from the Folliq cap; individual results vary. All studies with sources · Does red light therapy work for hair loss?
A simple weekly red light routine
- 3–4× a weekRed light, 10 or 20 minutesOn clean, dry hair. Put the cap on and carry on with your day; it switches itself off.
- 1× a weekDerma roller, on a day without red light0.5 mm over the thinning areas. Keep roller and red light on different days.
- As directedScalp oilMassage a few drops into the scalp, following the directions on the label.
- Every 4 weeksSame photo, same lightHair changes slowly. Photograph your part or crown in the same spot and compare after 16 weeks.
The cap sets bundle the cap with the oils and the roller for this routine. Which comes first? Red light and derma roller: the right order.
Is red light therapy right for you?
Usually a good fit
- Women noticing a wider part or a thinner-looking crown
- Men with a receding hairline or thinning crown (guide)
- Gradual thinning over months or years
- Anyone who wants a drug-free routine, alone or next to what they already use
Check with a doctor first
- Sudden or patchy hair loss, or hair coming out in clumps
- Scalp pain, redness, scarring or a rash
- Pregnancy, a light-sensitive condition or photosensitising medication
- Hair loss together with feeling unwell, weight change or tiredness
90-day home trialUsed is fine. Free return label.
2-year warrantyRepair or replace, on every device.
Free tracked shippingFrom our US and German warehouses, no import fees.
CE-markedA cosmetic wellness device. Not FDA-cleared, not a medical device.
Red light therapy for hair: guides
Does Red Light Therapy Work for Hair Loss? What the Trials Found
Do Red Light Therapy Hats Work? What the Studies Show
LED vs Laser for Hair Growth: Does Coherence Matter?
Low-Level Light Therapy for Hair: Wavelength and Dose Explained
Red Light Therapy vs Minoxidil: How They Compare for Hair Loss
Red Light for a Receding Hairline or Thinning Crown: A Men's Guide
Is a $900 Laser Cap Worth It? Laser vs LED Caps Compared
Derma Roller and Red Light Therapy: Order and Weekly Schedule
Red light therapy for hair: FAQ
Does red light therapy for hair actually work?
Randomized trials of red-light devices found more hairs per cm² than identical-looking sham devices after about 16 weeks, in both men and women. Results vary from person to person and depend on regular use. Read the full evidence review.
How often should I use red light therapy for hair?
Most studies used sessions three times a week or every other day. With the Folliq cap that means 10 or 20 minutes, 3–4 times a week. More often is not better; regular is.
How long until I notice a difference?
Hair grows slowly, so plan on at least 16 weeks of regular use before you judge; the studies measured at 16 to 26 weeks. Take a photo in the same light every four weeks to compare.
Are there side effects?
Studies reported few side effects, and the ones mentioned were mild and temporary, such as scalp itching or a short phase of extra shedding. The cap gives off no noticeable heat. Read our safety page if you have a light-sensitive condition or take photosensitising medication.
LED or laser: which is better for hair?
Both deliver red light in the same range, and studies have used lasers, LEDs and mixes of both. Lasers cost more to make; what matters most in the studies is wavelength, dose and regular use. LED vs laser, compared.
Can I combine it with minoxidil or a derma roller?
Red light is often used alongside other routines. Keep the derma roller on separate days from red light, and ask your doctor before combining it with prescription treatments. Red light vs minoxidil.
Start with the cap
90 days at home, used is fine. 2-year warranty.
See the Red Light Cap