Can red light therapy help menopause hair loss? Placebo-controlled studies of red-light devices in women found more hairs in a small counted area than look-alike "sham" devices after 16 to 26 weeks, and one large set of trials found the effect didn't depend on age within the ages studied. Those trials enrolled women up to age 60 to 65, which makes them a useful guide for women over 45.
This guide is about red light specifically, for women in their 40s, 50s or 60s deciding whether a red light cap is worth trying: what the trials in women measured, where a cap fits next to minoxidil and your doctor's advice, what to look for in a device, and how to judge your own results with photos. For the causes of thinning at this stage, start with menopause hair loss: what changes long term, and for the pattern itself at any age, read our guide to female pattern hair loss.
Key takeaways
- Thinning after menopause is usually female pattern hair loss: a slowly widening part and a thinner crown. In one study of women aged 50 to 65, 52.2% had it, most of them at the mildest stage.
- In a 16-week trial of 47 women aged 18 to 60, hair counts in a small measured area rose by an average of 100 hairs with a 655 nm helmet vs 24 with a sham device (Lanzafame 2014).
- In four trials with 141 women and 128 men, a red laser comb beat a sham device at 26 weeks, and the gain didn't depend on age or sex (Jimenez 2014).
- Trials report results across ages rather than for postmenopausal women separately, and laser devices have a longer research record than LED-only caps.
- Topical minoxidil has the strongest evidence for female pattern hair loss. Red light fits best as an add-on to a plan you've discussed with your doctor.
- Rule out other causes first (thyroid, iron, vitamin D), then judge any routine over 4 to 6 months with photos taken in the same light.
What happens to your hair around menopause, and why it thins
The most common change is female pattern hair loss. Estrogen is thought to help hold hairs in their growing phase. Once it settles at a lower level, hairs that are sensitive to androgens grow for a shorter time and come back finer, cycle after cycle. You notice it as a part that looks wider in bright light, a crown that shows more scalp, or a ponytail that feels thinner than it did two years ago. The front hairline usually stays where it was.
It's very common. In a study of 178 postmenopausal women aged 50 to 65, 52.2% had female pattern hair loss, and nearly three quarters of those cases were the mildest grade (Chaikittisilpa 2022). Most women with it have normal androgen levels on a blood test, so normal results don't mean nothing is happening.
Not every change at this age is pattern thinning, though. Low iron, thyroid problems, a new medication, illness or stress can all cause shedding at any age, and they need a different plan. Ask your doctor to check ferritin, thyroid function and vitamin D before you judge any device. Our guide to blood tests for hair loss lists what to ask for, and if you're still having periods, even irregular ones, read perimenopause hair thinning first.
Start here: where red light fits
For female pattern hair loss, topical minoxidil has the largest body of evidence, and prescription options such as spironolactone are something a dermatologist may raise. Whether either suits you is a conversation for your doctor, and any change to a medicine is a decision for the two of you.
Red light is a different kind of option. It's a non-drug option you can use at home, and many women at this stage like that. We think of a cap as something you add to a plan, not something that replaces one. If you already use minoxidil, keep using it as your doctor advised; wear the cap first on a clean, dry scalp and apply minoxidil afterwards. For the two side by side, read red light therapy vs minoxidil.
What studies of red-light devices found in women
Three sets of placebo-controlled trials are especially relevant for women. Each compared a real device with one that looked the same but gave no useful light.
| Study | Who | Device / light | Schedule | Result vs sham |
|---|---|---|---|---|
| Lanzafame et al. 2014 (PubMed) | 47 women aged 18–60 with pattern hair loss; 42 completed | Helmet, 655 nm (21 lasers + 30 LEDs) | 25 min every other day, 16 weeks | Hair count in the measured area up 100.3 on average vs 23.9 with sham |
| Jimenez et al. 2014 (PubMed) | 141 women and 128 men in four trials | Red laser comb (9 or 12 beams for women) | 3 times a week, 26 weeks | Women: +20.2 and +20.6 hairs/cm² vs +2.8 and +3.0 with sham; gain independent of age and sex |
| Yoon et al. 2020 (PubMed) | 60 men and women aged 19–65 | Helmet, 655 nm, 2.36 mW/cm² | 16 weeks | +41.90 vs +0.72 hairs/cm²; hair thickness +7.50 µm vs -15.03 µm |
Scope: these trials tested specific helmets and combs, and at least two of the three devices used lasers. Hairs were counted in small marked areas, which is not the same as how full your hair looks in a mirror. None of the trials reported results for postmenopausal women separately. Results vary between people.
In plain terms: women using the real device ended up with more hairs in the measured spot than women using the fake one. The Jimenez trials are the most useful for this age group, because they found the gain didn't depend on age within the ages studied, so read these results as a guide rather than a promise.
What about LED-only caps?
Most of the evidence comes from laser devices or devices that mix lasers and LEDs. A 2021 meta-analysis of FDA-cleared home devices found the largest effect with laser-only devices and a smaller, still significant one with devices combining lasers and LEDs (Lueangarun 2021). Trials of LED-only caps are newer. In a 2025 trial of red and blue LED caps in adults aged 18 to 65, hair density rose by 28.5 hairs/cm² more than with a sham cap when the three active versions were pooled, although no single version reached significance on its own, and 91 of the 160 people randomized were left out of the final analysis (Thomas 2025). That's an encouraging early result. Our guide to LED vs laser for hair growth goes into more detail.
What to look for in a red light cap for women
Whatever you choose, ask the maker for three numbers. A brand that won't publish them is asking you to take its word for it.
- Wavelength in nm. The trials above used red light around 655 nm.
- Irradiance in mW/cm² at the scalp. This is how much light power reaches each square centimeter. Yoon 2020 reported 2.36 mW/cm². The number of LEDs doesn't tell you this.
- Dose per session in J/cm². Multiply irradiance by session length in seconds, then divide by 1,000. For example, 5 mW/cm² for 10 minutes (600 seconds) is 3 J/cm².
Then think about whether you'll actually use it. The trials asked people to use their device three or four times a week for four to six months. A cordless cap you can wear while you read or work is easier to keep up than a device you have to hold. Check that the lights cover your part and crown, because that's where thinning after menopause usually shows. A return window helps too: a 90-day window covers your week-8 and week-12 photo checks, so use it for an early read and keep judging up to the 16 to 26 weeks the trials ran.
Realistic expectations: what changes, and how long it takes
Expect small changes, slowly. Hair grows about a centimeter a month, and the trials measured at 16 to 26 weeks. If something changes, some people describe less shedding first, then hair that looks a little fuller along the part. A restored ponytail from ten years ago isn't a realistic goal. After menopause, holding steady is a real result too.
Some people notice a few more hairs in the brush in the first weeks of any new routine. This hasn't been well studied for light devices. If shedding is heavy, lasts more than two months or comes out in patches, see a doctor rather than waiting it out.
How to judge your own results
Use a camera, not memory. Our suggestion:
- Keep everything else steady. If you can, avoid starting a new shampoo, supplement or hair color at the same time as the cap, so there's one change to watch. Any medication changes are for your doctor to decide.
- Week 0: baseline photos before your first session.
- Week 8: a check that your routine is on track. Don't expect much yet.
- Week 12: compare with week 0. On a 90-day trial, this is your last check before the window closes.
- Week 16 to 26: compare again, matching the points where the trials measured.
The photo check
- Same room, same light. Window daylight at the same time of day. Flash off.
- Same angles. Your part from above, the crown from behind, and your hairline from the front.
- Same hair. Clean, dry, no product, parted in the same place. If you color your hair, note the date, because fresh color can make hair look fuller.
- Same distance. Mark a spot on the floor or ask someone to hold the phone at the same height.
Where a cap like Folliq's fits
As an example of a full spec sheet you can check against the studies, here are the published numbers for the Folliq red light cap:
| Spec | Folliq cap | What the trials in women used |
|---|---|---|
| Format | Cordless soft cap, 97 LEDs | Helmet (lasers + LEDs) or laser comb |
| Wavelength | Red 650–660 nm + near-infrared 850 nm | 655 nm red |
| Irradiance | About 5 mW/cm² at the scalp | 2.36 mW/cm² (Yoon 2020) |
| Session and dose | 10 or 20 min timer; about 3 or 6 J/cm² | 25 min every other day; about 67 J/cm² per session as stated in the paper (Lanzafame 2014) |
| Price and terms | From $199 (US list price), 90-day home trial (returns accepted used), 2-year warranty | Not applicable |
| Status | Cosmetic device, not FDA-cleared | Clinical research devices |
Near-infrared (850 nm) is a longer wavelength that reaches deeper into tissue, and some devices add it alongside red light. Where the cap fits: as a cosmetic add-on to a plan you've discussed with your doctor, worn 3 to 4 times a week. Hold it to the same checklist as any other cap.
Safety: who should check with a doctor first
Check with a doctor before you start if you take medicines that make skin more sensitive to light, if your scalp is red, sore or broken, or if you've had skin cancer on the scalp. Stop and talk to a doctor if your scalp becomes itchy, sore or irritated during use. Don't look straight into the LEDs. A hairline that recedes at the front and temples after menopause, especially with thinning eyebrows, needs a dermatologist soon, because it can be a scarring condition called frontal fibrosing alopecia. Sudden, patchy or painful hair loss also needs a doctor, not a device. See our page on safety and contraindications.
Frequently asked questions
Does red light therapy work for menopause hair loss?
Studies of red-light devices in women with pattern hair loss, the most common kind after menopause, found more hairs than sham devices after 16 to 26 weeks, and one large set of trials found the gain didn't depend on age within the ages studied. Expect modest changes and judge them with photos.
Is a red light cap safe for women over 50?
Two of the trials (Lanzafame 2014, Yoon 2020) reported no adverse events, and the Folliq cap's spec lists no noticeable warming of the scalp. Check with your doctor first if you take light-sensitizing medicines or have scalp conditions or a history of skin cancer on the scalp.
Can I use a red light cap with minoxidil?
Yes, many people do. Keep using minoxidil as your doctor advised, wear the cap first on a clean, dry scalp and apply minoxidil afterwards. Research on whether the combination adds extra benefit is mixed; our red light vs minoxidil guide covers it.
Does hormone therapy help hair after menopause?
Hormone therapy is prescribed for menopausal symptoms. A 2022 dermatology review concluded that the role of hormonal therapy for hair still needs more research (Kamp 2022), so treat your hair as a separate conversation with your doctor.
How long before I know if it's working?
Give it at least 4 months of use 3 to 4 times a week, and judge properly at around 6 months. Compare photos taken in the same light, from the same angles, at week 0, 12 and 16 or later.
The bottom line
Thinning after menopause is common and usually slow, which gives you time to rule out other causes and choose a plan. Studies of red-light devices in women found more hairs in a counted area than sham devices, and one set of trials found the gain held across the ages studied. Results are reported across ages rather than for menopause alone, and laser devices have the longer research record. If you add a cap, use it 3 to 4 times a week, keep the rest of your routine steady, and compare your week-0 photos with week 16 and again around week 26.
If you'd like to run that check yourself, you can try the Folliq Red Light Cap for 90 days and send it back, even used, within the trial if it isn't for you. For thinning in men, see our men's guide to red light for a receding hairline or crown.
Folliq products are cosmetic scalp-care products, not medical devices or medicines, and are not intended to diagnose, treat, cure or prevent any disease. The studies discussed here used clinical devices and preparations, which is why every Folliq product comes with 90 days to try it for yourself. If your hair loss is sudden, patchy or painful, see a dermatologist.
References
- Lanzafame RJ et al. The growth of human scalp hair in females using visible red light laser and LED sources. Lasers Surg Med. 2014;46(8):601-607. PubMed 25124964
- Jimenez JJ et al. Efficacy and safety of a low-level laser device in the treatment of male and female pattern hair loss: a multicenter, randomized, sham device-controlled, double-blind study. Am J Clin Dermatol. 2014;15(2):115-127. PubMed 24474647
- Yoon JS et al. Low-level light therapy using a helmet-type device for the treatment of androgenetic alopecia: a 16-week, multicenter, randomized, double-blind, sham device-controlled trial. Medicine. 2020;99(29):e21181. PubMed 32702878
- Lueangarun S et al. A systematic review and meta-analysis of randomized controlled trials of FDA-approved, home-use, low-level light/laser therapy devices for pattern hair loss: device design and technology. J Clin Aesthet Dermatol. 2021;14(11):E64-E75. PubMed 34980962
- Thomas M et al. Clinical safety and efficacy of dual wavelength low-level light therapy in androgenetic alopecia: a double-blind randomized controlled study. Dermatol Surg. 2025;51(4):416-421. PubMed 39679573
- Chaikittisilpa S et al. Prevalence of female pattern hair loss in postmenopausal women: a cross-sectional study. Menopause. 2022. PubMed 35357365
- Kamp E et al. Menopause, skin and common dermatoses. Part 1: hair disorders. Clin Exp Dermatol. 2022. PubMed 35796569