Thicker, Fuller Hair. No Pills. No Surgery. Just Light.

Red light therapy is FDA-cleared, clinically proven, and used by dermatologists worldwide to regrow thinning hair — without the side effects of drugs or the $10,000+ price tag of a transplant. Now you can do it at home with medical-grade devices from Valo Red Light.

Shop Hair Regrowth Devices →
FDA-Cleared
Medical-Grade
Designed by Dr. Roosta
Zero Side Effects Reported in Clinical Trials
HSA/FSA Eligible

You're Not Imagining It. And You're Not Alone.

It starts small. A few extra hairs on the pillow. A wider part line. A little more scalp showing under the bathroom lights. Then one day you see a photo of yourself from behind — and your stomach drops.

0M+

Americans affected by hair loss

0M

Men experiencing hair loss

0M

Women experiencing hair loss

0%

Of men by age 35 with noticeable thinning

0%

Of women by age 50 with visible hair loss

$0-15K

Average cost per hair transplant session

But here's what nobody talks about: the current solutions all come with a catch.

Finasteride (Propecia)

Side effects include sexual dysfunction, depression, and brain fog. FDA warning issued in 2025 flagged persistent side effects that can last months or years after stopping.

Minoxidil (Rogaine)

Works for some, but requires twice-daily application forever. The second you stop, the hair loss comes back.

Hair Transplant Surgery

The average FUE procedure costs $8,000–$15,000 per session — and many people need two.

What if there was a way to regrow hair that was clinically proven, had zero reported side effects, and cost a fraction of a single transplant consultation? There is. And it's been hiding in plain sight.
Before
After
Before
After

The Science of Regrowth — Without a Single Side Effect.

Red light therapy — also called low-level light therapy (LLLT) or photobiomodulation (PBM) — uses specific wavelengths of red and near-infrared light to stimulate hair follicles at the cellular level.

When these wavelengths reach your scalp, they trigger a chain reaction inside every hair follicle:

→

Mitochondrial Activation

Red light energizes the mitochondria inside your hair follicle cells, boosting ATP (cellular energy) production — giving weakened follicles the fuel they need to grow again.

→

Anagen Phase Reactivation

Hair follicles cycle between growth (anagen), rest (telogen), and shedding (catagen). Red light therapy reawakens dormant telogen follicles and pushes them back into active growth.

→

Increased Blood Flow

PBM triggers nitric oxide release and vasodilation — delivering more oxygen, nutrients, and growth factors to the scalp. More blood flow = healthier, thicker hair.

→

Reduced Follicular Inflammation

Chronic low-grade inflammation around hair follicles accelerates miniaturization and thinning. Red light reduces inflammatory markers that damage follicles.

→

Prolonged Growth Phase

PBM doesn't just restart growth — it extends the anagen phase so each hair grows longer and thicker before entering the rest cycle.

This isn't a shampoo or a supplement hoping to work. It's a medical treatment modality with decades of peer-reviewed research — and the FDA cleared it for hair loss treatment in 2007.

The Research Doesn't Lie. Here's What the Clinical Studies Found.

Study 1

63% Increase in Terminal Hair Count (RCT)

A multicenter, double-blind, randomized controlled trial tested LLLT on 44 women with pattern hair loss over 17 weeks.
View full results
The Study:
A multicenter, double-blind, randomized controlled trial (Friedman et al., 2017) tested LLLT on 44 women with pattern hair loss. Participants used an LLLT device at home for 30 minutes every other day for 17 weeks.
The Results:
63.67% increase in terminal hair count from baseline in the LLLT group — compared to just 12.48% in the placebo group (p<0.001).
Zero adverse events were reported.
Source: Friedman et al., "Low-Level Light Therapy and Hair Regrowth," Published RCT, 2017.
Study 2

LLLT Matches Minoxidil — Without the Side Effects (RCT)

A single-blind RCT compared LLLT head-to-head against 5% topical minoxidil in 91 men over 6 months.
View full results
The Study:
A single-blind randomized controlled trial (2021–2022) compared LLLT head-to-head against 5% topical minoxidil in 91 men with androgenetic alopecia over 6 months.
The Results:
Both groups showed statistically significant increases in hair density from baseline. At 6 months, the minoxidil group averaged 134.6 hairs/cm² and the LLLT group averaged 130 hairs/cm² — with no statistically significant difference between the two groups.
The key difference? The LLLT group had zero systemic side effects.
Source: "Low-level light therapy versus topical 5% minoxidil in the management of androgenetic alopecia in males," Journal of Dermatology, 2024.
Study 3

12-Month Long-Term Trial — +25 Hairs/cm² & 15% Thicker (2026)

A 48-week prospective multicenter trial — the longest LLLT hair study to date — followed 68 patients using a helmet-type LLLT device.
View full results
The Study:
A 48-week prospective multicenter trial (Shin et al., 2026) — the longest LLLT hair study to date — followed 68 patients (51 men, 17 women) using a helmet-type LLLT device three times per week for 12 months.
The Results:
Hair density increased from a baseline of 99.2 to 124.2 hairs/cm² (a gain of +25 hairs/cm², p<0.0001).
Hair shaft thickness increased by approximately 15% (from 65.1 μm to 74.9 μm, p<0.0001).
Global photographic assessment showed visible improvement in 59% of participants. Over 85% reported satisfaction with outcomes. Zero device-related adverse events in the entire 12-month study.
Source: Shin et al., "Long-Term Efficacy and Safety of Low-Level Laser Therapy for Androgenetic Alopecia," Dermatologic Therapy, January 2026.
Study 4

Hair Count Up 39% in Just 16 Weeks (RCT)

A double-blind RCT tested a helmet-type LLLT device on men with androgenetic alopecia over 16 weeks.
View full results
The Study:
A double-blind randomized controlled trial (Lanzafame et al., 2013) tested a helmet-type LLLT device on men with androgenetic alopecia. Participants used the device every other day for 16 weeks.
The Results:
The LLLT group experienced a 39% increase in hair count over 16 weeks compared to baseline.
The sham (placebo) group saw minimal change.
Source: Lanzafame et al., "The growth of human scalp hair mediated by visible red light laser and LED sources in males," Lasers in Surgery and Medicine, 2013.
Study 5

LED Equally Effective as Laser — Good News for Home Devices

A systematic review and meta-analysis of FDA-approved home-use LLLT devices (7 RCTs, 607 participants) compared laser diode versus LED-based devices.
View full results
The Study:
A systematic review and meta-analysis of FDA-approved home-use LLLT devices (7 RCTs, 607 participants) compared laser diode versus LED-based devices.
The Results:
Both laser and LED light sources produced statistically significant increases in hair density. The meta-analysis found an overall standardized mean difference (SMD) of 1.27 for LLLT vs. sham — indicating a large, consistent treatment effect.
Critically, the analysis confirmed that LED-based devices were equally effective at photobiomodulation as laser diodes — meaning high-quality LED panels like Valo deliver the same clinical benefit.
Source: "A Systematic Review and Meta-analysis of RCTs of FDA-Approved Home-use LLLT Devices for Pattern Hair Loss," Journal of Clinical and Aesthetic Dermatology.
Study 6

Systematic Review — All 7 RCTs Positive, Zero Side Effects

A systematic review analyzed all published RCTs on LLLT for male and female pattern hair loss — screening 298 articles down to 7 qualifying RCTs.
View full results
The Study:
A systematic review (Gentile & Garcovich, 2024) analyzed all published RCTs on LLLT for male and female pattern hair loss — screening 298 articles down to 7 qualifying RCTs.
The Results:
Every single RCT reported a positive effect of LLLT on hair regrowth. Not one trial reported negative results. And not one trial reported any side effects.
The review concluded that LLLT represents a safe, effective, non-invasive treatment for pattern hair loss in both men and women.
Source: Gentile & Garcovich, "The Effectiveness of Low-Level Light/Laser Therapy on Hair Loss," Facial Plastic Surgery & Aesthetic Medicine, 2024.

The Longest LLLT Hair Study Ever Conducted

And the Results Keep Getting Better

Published January 2026 in Dermatologic Therapy | 68 patients | 48 weeks

Start
12 weeks
24 weeks
36 weeks
48 weeks

0%

Increase in hair density

📈

Cumulative improvements

Hair density kept climbing month after month. Unlike drugs that plateau, improvements were cumulative.

👥

Both men and women

Improvements were consistent across both sexes and all severity levels — from early thinning to advanced hair loss.

⭐

85%+ satisfaction

Not just measurable results — results people could see and feel in the mirror.

✓

Zero adverse events

12 months of consistent use. 68 patients. Not a single device-related side effect reported.

These findings support incorporating LLLT into routine clinical management of AGA.

If the science is good enough for peer-reviewed dermatology journals, it's good enough for your bathroom.

VALO vs. Traditional Treatments

How Red Light Therapy Stacks Up Against Every Other Option

Finasteride Minoxidil Hair Transplant Valo Red Light
Avg. Annual Cost $300–$900/yr $200–$600/yr $8,000–$15,000+ (one-time) One-time purchase
Side Effects Sexual dysfunction, depression, brain fog Scalp irritation, unwanted facial hair Surgical risks, scarring, swelling None reported in clinical trials
FDA Status FDA-approved (with warnings) FDA-approved (OTC) N/A (surgical) FDA-cleared
Time Commitment Daily pill, indefinitely Twice daily application, indefinitely Surgery + 12-month recovery 10–20 min, 3–4x/week
Works for Women? No (contraindicated in pregnancy) Limited Limited Yes — men AND women
Requires Prescription? Yes No Yes (consultation) No
Can Combine with Other Treatments? Limited Yes Yes Yes — enhances all other treatments
Results if You Stop? Hair loss resumes Hair loss resumes Permanent (for transplanted hairs) Maintenance sessions recommended

Finasteride

Avg. Annual Cost $300–$900/yr
Side Effects Sexual dysfunction, depression, brain fog
FDA Status FDA-approved (with warnings)
Time Commitment Daily pill, indefinitely
Works for Women? No (contraindicated in pregnancy)
Requires Prescription? Yes
Can Combine with Other Treatments? Limited
Results if You Stop? Hair loss resumes

Minoxidil

Avg. Annual Cost $200–$600/yr
Side Effects Scalp irritation, unwanted facial hair
FDA Status FDA-approved (OTC)
Time Commitment Twice daily application, indefinitely
Works for Women? Limited
Requires Prescription? No
Can Combine with Other Treatments? Yes
Results if You Stop? Hair loss resumes

Hair Transplant

Avg. Annual Cost $8,000–$15,000+ (one-time)
Side Effects Surgical risks, scarring, swelling
FDA Status N/A (surgical)
Time Commitment Surgery + 12-month recovery
Works for Women? Limited
Requires Prescription? Yes (consultation)
Can Combine with Other Treatments? Yes
Results if You Stop? Permanent (for transplanted hairs)

Valo Red Light

Avg. Annual Cost One-time purchase
Side Effects None reported in clinical trials
FDA Status FDA-cleared
Time Commitment 10–20 min, 3–4x/week
Works for Women? Yes — men AND women
Requires Prescription? No
Can Combine with Other Treatments? Yes — enhances all other treatments
Results if You Stop? Maintenance sessions recommended

Simple. Consistent. 10–20 Minutes. That's It.

The Protocol:

Use your Valo device on your scalp for 10–20 minutes per session, 3–4 times per week, on non-consecutive days. Clinical trials used similar protocols (20 min, 3x/week, every other day) with consistent results.

For Best Results:

  • Position the device 1–6 inches from your scalp
  • Part hair to allow maximum light contact with the skin
  • Be consistent — results are cumulative and typically become visible at 12–16 weeks
  • Continue use for maintenance after achieving desired results

Pro Tip:

Combine with a dermatologist-recommended topical like minoxidil for enhanced results. Clinical studies show combination therapy outperforms either treatment alone.

What to Expect:

Weeks 1–4

Cellular changes begin at the follicular level. You may not see visible changes yet — but the process has started.

Weeks 4–8

Some users report reduced shedding and early signs of new vellus (baby) hair growth.

Weeks 8–16

Visible improvements in hair density, thickness, and coverage. This is when most clinical trials measure their primary endpoints.

Weeks 16–48

Continued improvement. The 12-month Shin et al. study showed results kept getting better for the entire year.

The Right Device for Your Hair. Backed by Real Science.

Best for Targeted Scalp Treatment
Valo Spark Valo Red Light

Valo Spark

$299.99

The Spark's focused treatment area is perfect for targeting specific zones of thinning — crown, hairline, temples, or part line. Delivers clinical-grade red (660nm) and near-infrared (850nm) wavelengths at the power densities used in published studies.

  • FDA-Cleared & Medical-Grade
  • Dual-wavelength: 660nm + 850nm
  • Treat your scalp in focused 10–20 minute sessions
  • HSA/FSA Eligible
Shop Now
Best for Broader Scalp Coverage
Valo Beam

Valo Beam

$499.99

The Beam's wider coverage area makes it ideal for diffuse thinning across the top of the scalp. Same medical-grade wavelengths, compact and easy to position for consistent scalp sessions.

  • FDA-Cleared & Medical-Grade
  • Dual-wavelength: 660nm + 850nm
  • Broader treatment area for diffuse thinning
  • HSA/FSA Eligible
Shop Now
Best for Full-Body + Scalp Treatment
Valo Blaze Valo Red Light

Valo Blaze

$1,299.00

If you want hair regrowth AND the full-body benefits of red light therapy — skin rejuvenation, muscle recovery, joint pain relief, better sleep — the Blaze does it all. The largest treatment area in the Valo lineup covers your scalp and body in a single session.

  • FDA-Cleared & Medical-Grade
  • Dual-wavelength: 660nm + 850nm
  • Full-body panel — scalp, face, and body
  • HSA/FSA Eligible
Shop Now
Best for Face + Hairline
Glow Face Mask

Glow Face Mask

$299.99

The Glow Mask targets the face and frontal hairline — ideal for addressing a receding hairline while simultaneously treating skin for anti-aging benefits. Two treatments in one.

  • FDA-Cleared & Medical-Grade
  • Targets hairline and face simultaneously
  • Perfect add-on to Spark, Beam, or Blaze
  • HSA/FSA Eligible
Shop Now

🏥 All Valo devices are HSA/FSA eligible — so your health savings account can cover the cost.

Your Hair Isn't Gone. Your Follicles Are Waiting.

Here's what the science tells us: most thinning hair isn't dead — it's dormant. The follicles are still there, miniaturized and waiting for the right signal to start growing again.

Red light therapy sends that signal.

It reactivates dormant follicles. Extends the growth phase. Increases blood flow to the scalp. And it does it all without a single pill, a single side effect, or a single surgical incision.

Over 80 million Americans are dealing with hair loss right now. The hair loss treatment market is worth over $4 billion in the U.S. alone — and most of that money goes to drugs with side effects and procedures that cost more than a used car.

There's a better way. And the clinical evidence is overwhelming.

Start Regrowing Your Hair Today

Your Questions. Answered.

Yes. Multiple double-blind, randomized controlled trials — the gold standard of clinical evidence — have demonstrated statistically significant increases in hair count, density, and thickness with red light therapy. A 2024 systematic review found that every published RCT on LLLT for hair loss reported positive results with zero side effects.
Most clinical trials show measurable results at 16–24 weeks of consistent use. Some users report reduced shedding as early as 4–8 weeks. The longest study (48 weeks) showed results kept improving for the entire 12-month period.
Red light therapy has the strongest evidence for androgenetic alopecia (male and female pattern hair loss) — the most common type of hair loss worldwide. It has also shown promise for telogen effluvium (stress-related hair loss) and diffuse thinning. It is unlikely to regrow hair from completely dead follicles or scarring alopecia.
In every published randomized controlled trial on LLLT for hair loss, zero device-related adverse events have been reported. This stands in stark contrast to finasteride (sexual dysfunction, depression) and minoxidil (scalp irritation, unwanted hair growth).
Absolutely. Clinical studies show that combining LLLT with minoxidil produces better results than either treatment alone. Red light therapy is an excellent complement to any existing hair loss regimen.
Most laser caps and combs on the market cost $700–$3,000 and are designed ONLY for hair. Valo gives you medical-grade red light therapy that you can use for hair regrowth AND for dozens of other clinically studied benefits — skin rejuvenation, pain relief, muscle recovery, sleep improvement, and more. One device. Unlimited benefits.
Yes. All Valo devices are FDA-cleared, medical-grade photobiomodulation devices. LLLT itself has been FDA-cleared for hair loss treatment since 2007.
Power output matters. Many consumer-grade devices don't deliver the irradiance (power density) needed to actually reach the hair follicle. Valo devices are medical-grade, designed by Dr. Roosta, and deliver the wavelengths and power densities consistent with those used in published clinical trials.
While most insurance plans don't cover red light therapy devices directly, all Valo devices are HSA/FSA eligible — meaning you can use pre-tax health savings dollars to purchase them.

Scientific References

Our claims are backed by peer-reviewed research and clinical trials.

  1. 1

    Friedman et al. (2017). Multicenter double-blind RCT — 63.67% increase in terminal hair count with LLLT vs. 12.48% sham. Published RCT, Capillus device trial.

  2. 2

    Shin et al. (2026). "Long-Term Efficacy and Safety of Low-Level Laser Therapy for Androgenetic Alopecia: A 12-Month Prospective Trial." Dermatologic Therapy. +25 hairs/cm², 15% thickness increase, 85%+

  3. 3

    Lanzafame et al. (2013). "The growth of human scalp hair mediated by visible red light laser and LED sources in males." Lasers in Surgery and Medicine. 39% increase in hair count over 16 weeks.

  4. 4

    Gentile & Garcovich (2024). "The Effectiveness of Low-Level Light/Laser Therapy on Hair Loss." Facial Plastic Surgery & Aesthetic Medicine. Systematic review — all 7 RCTs positive, zero side effects.

  5. 5

    Pillai & Mysore (2022). "Role of Low-Level Light Therapy (LLLT) in Androgenetic Alopecia." Journal of Cutaneous and Aesthetic Surgery. 15-study review — LLLT as effective as minoxidil; combination therapy superior.