Hair Growth Serum

Hair Growth Serum

 167 Reviews

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Product Information

A plain, matte black cap with clinical-grade red light therapy built directly into the inner lining. You wear it like any other hat. Twenty minutes a day. That's the protocol.

No pills. No prescriptions. No topicals. No daily mess. No dependency.

Just light — 660nm red and 850nm near-infrared, the two wavelengths studied for over a decade for hair regrowth — delivered directly and evenly across your entire scalp through 300 LED light beads built into the crown of the cap.

What's Included

300 LED light beads covering the full interior of the crown

660nm + 850nm dual wavelength — red light at the surface, near-infrared penetrating deep into the follicular layer where growth begins

Even scalp coverage — front hairline, temples, crown, and vertex all treated simultaneously

Automatic 20-minute timer — shuts off at the end of each session so you can't overuse it

USB charging — standard cable, no proprietary dongles

Lightweight at 140g — comfortable enough to wear while working, reading, or unwinding

10Hz + 40Hz pulse modes — dual frequency targeting both cellular regeneration and scalp stress relief

How To Use

  1. Ensure your hair is clean, dry and product-free — no oils, no residue
  2. Hold the power button for 4 seconds to turn on the device
  3. Place the cap on your head and adjust for comfort
  4. Wear it for 20 minutes while you do literally anything else
  5. The cap shuts off automatically when the session ends
  6. Use 3–4 days per week for best results

That's the whole protocol. No mess. No mirror time. No ritual that reminds you you're losing something.

What To Expect

Week 1–2 — Reduced shedding for most users. You'll notice fewer hairs in the drain, on the pillow, in the brush. For some, there's a brief shedding phase early on as weak hairs release to make room for new growth. This is normal. It's the old making way for the new.

Week 3–4 — Your scalp starts to feel different. Less irritation, less oil buildup, healthier look and feel. Early vellus hairs (thin baby hairs) start appearing in previously thinning spots. Still subtle — you'll see them in good bathroom lighting before anyone else notices.

Week 5–7 — Visible density improvement starts building. The new baby hairs thicken up. Widening parts begin to close. The thinning crown looks less exposed. This is where most people take their first real progress photo and finally see the difference.

Week 8–12 — Real regrowth. Fuller hairline. Noticeably denser crown. Hair that's thick enough to style. This is when the comments start — from your partner, your stylist, your coworkers. The "wait, did you do something different?" moment.

After 12 weeks — Most users drop to 3–4 maintenance sessions per week to preserve and continue building on results.

Red light therapy works with consistency. If you can commit to 20 minutes a day, 3–4 times a week, for 12 weeks — you will see what this cap can do.

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Hair Growth Serum

Hair Growth Serum

 4.5 out of 5 stars

FULL SCALP COVERAGE

20 MIN TREATMENT

RESULTS IN 12–16 WEEKS

TRUSTED FOR HAIR GROWTH

FULL SCALP COVERAGE

20 MIN TREATMENT

RESULTS IN 12–16 WEEKS

TRUSTED FOR HAIR GROWTH

FULL SCALP COVERAGE

20 MIN TREATMENT

RESULTS IN 12–16 WEEKS

TRUSTED FOR HAIR GROWTH

FULL SCALP COVERAGE

20 MIN TREATMENT

RESULTS IN 12–16 WEEKS

TRUSTED FOR HAIR GROWTH

FULL SCALP COVERAGE

20 MIN TREATMENT

RESULTS IN 12–16 WEEKS

TRUSTED FOR HAIR GROWTH

FULL SCALP COVERAGE

20 MIN TREATMENT

RESULTS IN 12–16 WEEKS

TRUSTED FOR HAIR GROWTH

FULL SCALP COVERAGE

20 MIN TREATMENT

RESULTS IN 12–16 WEEKS

TRUSTED FOR HAIR GROWTH

FULL SCALP COVERAGE

20 MIN TREATMENT

RESULTS IN 12–16 WEEKS

TRUSTED FOR HAIR GROWTH

FULL SCALP COVERAGE

20 MIN TREATMENT

RESULTS IN 12–16 WEEKS

TRUSTED FOR HAIR GROWTH

FULL SCALP COVERAGE

20 MIN TREATMENT

RESULTS IN 12–16 WEEKS

TRUSTED FOR HAIR GROWTH

Hair Growth Cap Before & Afters

  • Visibly thickens hair - Sarah M.

    "I could see my scalp through my part every single day. By week 10
    I stopped looking for it — because it was gone."

  • Fuller hair root to tip - Linda R

    "My hair is thicker, my ponytail actually has volume now, and the shedding that used to terrify me in the shower has slowed down dramatically."

  • Confidence I thought I'd lost for good - Maria T.

    "I spent years trying to hide what was happening to my hair. This cap gave me something back that I didn't think was possible anymore."

1 3

Improve hair condition, density and thickness

The Red Light Therapy Hair Growth Cap is powered by a dual-wavelength system of 660nm red light and 850nm near-infrared — two clinically studied wavelengths that work at different tissue depths to address hair loss from the inside out.

Together, these wavelengths:

  • Calm scalp inflammation, reduce excess oiliness, and restore hydration — creating the clean, balanced environment your follicles need to thrive
  • Strengthen hair at the structural level, improving resilience and reducing breakage for hair that doesn't just grow — it stays
  • Reactivate dormant hair follicles and extend the active growth phase, visibly reducing shedding and increasing density over consistent use

Full-coverage red light therapy — built for real results

Designed for complete, consistent scalp coverage, the Hair Growth Cap features 300 LED light beads with a convex optical design that concentrates light in a straight line — reaching follicles 1–3mm below the scalp surface, where growth actually begins.

With dual pulse modes (10Hz and 40Hz) and a built-in 20-minute auto-shutoff, every session is optimized and protected from overtreatment. Weighing just 140g, it sits comfortably hands-free — so you can use it while working, reading, or unwinding. No clinic. No appointment. No compromise.

Proven Results

41%

Increase in hair density after 8 weeks of use

93%

Of users report visible hair improvement

85%

See results within 12–16 weeks

Expert Opinion - Robert Finney

"As a Board-Certified Dermatologist, the two most important factors when evaluating any LED device for hair loss are wavelength precision and energy output. The dual-wavelength system — 660nm red light targeting the scalp surface, combined with 850nm near-infrared penetrating deeper into the follicular layer — is the combination that actually moves the needle for my patients dealing with thinning and hormonal hair loss."

Your questions, answered

Do I need to prepare my scalp before using the Hair Growth Cap?

Ensure your hair is clean, dry and product-free before each session.

How do I use the Hair Growth Cap?

Step 1: Conduct a sensitivity test before first use.
Step 2: Ensure your hair is clean, dry and product-free.
Step 3: Take a 'before' photo of the area you wish to improve.
Step 4: Place the cap on your head and adjust for comfort.
Step 5: Hold the switch for 4 seconds to turn on the device.
Step 6: Sit back and relax. The device will automatically turn off after 20 minutes.

How long does it take to see results?

Follow the recommended plan of 3–4 sessions per week, 20 minutes each, for a minimum of 12–16 weeks. Depending on your hair growth cycle, initial improvements may become visible from week 6 onwards.

Which is better, laser or red light therapy for hair growth?

Although both laser and LED use red light to support scalp health and energise follicles, they work differently. Laser delivers a focused, high-intensity beam at a single wavelength, while LED therapy — like the Hair Growth Cap — uses multiple wavelengths (660nm red light + 850nm near-infrared) to cover a larger scalp surface area at two tissue depths simultaneously. This means broader coverage, deeper follicular penetration, and no risk of concentrated heat damage. For most people experiencing diffuse hair loss, LED is the more practical, safer, and equally effective choice.

Can I use the Hair Growth Cap alongside other hair growth treatments?

Yes. Red light therapy can be used alongside other hair growth treatments. Always follow the instructions for each product and consult a healthcare professional if you're using prescription treatments.

Is red light therapy safe?

Yes. Red light therapy is non-invasive and safe for most people. Side effects are rare and typically mild — temporary warmth or tingling during use. If you have light-sensitive skin or take medications that increase photosensitivity, consult a doctor before use.

How often should I use the Hair Growth Cap?

For best results, use the cap 3–4 times per week for a minimum of 12–16 weeks. Each session lasts 20 minutes, and consistency is key. Once visible results are achieved, you can reduce frequency for maintenance.

Testimonials

  • ★★★★★

    New growth I wasn't expecting

    I started losing density after menopause and it just kept getting worse. I ordered this mostly out of desperation. Sixteen weeks in and I have new baby hairs all along my part that weren't there before. My hair isn't what it was at 35 but it's heading in the right direction and that means everything to me.

    Patricia W.

  • ★★★★★

    My part is finally closing in

    I've been self-conscious about my hairline for over two years. I kept styling around it, avoiding certain lighting, turning down photos. After 14 weeks with the cap I pulled my hair back for the first time in I don't know how long. My husband noticed before I even said anything. Worth every penny.

    Karen M.

  • ★★★★★

    I almost gave up on my hair

    A bald patch the size of a coin appeared out of nowhere. I was devastated. I tried oils, supplements, everything. Eight weeks into using this cap consistently and that patch is filling in with new growth I can actually feel. I keep touching it because I still can't believe it.

    Diane R.

  • ★★★★★

    My part looks normal again

    My part had been widening for three years and nothing I tried made a difference. I was skeptical but the 30-day guarantee pushed me to try. Twelve weeks later my part is visibly narrower and my hair feels thicker at the root. My stylist asked what I had changed. That said everything.

    Michelle T.