Relightfull Hair Cap
Fuller-looking hair. 20 minutes a day.
- Whole scalp: crown, temples, hairline
- Wireless, wear it anywhere
- No pills, nothing to rub in
Shop Pay Installments
Pay in 4 interest-free payments of $75.00
- Choose Shop Pay at checkout.
- Pick "Pay in installments". Pay in 4 every two weeks.
- Quick eligibility check. It won't affect your credit score to check.
Payment options are offered by Affirm and are subject to an eligibility check. Options depend on your purchase amount, and a down payment may be required.
180‑day guaranteeFree US shipping1‑year warranty
- Order todayToday
- Ships—
- Arrives—
Wear it daily for 180 days. If you're not happy with how your hair looks, send it back for a full refund.
In the box
- The cap
- USB-C cable
- Quick guide
- 6‑month progress tracker
Specs
- LEDs
- 291: 97 red (660 nm) + 194 near‑infrared (850 nm)
- Modes
- Steady, Breath, 10 Hz pulse, 40 Hz pulse
- Brightness
- 3 levels
- Session
- 20 minutes, switches itself off
- Battery
- About 1 hour of light per charge, 2‑hour USB-C charge
- Weight
- 4.7 oz, fully wireless
- Fit
- Adjustable strap, any hair length
- In the box
- Cap, USB-C cable, quick guide, 6‑month digital progress tracker
- Warranty
- 1 year
- Trial
- 180 days
Why most hair routines fail
The best treatment is the one you actually keep doing.
Hair changes slowly, so anything that helps has to be done every day for months. That's where most options fall apart. Foams you have to rub in twice a day. Pills you'd rather not take. Bulky helmets that keep you sitting by an outlet.
The Relightfull cap is built to be the easy one. Put it on, press a button, and get on with your morning. Twenty minutes later it switches itself off.
20 minutes, anywhere
Your life doesn't stop. Neither does the light.
Inside the cap
291 lights. Your whole scalp, at once.
The LEDs sit all the way around the inside of the cap, so your crown, your temples and your hairline get light in the same session. No moving it around, no missed spots.
Both, every session. Red and near‑infrared light together, from one button.
- 660 nm redThe visible red glow. Works near the surface of your scalp.
- 850 nm near‑infraredYou can't see it. It reaches a little deeper. Your phone camera can, though: point it at the cap.
One button
Four modes. Three brightness levels.
Steady
Continuous light. Where everyone starts.
Breath
A slow, soft pulse in and out.
10 Hz
The light pulses ten times a second.
40 Hz
A faster pulse, forty times a second.
Not sure which to use? Start with Steady on level 1 and work up. The guide in the box walks you through it.
What to expect
Hair is slow. Here's the honest timeline.
- Weeks 1–4
Build the habit
Twenty minutes a day. Pick a slot, like breakfast or your evening show, and stick to it.
- Months 2–3
Keep going
Hair grows in slow cycles, so this is the stretch where staying consistent matters most.
- Months 4–6
Take a look
This is when most of our reviewers say they started to notice a difference. Results vary from person to person.
- Day 180
You decide
Happy? Keep going. Not happy? Send it back for a full refund.
Snap a photo of your hair on day one. The 6‑month progress tracker that comes with your cap makes it easy to compare.
From people wearing it
In their words.
"I was skeptical about spending $300 but after trying finasteride and dealing with the side effects I needed something else. 5 months in and I can see baby hairs growing along my temples. The cap is comfortable and being cordless means I actually stick to using it daily."
"As a woman dealing with thinning hair this has been incredible. 6 months of consistent use and my hair stylist noticed the difference. So glad I found this instead of going the medication route."
"The difference between month 1 and month 6 is undeniable. My temples have filled in significantly. The fact that it's wireless means I can wear it during my morning routine without being stuck by an outlet."
"Dude this thing actually works. I'm 8 months in and my hair looks fuller than it has in years. I use it every morning while I'm making breakfast. The wireless design makes it so easy to stick with."
"Solid product. I've been using it for about 4 months and definitely seeing some regrowth on my part line. Only giving 4 stars because I wish the battery lasted a bit longer but honestly it's not a huge issue. Would recommend."
"I almost bought the $4000 laser cap but found Relightfull and I'm so glad I did. 6 months later and my hair density has improved so much. Being able to move around while using it makes all the difference in actually using it every day."
How it stacks up
Easier to wear. Easier to afford.
| Feature | Relightfull cap | Laser caps & helmets | Foams & pills |
|---|---|---|---|
| Price | $300.00 once | Often $600+ | Every month, ongoing |
| Wireless, wear it anywhere | Yes | Some | n/a |
| Looks like a normal cap | Yes | Often a helmet | n/a |
| Red + near‑infrared light | Yes | Usually red only | No light |
| Nothing to swallow or rub in | Yes | Yes | Daily |
| 180 days to try it | Yes | Varies | No |
How simple is it?
Put it on. Press once. That's it.
- Put it on. Adjust the strap. Works over any hair length.
- Hold the button for a second and a half. It turns on. Short presses step through the 3 brightness levels.
- Go about your day. No cord to stay near.
- It stops at 20 minutes. Charge it with the USB-C cable when it runs low.
Zero risk to you
Six months to see it for yourself.
- 180‑day money-back guarantee. Hair takes time, so we give you time. Wear it daily, and if you're not happy, send it back for a full refund.
- 1‑year warranty. If the cap stops working, we replace it.
- Free US shipping on every order.
Before you buy
How long until I see a difference?
Hair grows slowly, so think in months, not weeks. Most of our reviewers mention noticing a change somewhere around months 4 to 6 of daily use. Results vary from person to person, which is exactly why you get 180 days to decide.
Is red light just hype?
Fair question. Red and near‑infrared light have been studied for hair for years under the name low-level light therapy (see the research on PubMed). It isn't magic and it doesn't work the same for everyone. Daily use is what counts.
Does it work for women too?
Yes, it's made for anyone with thinning hair. The cap fits any head and works over any hair length.
How is it different from other red light caps?
Many caps use one kind of light. Ours uses red and near‑infrared together: 97 red and 194 near‑infrared LEDs, 291 in all. It's fully wireless, has 4 modes, and comes with a 180‑day trial.
Will people know I'm wearing it?
It looks like a regular cap. The red glow only shows under the brim when it's on.
How long does the battery last?
About an hour of light per charge, which is three 20‑minute sessions. A full charge takes about 2 hours over USB-C.
Is it safe? Does it get hot?
It's LED light, not a laser and not a heater, so it doesn't get hot. Some people notice a little extra shedding in the first few weeks. Talk to your doctor first if you have a scalp condition, are pregnant, or take medication that makes you sensitive to light.
Can I use it with my current routine?
Most people wear it on clean, dry hair. If you use other hair products or treatments, check with your doctor about combining them.
What's the progress tracker?
A simple digital tracker emailed to you with your order. Log your sessions and photos so you can see how things change over 6 months.
What if it's not for me?
You have 180 days. Contact us and we'll walk you through the return and refund you in full.
How do I reach a person?
Use the Contact page or the chat button on this page. A real person replies within 24 hours.
Twenty minutes a day. Starting tomorrow morning.
Wireless. 291 LEDs. 180 days to see how your hair responds.
180‑day guarantee · Free US shipping · Pay in 4 with Shop Pay
The Relightfull cap is a wellness device. It is not intended to diagnose, treat, cure or prevent any disease. Results vary. Talk to your doctor before use if you have a scalp or medical condition, are pregnant, or take photosensitizing medication. Reviews are from verified buyers and reflect their own experience.