RedLight Innovation Hat Pro: our best overall pick

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On this page

1. What light does the Hat Pro use?
2. What comes in the box?
3. How much does the Hat Pro cost, and what is included?
4. What results can you expect?
5. When should you buy something else?
6. Questions
7. Sources

Best overall

RedLight Innovation Hat Pro

£372

• TripleWave
• 80% coverage
• £372

Our top pick. TripleWave: 125 diodes at 615, 635 and 650 nm, plus 450 nm blue. A washable 54–62 cm cap, about 80% coverage, a 500 mW panel, 15 minutes, £372.

Key specs

Price

£372

Availability

Available

Form

Hat with a lift-out panel

Wavelengths

615, 635, 650 nm red, plus 450 nm blue

Light source

LED

Count

125 diodes

Output

500 mW panel

Session

15 minutes

Coverage

About 80%

Fit

54–62 cm

One-off price, or 3 interest-free Shop Pay payments. No subscription. Specs from the RedLight Innovation product page. Source

View the Hat Pro

What light does the Hat Pro use?

TripleWave is 125 diodes at 615, 635 and 650 nm, for different depths in the scalp, plus 450 nm blue for a flaky or oily scalp.¹ There is no near-infrared. The emitters are LEDs, not lasers.

Coverage is about 80% of the scalp, versus about 50% for a laser cap. Panel output is 500 mW. A session is 15 minutes.

What comes in the box?

A soft everyday cap. The panel lifts out, so the cap is washable. The fit is 54–62 cm. The controller is USB-C and rechargeable, with a 15-minute timer, and the box includes a travel case. It runs cool.

¹ Specs from the RedLight Innovation product page.

How much does the Hat Pro cost, and what is included?

£372 once, or 3 interest-free payments via Shop Pay. No subscription. Laser caps are listed at about £700 to over £2,300, at prices checked in August 2026 on the product page. The men’s hair-check page lists minoxidil at £25 a month, or £900 over three years, and prescriptions at £20 a month, or £720.

The 90-day money-back offer is conditional. It needs the suitability quiz, progress photos and a review by the brand’s trichologist. The warranty is one year if you register within 7 days. Delivery is free UK next-day from Kent. Support is by email and WhatsApp. Free consultation with Celestine Gitau, Institute of Trichologists no. 583, on the consultation page.

The RedLight study

RedLight Innovation’s own study followed 6 volunteers, 3 men and 3 women, for 90 days. They used the hat for 15 minutes a day. The brand says the study finished in August 2024, with scalp microscopy before and at day 90, and it reports 0 adverse reactions. Participants 01 to 03 are the men and 04 to 06 are the women. This is the brand’s write-up. It does not describe a control group, and it is not an independent or controlled trial. Read the study page.

The originals on the study page are about 200 pixels wide. These are the same files at twice that size, without sharpening.

What do buyers say on the brand’s website?

Rated 4.8/5 from 503 reviews on RedLight Innovation’s website (Okendo, October 2026). These are customer reviews from the brand’s website, not reviews by this guide.

The lights are extremely bright and the quality of the hat is probably the best I have felt ever. It feels really well made and comfortable to wear, and you can tell a lot of thought has gone into the design.

I'm not sure if its hugely noticeable but I feel it has definitely helped

I mixed my treatment with 5% minoxidil foam everyday… These are my progress pics after 85 days and I'm so happy with the way my hair is looking already.

What results can you expect?

The microscopy above is the brand’s own 90-day write-up of six volunteers. It does not describe a control group. It is not the same evidence as the sham-controlled studies.

Research suggests red light may help with pattern hair loss when people use it consistently over several months. The stronger studies compare a real device with a sham and count hairs at about 16 to 26 weeks. They do not all agree on the size of the change, and they were not run on this hat. Wavelengths around 630–680 nm overlap 635 and 650 nm. The detail is on does red light therapy work.

The quotes above are customer reviews from the brand’s website. Some of them also mention minoxidil. The 4.8 from 503 reviews is the shop’s Okendo rating. This guide does not award stars.

If the loss is sudden or patchy, see a GP before you buy. The NHS asks for that conversation before a commercial clinic. A hat does not replace a conversation about minoxidil where that medicine is appropriate. See red light or minoxidil.

When should you buy something else?

Choose the CurrentBody helmet if you want a rigid full-head shape and you can spend £649.99 and wait for stock. Choose Beauty Pie if £332 is the budget and the cap is back in stock. Choose HigherDOSE if a cordless 10-minute cap matters more than a published fit range.

Product photos

Common questions

Is the RedLight Hat Pro red and near-infrared?

It lists 615, 635 and 650 nm red, for different depths in the scalp, and 450 nm blue for a flaky or oily scalp. It does not list near-infrared.

Does it cover the whole scalp?

About 80% of the scalp in a session, versus about 50% for a laser cap. It is a soft cap, not a rigid helmet. Panel output is 500 mW.

How much does it cost, and what is included?

£372, as a one-off purchase, or 3 interest-free payments via Shop Pay. The 90-day money-back offer needs the suitability quiz, progress photos and a trichologist review. The warranty is one year if you register within 7 days. Delivery is free UK next-day from Kent.

Will it regrow my hair?

Research suggests red light may help with pattern hair loss when people use it consistently over several months. Those studies were not run on this hat. The brand’s own write-up follows six volunteers for 90 days and does not describe a control group. A change, if it comes, takes months.

Related questions

• How much is the CurrentBody hair helmet in the UK?
• How much is the HigherDOSE red light hat in the UK?
• How much is the Beauty Pie LED hair cap?
• What wavelength should a hair hat use?
• Does red light therapy regrow hair?

Sources

1. RedLight Hat Pro product page — £372, TripleWave wavelengths, 125 diodes, 500 mW, about 80% coverage against about 50% for a laser cap, 15 minutes, 54–62 cm, Shop Pay.
2. How it works
3. RedLight Innovation: the 90-day study — The brand’s own write-up of 6 volunteers, 15 minutes a day, finishing August 2024. Microscopy before and at day 90. 0 adverse reactions reported.
4. RedLight Innovation: 90-day money-back guarantee — Suitability quiz, progress photos and a trichologist review.
5. RedLight Innovation warranty — 1-year warranty if you register within 7 days.
6. RedLight Innovation shipping — Free UK next-day delivery from Kent.
7. RedLight Innovation trichologist consultation — Free consultation. The brand lists Celestine Gitau, Institute of Trichologists no. 583.
8. RedLight Innovation hair check page — The brand’s comparison: minoxidil £25 a month (£900 over three years) and prescriptions £20 a month (£720).
9. RedLight Innovation customer reviews — 4.8/5 from 503 reviews on the brand’s site, Okendo, October 2026.
10. RedLight Innovation contact — Email and WhatsApp support.
11. Perez and colleagues, laser and LED therapy in alopecia
12. NHS: Hair loss

Keep reading

• CurrentBody LED Hair Growth Helmet review CurrentBody LED Hair Growth Helmet review: £649.99, 120 red LEDs at 620–660 nm, two UK sizes, and a 31-person study summary.
• HigherDOSE Red Light Hat review HigherDOSE Red Light Hat review: £449, cordless, 120 LEDs at 650 nm and 5 mW/cm², with a 10-minute session and a 28-person user survey.
• Beauty Pie All Systems Grow LED cap review Beauty Pie All Systems Grow LED cap review: £332, 125 LEDs at 655 nm, 20 mW/cm², and a footnote that this device was not independently tested.
• How to choose a red light therapy hat How to choose a red light therapy hat in the UK: wavelength, dose, coverage, fit and what kind of evidence the brand is actually showing you.
• Does red light therapy work for hair loss? Does red light therapy work for hair loss? What sham-controlled trials and meta-analyses found for pattern hair loss, and what they did not study.