Hair-growth LED & laser devices

Hair-growth devices are helmets, caps, headbands and combs that shine red light on the scalp. We compare device type, light source, diode count, wavelengths, session times, warranty and guarantee terms, prices and FDA status, when available.

LED devices use light-emitting diodes, which spread light over a wider area. Laser devices use laser diodes, which produce a narrower, more focused beam. Some devices use both. More diodes, more wavelengths or a higher price don't by themselves mean better results.

Thinning hair and hair loss have many causes, some of them medical, so see a dermatologist before buying a device.

"FDA-cleared" means the FDA cleared the device for its labelled use. It isn't FDA approval, and it isn't a promise that the device will work for you. Results aren't guaranteed. Any results usually take months of consistent use, and brands' money-back guarantees have conditions, so read them before you buy. GlowSpec makes no claim that any device treats hair loss.

HigherDOSE

Red Light Hat
from $449
Price checked Nov 1, 2026
FDA-cleared
Type
Hat (baseball cap)
Light source
LED
Diodes
120
Wavelengths
650 nm
Session
10 min daily for 16 weeks, then 3–4× a week
Prices & specs →
iRESTORE

Essential
from $799
Price checked Nov 1, 2026
Brand says cleared
Type
Helmet
Light source
Lasers + LEDs
Diodes
120
Wavelengths
655 nm
Session
25 min every other day
Prices & specs →
Capillus

PRO
from $1699
Price checked Nov 1, 2026
FDA-cleared
Type
Cap
Light source
Laser diodes
Diodes
272
Wavelengths
650 nm
Session
6 min daily
Prices & specs →
iRESTORE

Elite
from $2699
Price checked Nov 1, 2026
FDA-cleared
Type
Helmet
Light source
Lasers + LEDs
Diodes
500
Wavelengths
625, 655, 680 nm
Session
12 min daily
Prices & specs →