Light-based hair care for anyone who wants thicker, denser-looking hair. Focused laser and full-scalp LED light support the growth phase of active follicles, in a simple routine of 20 to 30 minutes, a few times a week.
Support hair growth and density with light
What research says about laser light, hair counts and strand thickness.
What research shows
In a 16-week sham-controlled trial, a 655nm light helmet led to a substantially greater increase in hair counts than a placebo device.
Why it works
Light energy supports the follicle's growth phase, so more hairs stay in active growth at the same time, which is what makes hair look denser.
Relevant wavelengths
650nm red lasers deliver focused light to the follicle environment; LEDs add broad coverage. The more widespread the thinning, the more laser light you may want.
Read the guide: LED vs. Laser for Hair Regrowth · Red Light Hair Cap at Home: Questions People Ask
References: Lanzafame et al. 2014 · Jafari et al. 2024 (systematic review)
FAQ
Hair grows in slow cycles. Most consistent users notice a healthier-feeling scalp within the first couple of months and look for fuller, denser-looking hair after about 4–6 months.
Both use red light; lasers focus it and LEDs spread it. For noticeable thinning, the hybrid 7HW StrandPro combines both. For the most laser light across the whole scalp, choose the 7HW StrandElite. To start simply, the 7HW StrandAir is fully wireless.
Many people combine the two. Use your cap on a clean, dry scalp and apply topical products afterwards. See our combination guide, and ask your doctor before combining treatments.
