Kiierr LLLT laser caps are clinically proven & FDA Cleared to promote thicker, fuller hair in both men and women. The Kiierr laser hair growth cap is a powerful, cutting-edge low-level laser device for the treatment of androgenetic alopecia (pattern baldness). The unit is inserted into the black cap that we provide or any hat or cap that you choose. A battery charger is included. In as little as 30 days you’ll start to see those frail follicles transforming into thick & healthy hair once again! Laser hair growth treatment is a revolutionary new option for those who suffer with laser cap for alopecia (hair loss based on genetics). The Kiierr technology is completely portable, and you can grow hair inconspicuously anywhere at any time: at home, at work, driving, running errands.