Works for women. Recommend trying it.
I’ve been using my Theradome helmet for several years, since my mid-50’s. Within about 3 months of starting, I noticed baby-fine hairs growing over the 2 spots where my hairline had started receding. 5+ years on, the baby-fine hairs still cover those spots, and I’ve had minimal additional recession. My hair looks very healthy, and my hair dresser was so impressed that she bought one, as did several of my friends. It only takes 20 minutes, and I use it about 4x per week, usually in the evening. I definitely recommend trying it.