I first heard about Dr. Donaldson from my cousin. I couldn’t believe how much hair my cousin hair grown on her head and eyebrows specially. I had no doubt it would also work for me. I was RIGHT! I had “A LOT” of hair loss and I used to use powder to cover my scalp. I have enough hair growth to where I NEVER have to use that cover up powder any more. Than you Dr. Donaldson!