Salicylic Acid

The scale dissolves off the surface, and there's no hair-growth signal in it anywhere.

Also called 2-hydroxybenzoic acid, o-hydroxybenzoic acid, Beta Hydroxy Acid (BHA)

Who it's forAny man with flakes on his collar who's also watching his hairline go.

The item

Three squares: proven in human trials. Two: a strong signal. One: early human data. Striped: the trials disagree.

Emergency: call 911.

I am not a doctor. This is not medical advice. This is self-education. Talk to a physician who has your history before you change anything.