Dermatologists have a name for it: the cosmetic-aisle carousel. A patient arrives after spending $200 on biotin capsules, caffeine scalp serums, and thickening shampoos —
Read MoreDermatologists have a name for it: the cosmetic-aisle carousel. A patient arrives after spending $200 on biotin capsules, caffeine scalp serums, and thickening shampoos —
