Retin-A, or topical tretinoin, is sometimes used as a combination therapy with minoxidil for androgenic alopecia. It’s important to use this type of medication under the guidance of your doctor. In some circumstances, tretinoin can actually cause hair loss. Some people who have used it at home report that topical retinol creams, serums, and lotions may make hair loss worse.
According to practitioners of traditional Chinese medicine, hair health is tied to two things: kidney energy and the blood, which nourish the hair. The solution: acupuncture and Chinese herbs. While there isn't a lot of hard science to back this up, Maureen Conant, a TCM practitioner at Full Bloom Acupuncture in Seattle, says that she's seen women's hair stop falling out and then gradually regenerate after a few months of weekly treatments.