What is the FDA-approved topical product used to counter hair loss?

• A. Finasteride
• B. Minoxidil
• C. Biotin
• D. Ketoconazole

Answer: (B)

Minoxidil is the FDA-approved topical product used to counter hair loss. It works by widening the blood vessels in the scalp to improve blood flow and by extending the growth phase of hair follicles, which helps revive miniaturized follicles and stimulate new hair growth. It’s available over the counter in 2% and 5% solutions and as a foam for both men and women with androgenetic alopecia. Finasteride is a prescription oral medication that lowers dihydrotestosterone levels and is not a topical product. Biotin is a vitamin supplement and not a topical treatment proven to stop hair loss. Ketoconazole is an antifungal shampoo that treats scalp conditions; while it may support scalp health, it isn’t FDA-approved as a hair-loss treatment.