HEALTH

If you’re feeling flaky, check with a dermatologist for a definite diagnosis. “Dandruff is uncommon in adolescents,” says Dr. Alexa Boer Kimball. “The problem could be psoriasis—red, scaly skin on the scalp, elbows and knees.” If dandruff is the culprit, try Head & Shoulders Intensive Treatment with pyrithione zinc, a turbo-charged ingredient that kills dandruff-causing fungus.

A dermo can also prescribe a mild steroid gel or lotion. Meanwhile, ban all black sweaters from your wardrobe.