Dermatologists seem to agree that something in milk and dairy products may be linked to teen-age acne.But is it hormones and “bioactive molecules,” as a study in the Journal of the American Academy of Dermatology suggested, or is there something else?University at Buffalo dermatologist Harvey Arbesman, M.D., says there could be something else: Iodine. Arbesman, a UB clinical assistant professor of dermatology and social and preventive medicine, details his reasoning in a letter published in the “Notes and Comments” section of the current (December) issue of the journal.