Can vitamin b5 be an effective treatment for acne on a 13-year-old?

Worth a try: It's non-toxic though the doses recommended for acne will involve a lot of pills and nobody's done a real study and there are anecdotes of people getting sick from. Being 13 is hard enough without disfiguring acne, and junior has a right to effective treatment. I begin most folks with topical Clindamycin with or without a retinoic acid derivative, moving to stronger stuff as appropriate. Good luck.