Real dermatology advice, written for real people. Evidence-based acne care, treatment guides, and expert insights.

Does biotin cause acne? High-dose B7 may compete with vitamin B5, but the evidence is thin. Here's what's known, who should be careful, and what to do.

LED light therapy may improve inflammatory acne as an add-on treatment. Learn how blue and red light differ and what at-home devices can realistically do.

Some birth control methods can worsen acne. Learn why breakouts happen and how to manage them with your dermatologist and contraceptive prescriber.