Acne Myths vs Evidence: Diet, Dairy, Toothpaste and More
Does dairy or chocolate cause acne? Does toothpaste or sun help? We grade 12 common acne claims by the strength of the evidence behind them.
Acne types
Acne type guides
Guides to hormonal, fungal and body acne, acne myths vs evidence and what acne is, plus when a deep cyst or look-alike rash needs a doctor.
5 guides Every guide lists its sources
Body Acne (Bacne): Causes and How to Treat It
Why acne shows up on your back, chest and shoulders, washes vs leave-on treatments, look-alikes to rule out, and when you need a prescription.
Fungal Acne (Malassezia Folliculitis): Signs and Treatment
Itchy bumps on your chest or back that all look alike? Fungal acne is a yeast infection, not acne. How to tell them apart and how doctors treat it.
Hormonal Acne in Adult Women: Signs, Causes and Treatment
Why adult women get jawline and chin acne, signs of a hormonal condition like PCOS, and how the pill, spironolactone and topicals are used.
What Is Acne? Causes, Types and When to Get Help
Acne starts in clogged hair follicles. What causes it, how to tell blackheads from cysts, what does and doesn't trigger it, and when to see a doctor.
Free acne tools
Acne treatment path quiz
Answer a few questions about your acne and get a suggested next step: over-the-counter care, adult telehealth, or an in-person dermatologist.
Ingredient conflict checker
Paste an ingredient list or pick products to flag common acne-routine conflicts and ingredients some people with acne prefer to avoid.
Benzoyl peroxide recall lookup
Check whether your benzoyl peroxide product was part of the 2025 recalls. Search by product name or the lot number on the package.