Topic
Ingredients
Evidence-based guides to acne-fighting active ingredients (salicylic acid, benzoyl peroxide, adapalene, azelaic acid, niacinamide and more), including how they work, how to use them and side effects.
Start here
IngredientsSalicylic Acid vs Benzoyl Peroxide: Which Is Better for Acne?Salicylic acid unclogs pores, so it suits blackheads and whiteheads; benzoyl peroxide kills acne bacteria, so it suits red, inflamed spots. Benzoyl peroxide has…All 10 guides
A–Z · every clinical claim linked to its source
IngredientsAdapalene (Differin) for Acne: How It Works and How to Use It
IngredientsAzelaic Acid for Acne: Evidence, Dark Marks and Pregnancy Safety
IngredientsBenzoyl Peroxide for Acne: Strengths, Evidence and Benzene Facts
IngredientsNiacinamide for Acne: What Small Trials Show and What to Expect
IngredientsRetinol vs Retinoids for Acne: Potency, Evidence and Irritation
IngredientsSalicylic Acid for Acne: How It Works and What the Evidence Says
IngredientsSpironolactone for Acne: Evidence, Side Effects & What to Ask
IngredientsSulfur for Acne: How It Works and What the Evidence Says
IngredientsTea Tree Oil for Acne: What the Evidence Really Shows