Over-the-counter (OTC) options mainly include benzoyl peroxide and salicylic acid-based products, although retinol, tea tree oil, glycolic acid and azelaic acid or other acids are available and great places to start.

Source: https://nationalpost.com/shopping-essentials/personal-care/best-acne-treatments-in-2022-according-to-a-top-canadian-dermatologist

You probably already know for its personalized skincare products, but did you know that when you select the custom formula for acne, it can include strong acne-fighting ingredients such as tretinoin, azelaic acid and niacinamide?

Source: https://stylecaster.com/beauty/how-to-get-tretinoin-online/