Can you use benzoyl peroxide with salicylic acid?
You can use both, but layering them often leads to dryness and irritation. Use one in the morning and the other at night.
Why
There's no known chemical conflict between them, but both are drying. FDA labeling rules for these OTC products require a warning that irritation and dryness are more likely when another product of this type is used at the same time, and that you should use only one at a time if irritation occurs. Both are OTC drug ingredients in the US (salicylic acid in some products), so each label's directions come first.
How to use them
Use benzoyl peroxide in the morning and salicylic acid at night, starting each once a day. If your skin becomes irritated, use just one until it settles.
Benzoyl peroxide and BHA are regulated as an OTC drug active in some products in the US. The directions on the product's label come first, and Dermo doesn't recommend specific drug products.
Sources
- 121 CFR 333.350 - Labeling of acne drug products · Electronic Code of Federal Regulations (eCFR), 2016
- 2Beta Hydroxy Acids · U.S. Food and Drug Administration, 2022
General cosmetic information, not medical advice. Written with AI assistance from the sources above; updated October 2026.