This article was originally published with the title “Synthesis of Salicylic Acid” in SA Supplements Vol. 12 No. 292supp (August 1881), p. 4661 doi:10.1038/scientificamerican08061881-4661dsupp ...

Salicylic acid is a topical skincare ingredient used to treat conditions, like acne, warts, and psoriasis. Here, dermatologists explain how to use it in your skincare routine.