Salicylic acid (2-hydroxybenzoic acid) is a white solid first isolated from the bark of willow trees (Salix spp.), from which it gets its name. It also occurs as the free acid or its esters in many ...

As a highly effective chemical exfoliant, salicylic acid is easily one of the most important ingredients for oily and acne-prone skin—and even helpful for people with combination skin ...

Its unique structure enables it to slip through layers of sebum and dead skin cells, breaking apart the build-up that clogs pores and ignites inflammation. And salicylic acid doesn’t stop at ...

His father suffered from rheumatism but salicylic acid caused him to vomit. Hoffman looked for a solution and found one by altering the acid’s structure. He did this through a process known as ...