If you spend time online, you may be asking, "What is salicylic acid?" Here, skincare experts explain everything there is to know about the ingredient.

For example, what is topical salicylic acid and what kind of effects can it have on your complexion? You may have seen salicylic acid listed as an ingredient in many over-the-counter skincare ...

For example, you may be wondering: Can I use salicylic acid daily? How long do results last? Are there any side effects? To answer these questions, InStyle tapped cosmetic chemist Shuting Hu ...