This is the original, natural form of nature's Salycilic Acid. As stated by Wikipedia, "Salicylic acid (from Latin salix, willow tree, from the bark of which the substance used to be obtained) is a monohydroxybenzoic acid, a type of phenolic acid and a beta hydroxy acid. In addition to being a compound that is chemically similar to but not identical to the active component of aspirin (acetylsalicylic acid), it is probably best known for its use in anti-acne treatments."
OhSudz now uses therapuetic grade Willow Tree Bark Extract in their Acne Zapper formula. This is one of the best formulas you can use to zap and rid acne, overnight. Made in a base of pure grain alcohol, organic camphor, Tea Tree and Lavender Essential Oils, and now Willow Tree Extract. This is an all natural, hard working formula. Take a look at our products at our etsy store, and see customer reviews.