The salicylic acid in the product comes from the Salix Alba (Willow) Bark Extract, also known as salicin. Human cells can produce their own salicylic acid from salicin - giving the body the "ingredients" to make its own acne antidote helps to ensure that the product stays effective, since the active form of salicylic acid in a product can degrade over time or with exposure to air, bacteria, etc.
answered 2 years, 11 months ago
sometimes they have a separate ingredient list for active vs inactive..
answered 3 years, 3 months ago
Maybe .5% isn't enough to actually count as an ingredient.
answered 4 years, 3 months ago
"-Free and Encapsulated Salicylic Acid"
This is the first thing listed under "Active Ingredients".
answered 4 years, 9 months ago