WHAT IS IT?
Salicylic acid was originally derived from the bark of a willow tree and works by increasing moisture in the skin by softening/dissolving the substance holding the top layer of skin cells together.
WHAT DOES IT DO?
When treating skin conditions such as psoriasis and seborrheic dermatitis, salicylic acid acts as a keratolytic which loosens keratin, a protein that forms the structure of skin, therefore allowing thickened, scaly plaques of skin to shed more easily. Using salicylic acid in lotion helps to slough off dead skin, much like a traditional face scrub.
WHAT IS IT GOOD FOR?
Because it acts as a scale lifter, it helps to soften and remove psoriasis scales. It is a common and effective treatment for a wide variety of skin problems including rough or bumpy skin.