The name comes from the latin word 'Salix" Willow tree which is where salicylic acid (SA) is often derived from. It is common in many other plants including Wintergreen as well as some fruits and vegetables. Geography: wintergreen and willow are indigenous to the United States and Canada.
Used in Ancient Greece for the relief of pain, inflammation and fevers. Starting in the 20th century, it started to be used for the treatment of various skin conditions such as acne, psoriasis, warts, calluses, keritosis pilaris, and even dandruff. Later in the century it became common in skin peels to remove the top layer of dead skin cells and to smooth skin.