Cosphagard® SA natural is a 100 % naturally sourced, COSMOS-approved salicylic acid produced from natural wintergreen oil through mild fermentation followed by a two-step purification process. Salicylic acid was traditionally sourced from willow trees and willow bark extract has been playing an important role in herbal medicine across many cultures, still being used in teas and other natural medicinal preparations to this day. Salicylic acid is a well-known active ingredient and listed preservative that has been applied for its antimicrobial, keratolytic, and anti-inflammatory properties for many years, particularly in products targeting acne and dandruff.
