Ectoin CAS 96702-03-3, also known as Ectoine, is a multifunctional active that has been extensively studied for its ability to protect the skin from environmental stressors. Derived from extremophiles, Ectoin has evolved as a survival molecule, allowing these organisms to thrive in harsh conditions. When applied to the skin, Ectoin forms a protective barrier that protects the skin from UV radiation, pollution and other external aggressors. This makes it an ideal ingredient for anti-pollution and anti-aging skin care formulas.