Caffeic acid

Caffeic acid (CAS 331-39-5) is a naturally occurring hydroxycinnamic acid found in coffee, fruits, and many plant-derived extracts. It is also referenced under the names trans-caffeic acid, NSC 57197, and AKOS B004050. No E-code designation applies to this substance.

In personal care formulations, caffeic acid functions as a UV absorber by capturing and dissipating UV radiation through its conjugated double-bond system, reducing photodamage to both the product and skin. In food and pharmaceutical applications, it acts as an antioxidant by donating hydrogen atoms to free radicals, interrupting oxidative chain reactions and extending shelf life or protecting sensitive active compounds.

Caffeic acid is supplied as a light yellow to greenish-yellow powder suitable for cosmetic, food-grade, and pharmaceutical research applications. It falls under REACH registration requirements within the EU (EC 206-361-2, HS code 29182990). Buyers should confirm grade specifications and certificate of analysis requirements directly with our technical team prior to ordering.