Kiehl's Since 1851 Ferulic Brew Rejuvenating Facial Essence in Bloomington, MN

With ingredients brewed for 120 hours, this 99% natural formula with ferulic acid, lactic acid (Aha) and squalane provides powerful antioxidant protection to visibly smooth and even skin's texture and tone, reduce fine lines and leave skin with a healthy-looking glow. Kiehl's considers ingredients to be naturally derived if they retain more than 50% of their molecular structure after being processed from a natural source.