Chlorogenic acid 10%, 20%,95%, 98%, 99% Chlorogenic acid 10%, 20%,95%, 98%, 99% Usage: Chlorogenic acid, an ester of caffeic acid and quinic acid, long known as an ... , away from direct sun-light. Shelf life: 2 years. Contents supply: 10%, 20%,95%, 98%, 99% Botanical Source: the leaf of ...