... in the sun. The plant bears small red berries from which the herbal extract is produced. It is ... HPLC Schizandrins 2-9% HPLC Pharmacological functionThe lignans isolated from the drug (schizandrin, schisandrol) are liver-protective in effect ... . Vitamin C Lignans: Dibenzo[a, c]cyclooctene derivatives, including schzandrine A to C, schizandrol A and B, schizantherine A and B, gomisins D to J, K1 to K3, ...