Bidenoside C is a flavonoid found in brazilian propolis, the first of its kind to be isolated from a herb of the genus Leech, and has anti-proliferative activity against cancer cells.

Bactenecin, bovine

β,β-Dimethylacrylalknin 是从 Arnebia nobilis Reichb.f 中分离出来的天然产物，可增加皮肤细胞中的胶原蛋白和外皮蛋白含量。