20(S)- Ginsenoside Rh2 is isolated from the root Panax ginseng. It is a plant glycoside with a dammarane skeloton resembling a steroid skeleton. It has an anti-cancer proliferation, differentiation and chemopreventive effects in certain cancer cell types. 20(S)- Ginsenoside Rh2 is isolated from the root Panax ginseng. It is a plant glycoside with a dammarane skeloton resembling a steroid skeleton. It has an anti-cancer proliferation, differentiation and chemopreventive effects in certain cancer cell types. A plant glycoside with anti-cancer proliferation and chemopreventive effects