Definition of "betulin" []

• A naturally abundant triterpene, commonly isolated from the bark of birch trees, that can be converted to betulinic acid. (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "On top of this, it contains anti-cancer properties such as betulin and betulinic acid."
• "Chaga contains betulin, a precursor to betulinic acid, which has been shown to inhibit the cancer-promoting enzyme topoisomerase."
• "Recent clinical studies have verified that red alder contains betulin and lupeol, compounds shown to be effective against a variety of tumors"