Betulin 70%, 90%, 98% Betulinic acid 50%, 90%, 98% Researches on betulins health benefits actually started out on the anti-HIV property of its derivatives, as early as 1998 and 2001, American and Japanese scientists discovered and studied the anti-HIV activity of betulin derivatives. according to their findings, several betulin-derived compounds feature anti-HIV properties. More studies on ...