ABSTRACTrn(A) LIDRISA MARDA (2006210107)rn(B) SOSOR BEBEK LEAF EXTRACT PEEL-OFF GEL MASK (Kalanchoe pinnata Pers.) PHYSICAL STABILITY AND ANTIOXIDANT ACTIVITY TESTSrn(C) ix + 118 pages; 27 tabels; 14 pictures; 27 attachmentsrn(D) Key word: Stability test, peel-off gel mask, sosor bebek leaf, antioxidant activity testrn(E) Sosor bebek leaf extract contains natural antioxidants such as Vitamin C …