Black soybean hull extract Specification: 10%,25%,30% Appearance: Dark Purple Fine Powder Used part: hull Active ingredient: Anthocyanidins Test method: UV Main Function: 1.Improvement of Visual Sensation 2.Facial Whitening. Has the same interdiction ability to tyrosinase as kojic acid! 3. Improvement of Liver Function. 4.Anti-oxidant Activity 5. Improvement of Blood Circulation 6.Significant effect as a treatment of menopause syndrome.