Glabridin PT90

Glabridin,natural whiterners extracted from G. Glabra. Their main ingredient glabridin has a higher inhibitity force towards tyrosinase than arbutin, kojic acid, vitamin C and hydroquinone; it can still inhibit the activity of Tyrosinase Related Protein (TRP-2)dopachrome , so that they have rapid, highly effectual lightening and depigmental effect. Further more, they are still scavenger similar to SOD, and also possessing such effects as: anti-spasm, anti-inflammation, anti-sensitizing anti-oxidizing and anti-quasi-estrogen. SPECIFICATION Assay HPLC Not less than ≥90.0% Appearance Powder Color off-white Solubility Transparency Heavy Metais Pb ≤20ppm Arsenic (As) ≤2ppm Loss on Drying ≤3.0% Flavone test Positive