Glabridin has many biological functions such as regulating the synthesis and activity of iNOS under high-glucose levels, significantly inhibiting free radicals generated during metabolism in the body, and protecting against oxidation-sensitive biomacromolecules (LDL, LDL, DNA) and cell walls. It is a natural product isolated and purified from the roots of Glycyrrhiza glabra L. with whitening and anti-aging activity.