Derma MD Pigment Cream Hydroquinone 4%, 1 oz The combined ingredients of Kojic (8%) , L- Arbutin and lactic acid to lighten dark spots and hyperpigmentation.This product also has Magnesium ascorbyl phosphate (Stabilized version of vitamin C) and Licorice Extract(Anti-irritant)with the ability to absorb UV rays. Works as an tyrosinase inhibitor. As a depigmenting agent, licorice extract is described as 75 times more effective than ascorbic acid. This product needs a prescription to purchase. This product is for our members or patients only.Please do not order if you are not our members or patients.