PCA Skin Pigment Gel HQ Free (formerly Pigment Gel HQ Free - pHaze 13) features a hydroquinone-free formula that diminishes age spots and discoloration for a radiant complexion. An exfoliating complex of lactic, kojic and azelaic acids refine and smooth the skin while diminishing hyperpigmentation. Glutathione and tyrosinase inhibit melanin production to prevent new dark spots from forming.