Glupa Glutathione + 24’k gold Perfect Combination Whitening Lotion 300ml: Dermatologist Tested. Whitens in 7 days! Which whitens better, Glutathione or 24’k gold? Finally the two most powerful antioxidants and skin whitening agents have come together in one breakthrough product, Glupa. Thatâ€™s one powerful combination giving you twice the anti aging and skin whitening results like never before. It take two to have a healthy, beautiful, young and white skin. Glutathione and 24’k gold ¦only in Glupa Perfect Combination! Comes in Passionate Love scent that leaves you feeling fresh all day. Also formulated rosemary and jasmine concealing effect.