Gamma Hydroxy™ 1 step solution for clear, radiant skin Skin resurfacing cream – the ultimate in skin renewal Gamma Hydroxy™ is a powerful one-step solution to uneven skin tone, clarity and acne scarring. The continual skin renewing action of powerful Hydroxy Acids work 24 hours a day like a “time released” peel to gradually resurface the skin for a clearer, more youthful complexion.