Hydroxy Derma-Lac LotionEnviron's Derma Lac Lotion is an energizing, intensive moisturizing lotion, containing a special combination of alpha hydroxy acids, urea and glycerin, all scientically proven to help soften and smooth the appearance of even the roughest, driest skin. How to use After a bath or shower, mix this lotion with Body Oil and gently massage it into slightly moist skin until absorbed, morning and evening. Brief tingling of the skin may be experienced.