Ammonium Lactate 12% Moisturizing Lotion Description: Moisturizing Body Lotion helps hydrate, soften and exfoliate dry, rough skin. This skin smoothing lotion is specially formulated with 12% lactic acid neutralized with ammonium hydroxide for a pH of 4.5-5.5. Lactic acid is an alpha hydroxy acid and a natural humectant for the skin.