Milliard 60/40 Lactic Acid-Calcium Lactate Fine Powder &ndash; Food Grade & NON-GMO &ndash; Enrich Foods with Calcium &ndash; 1 Pound Acids derived from foods, like lactic acid, are known as alpha hydroxy acids, or AHAs, which are a popular ingredient in anti-aging topical skin care products, because theyre safe to apply to our skin when mixed with other cosmetic ingredients. AHAs like lactic acid applied topically and regularly to your skin help reduce the appearance of aging, and they can be an especially good remedy against fine lines, wrinkles and other signs of premature aging from sun damage.