Cos de BAHA Lactic Acid serum 30ml (LS), What does lactic acid do for skin? Lactic acid brightens, smooths, and evens skin, while also making it look firmer It helps reduce the appearance of fine lines, wrinkles
Lactic acid is a hydrating alpha hydroxy acid (AHA) commonly derived from milk, but there are alternative vegan sources
Don’t use it on days you use retinol since both are potent ingredients Alternate between the two to avoid irritation