Alpha hydroxy acids (AHAs) help with the skin's exfoliation process by breaking down the "glue" that holds dead skin cells to the surface, which encourages the cells to turn over more quickly. There are many different types of AHAs that you can use, depending on your needs. You may have heard of mandelic acid, glycolic acid, lactic acid, ferulic acid and more. Out of all these different types, lactic acid is the most gentle and hydrating of AHAs, meaning it is an excellent choice for most skin types and is less likely to cause irritation. 

      AHAs are water soluble, meaning they are unable to penetrate through the skin’s natural oils. As a result, AHAs are used for exfoliating the surface of the skin and target dryness, dullness and the signs of aging such as fine lines and wrinkles.

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