Mandelic acid is a type of gentle alpha hydroxy acid (AHA). It may help reduce acne, fine lines, and wrinkles and improve the appearance of uneven skin. As a person ages, skin renewal slows down, ...

Azelaic acid is a type of acid that's found in some grains like rye, wheat, and barley. It's naturally produced by Malassezia furfur (also known as Pityrosporum ovale), a yeast found on healthy skin.

Glycolic acid is a universal ingredient that works well for all skin types. It’s great for both seasoned skincare experts as well as newcomers to the world of active acids. While applying a type of ...