An essential part of any skin care routine is to help skin shed built-up surface layers of dead skin as it would if it were hydrated and healthy. Young skin on its own can exfoliate dead skin, but this changes as we grow older. A well-formulated alpha hydroxy acid or beta hydroxy acid exfoliant is the most non-irritating, gentlest way to do this. These types of products imperceptibly reveal the underlying hydrated, smoother, radiant skin.