SkinCell Pro Avoid those containing chemicals such as parabens, fragrance, mineral oil and alcohol. Glycolic Acid is an exfoliating agent and when the peel is applied to the skin it goes under the upper layers of the epidermis and removes the dead skin. As you age your body produces less of these two vital structural skin proteins leading to wrinkles and fine lines. Even so, many people forget about getting informed and end up with side effects and other problems.