MD Formulations was the first company to license a patent on glycolic acid throughout the world. In 1992, MD Formulations was introduced to the international market. MD Formulations discovered that matching their formulations to the pH level of the skin is the key to developing a product with less risk of irritation. The patented glycolic compound is still highly effective but it is gentle and safe for those with more sensitive skin. The glycolic compound has the ability to resurface the skin, reducing fine lines and wrinkles as well as dark spots and other types of discoloration.