Glossier has added a new product to their skincare line. The Universal Pro-Retinol is the latest product from Glossier. It is designed to be used on all skin types. To smoothen the skin, ingredients such as stevia extract or mondo grass root have been added. Glossier suggests using this product once to twice a week at night. Glossier recommends using this retinol once or twice a week at night after washing your face with your favorite cleanser.