1 These example sentences are selected automatically from various online news sources to reflect current usage of the word 'minimalist.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors.
In the most basic terms, retinol is the whole vitamin A molecule, which is one of the best vitamins for your skin. Vitamin A is a potent antioxidant, and works to protect your skin from free radicals, generates cell growth, and repairs damaged cells.
The retinoids are a class of chemical compounds that are vitamers of vitamin A or are chemically related to it. Retinoids are used in medicine, primarily due to the way they regulate epithelial cell growth.here are three generations of retinoids: 1  First generation retinoids: which include retinol, retinal, tretinoin (retinoic acid, Retin-A), isotretinoin, and alitretinoin. 2  Second generation retinoids: which include etretinate and its metabolite acitretin. 3  Third generation retinoids: which include tazarotene, bexarotene and Adapalene.