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The two are often believed to be interchangeable, but the main difference is that retinol is eventually converted into retinoic acid. Retinol is a natural form of vitamin A, while Retin-A is derived from retinoic acid, a synthetic derivative of vitamin A, and considered pharmaceutical.
Practically speaking, retinol (and their derivatives) can be included in over-the-counter creams and serums, whereas a retinoid can only be prescribed by your doctor. They do amazing things for your skin. Overall, this category is packed with anti-aging benefits. âThey stimulate the production of new skin cells,â Dr Gross says.