Retinol and retinoid are similar, as retinol is one type of retinoid. While both are used in anti-aging products, most traditional skin care products use retinol. Retinoid is typically used for prescription products while retinol is a main ingredient in non-prescription products. They both have effects on the skin’s dermis layer, and you can safely use both types of products. However, using both topically at the same time can make your facial skin feel too dry.