Displaying 7 results of Retinol Impurities Retinol impurities refer to the presence of unwanted substances or contaminants in products containing retinol, a form of vitamin A. These impurities can have negative effects on the quality and efficacy of the product, as well as potentially causing skin irritation or other health concerns. It is important for manufacturers to carefully monitor and control the purity of their retinol products to ensure their safety and effectiveness for consumers.