Displaying 8 results of Adapalene Impurities Adapalene is a medication used to treat acne, but it can contain impurities that may affect its safety and efficacy. Adapalene impurities are typically other chemicals that are unintentionally present in the medication, such as residual solvents or by-products of the manufacturing process. It is important for pharmaceutical companies to conduct thorough testing and analysis of their products to ensure they meet regulatory requirements for impurity levels.