Nanocarriers as Active Ingredients Enhancers in the Cosmetic Industry—The European and North America Regulation Challenges

The document reviewed the role of nanocarriers in enhancing active ingredients in the cosmetics industry, focusing on their ability to improve solubility, stability, and controlled release. Despite their benefits, challenges such as high costs, low shelf life, and potential toxicity were noted. Regulatory issues were significant, with the U.S. FDA recommending biosafety studies and post-market evaluations, while the EU maintained stricter legislation on nanomaterials. The lack of a global definition for nanomaterials hindered universal regulations. Various nanocarriers, including nanoemulsions, liposomes, and solid lipid nanoparticles, were explored for their potential to improve the delivery and efficacy of ingredients like antioxidants and retinoids. The document emphasized the need for safety assessments and harmonized regulations to ensure consumer safety and foster innovation in the cosmetic industry.