Nano encapsulated antioxidants are antioxidants that have been enclosed within nanometer-scale carriers. These carriers can be made from various materials, such as liposomes, polymers, and dendrimers, and serve to protect the antioxidant compounds from degradation, enhance their bioavailability, and control their release. This technique leverages the principles of nanotechnology to improve the efficacy of antioxidants in various applications, including food preservation, pharmaceuticals, and cosmetics.