Panthenol is a widely used vitamin B nutritional supplement. It is widely used in medicine, food, feed, cosmetics and other fields. It is widely used in skin pharmaceuticals, skin care, and hair cosmetics. D-panthenol is a B vitamin, commonly known as provitamin B5, and is the dextrorotary isomer of panthenol. D-panthenol can be converted into pantothenic acid when entering the human body, and then synthesize coenzyme A, promote the metabolism of protein, fat, and sugar in the human body, and protect the mucous membranes and hair luster on the skin surface.