Protein peptide is recognized at home and abroad as the exclusive scavenger of oxygen free radicals, which has the function of anti-aging, can be rapidly absorbed by the body to regulate the deep metabolic process, and is an indispensable part of the beauty cosmetics and health care products. Protein peptide has the function of promoting bone formation, preventing osteoporosis, protecting gastric mucosa and anti-ulcer, as well as promoting cell division and repairing damaged skin, and it has the function of whitening skin, delaying aging, improving microcirculation, removing spots, removing wrinkles, shrinking pores, moisturizing and so on in cosmetology. Protein peptide at the same time there are side effects, some patients may take the skin itching, that is, the phenomenon of allergy, need to stop the drug in time. In addition, it is not recommended that pregnant women take it orally, otherwise it may not be conducive to the growth of the fetus. Breast enlargement patients are also not suitable to eat protein peptide, may not be conducive to the repair of breast enlargement. It is recommended that patients seek professional doctors to understand the role and side effects of protein peptides in order to ensure better efficacy.