Most nutrient supplements are still safe, but there are some nutrient supplements that are harmful in excess, such as beta carotene, vitamin E, and vitamin A.

Therefore, inhibition of tyrosinase biosynthesis is the key to whitening. Vitamin C can inhibit the activity of tyrosinase, block the production of melanin, has certain antioxidant properties, and can restore the formed melanin to colorless melanin precursor, thereby improving dull skin and achieving a whitening effect.

It is an extraordinary year for the dietary supplements industry in 2020.The sudden outbreak of the COVID-19 has made consumers deeply aware of the importance of health, which has greatly promoted the development of the health care industry.