Ergothioneine, EGT is a naturally occurring amino acid with antioxidant activity. it has good photothermal stability and is not easy to be oxidized and decomposed. free radicals in the human body.It is a water-soluble cosmetic raw material and is easy to mix. Moreover, ergothioneine is non-toxic in epidermal cells, so the skin will not be irritated when used, and it has a very broad application prospect in the cosmetic industry. Ergothioneine is a good UV protectant that blocks UV damage to the skin and acts as a sunscreen. Ergothioneine can also scavenge high concentrations of