Ergothioneine in Scutellaria extract is a rare natural amino acid. It is also a strong antioxidant found in mushrooms and other fungi. It has a powerful scavenging effect on OH- and O-radicals, and its effect is better than Q10 and Idebenone. . Its molecular weight is smaller than the commonly used antioxidant peptides on the market, and it has better absorption and permeability. It easily penetrates into the deep layers of the skin and helps the skin to resist the oxidation of free radicals caused by the external environment such as ultraviolet rays. In 2004, the scientific community discovered that there is a transporter with ergothioneine on skin cells: OCTN-1, which can bring ergothioneine into cells to resist free radicals and protect cells, mitochondria and DNA.