EGT[L-(+)-Ergothioneine] is the only known natural 2-thioimidazole amino acid (2-thio-imidazole). EGT has an absorption wavelength similar to that of DNA in the UV absorption range, which can effectively protect against UV damage. Hechen Bioworks has three R&D platforms for the preparation of engineering bacteria, the separation of fermentation products and the application of functional ingredients, which can produce 0.5% - 98% products of various specifications to meet the needs of different application scenarios such as food, medicine and cosmetics.