Ergothioneine(EGT) is an important active substance in human boday.Ergothioneine is obtained by multi fermentation of Hericium Erinaceum & Tricholoma Matsutake.Multi fermentation can increase the yield of L-Ergothioneine,which is a sulfur-containing derivative of the amino acid histidine,a unique stable antioxidant and cytoprotective agent,existing in the human body.Ergothioneine can be transferred inside mitochondria by the transporter OCTN-1 in skin keratinocytes and fibroblasts,thus playing the anti-oxidation and protection functions there. EGT is accumulated into different cellular compartments via its specific transporter OCTN-1,abundantly expressed in mitochondrial DNA is especially vulnerable to stress because unlike nuclear DNA,there are no histones to protect mitochondrial DNA.Reactive oxygen species,like superoxides O2- generated in the mitochondria by respiration,are directly scavenged by EGT.EGT presents in the cytoplasm also scavenges a variety of ROS and reactive nitrogen species.EGT absorbs UV radiation and prevents DNA breaks and mutations. Key Technical Parameters Appearance White Powder Assay 99% min. Loss on Drying 1% max. Heavy Metals(as Pb) 10 ppm max. Arsenic 2 ppm max. Lead 2 ppm max. Mercury 1 ppm max. E.Coli Negative Total Plate Count 1,000 cfu/g max. Yeast and Mold 100 cfu/g max. Applications: Anti-Aging products,sun care products,antioxidant products,skin protection,skin regeneration. Recommended Dosage:0.5~2%