Ergothioneine is a natural super antioxidant and a unique cell physiological protection agent. It has special functions such as scavenging high concentration of free radicals in the human body, preventing ultraviolet radiation damage, whitening, and anti-aging. Adding ergothioneine to skin care products can significantly slow down skin aging, lighten pigmentation, brighten skin, and increase skin elasticity. Therefore, many high-end skin care products use thioneine as an important whitening and anti-aging active ingredient. For example, Estee Lauder uses thioneine as the core ingredient of the Life Re-Newing Molecules™ formula, which is widely used in luxury pet platinum Series (Re-Nutriv) and other top product lines. Due to the lack of efficient synthesis technology, ergothioneine is expensive, and even high-end skin care products can only be added in small amounts. We use modern biotechnology to break through the pilot-scale synthesis process of high-purity thioneine, and the product quality is at the leading domestic level and internationally advanced level.