Golden Oyster Mushroom, belonging to the Pleurotaceae family and Pleurotus genus, is also known as the Elm Oyster Mushroom, Golden Top Mushroom, Jade Emperor Mushroom, or Golden Mushroom. Its cap ranges from straw yellow to bright yellow and is an edible mushroom with a delicious texture, rich in protein, vitamins, minerals, and has been found to contain a high amount of ergothioneine.

Ergothioneine is a naturally rare amino acid that the human body cannot synthesize on its own and must be obtained from food. Ergothioneine has a stable structure and is easily absorbed and utilized. Its unique biological properties allow it to be enriched in mitochondria and are widely applied in various fields such as functional food, health supplements, and beauty products.