Astaxanthin
Natural astaxanthin is the strongest antioxidant found in nature so far, and its antioxidant activity far exceeds that of existing antioxidants.
There are generally three biological sources of natural astaxanthin: waste from the aquatic product processing industry, Phaffiarhodozyma, and microalgae (rhodococcus vulgaris). Among them, the astaxanthin content in waste is low, and the extraction cost is high,