Astaxanthin ndi keto carotenoid yotengedwa ku Haematococcus Pluvialis ndipo imasungunuka m'mafuta. Umapezeka kwambiri m’chilengedwe, makamaka mu nthenga za nyama za m’madzi monga shrimps, nkhanu, nsomba, ndi mbalame, ndipo umagwira ntchito yosonyeza mitundu. Zimagwira ntchito ziwiri pa zomera ndi ndere, kutengera mphamvu ya kuwala kwa photosynthesis ndi kuteteza. chlorophyll kuchokera kuwonongeka kwa kuwala. Timapeza carotenoids kudzera muzakudya zomwe zimasungidwa pakhungu, kuteteza khungu lathu kuti lisawonongeke.
Kafukufuku wapeza kuti astaxanthin ndi antioxidant wamphamvu yomwe imakhala yogwira ntchito nthawi 1,000 kuposa vitamini E poyeretsa ma free radicals opangidwa m'thupi. Ma radicals aulere ndi mtundu wa okosijeni wosakhazikika wokhala ndi ma elekitironi osalumikizana omwe amakhala ndi ma electron kuchokera ku maatomu ena. Kamodzi kamene kalikonse kamene kamayenderana ndi molekyulu yokhazikika, imasandulika kukhala molekyu yokhazikika yaulere, yomwe imayambitsa kusakanikirana kwa ma free radical mix. ma free radicals. Astaxanthin ili ndi mawonekedwe apadera a maselo komanso mphamvu yabwino kwambiri ya antioxidant.