Astaxanthin yog keto carotenoid rho tawm los ntawm Haematococcus Pluvialis thiab yog rog-soluble. Nws tshwm sim nyob rau hauv lub ntiaj teb lom neeg, tshwj xeeb tshaj yog nyob rau hauv cov plaub ntawm cov tsiaj dej xws li cws, crabs, ntses, thiab noog, thiab plays lub luag hauj lwm nyob rau hauv cov xim rendering.Lawv ua si ob lub luag hauj lwm nyob rau hauv cov nroj tsuag thiab algae, absorbing lub teeb lub zog rau photosynthesis thiab tiv thaiv. chlorophyll los ntawm lub teeb puas. Peb tau txais carotenoids los ntawm kev noj zaub mov uas khaws cia hauv daim tawv nqaij, tiv thaiv peb cov tawv nqaij los ntawm kev puas tsuaj.
Cov kev tshawb fawb tau pom tias astaxanthin yog ib qho muaj zog antioxidant uas yog 1,000 npaug ntau dua li cov vitamin E hauv kev ntxuav cov dawb radicals hauv lub cev. Dawb radicals yog ib hom tsis ruaj tsis khov oxygen uas muaj cov hluav taws xob tsis sib xws uas muaj sia nyob los ntawm kev noj cov electrons los ntawm lwm cov atoms. Thaum ib tug dawb radical reacts nrog ib tug ruaj khov molecule, nws yog hloov dua siab tshiab rau hauv ib tug ruaj khov dawb radical molecule, uas pib ib tug saw cov tshuaj tiv thaiv ntawm dawb radical ob peb ua ke.Muaj cov kws tshawb fawb ntseeg hais tias lub hauv paus ua rau tib neeg aging yog cellular puas vim lub uncontrolled saw cov tshuaj tiv thaiv. dawb radicals. Astaxanthin muaj cov qauv molecular tshwj xeeb thiab muaj peev xwm antioxidant zoo.