Cysteine ????yog ib qho ntawm cov khoom ntawm glutathione, uas tuaj yeem ua rau kev laus ntawm cov dawb radicals. Cysteine ??tuaj yeem hloov pauv los ntawm methionine hauv lub cev, thiab cov txheej txheem no yuav tsum muaj kev koom tes ntawm vitamin B6. Lub caij no, thaum noj ua ke nrog selenium thiab vitamin E, cysteine ??tuaj yeem ua rau nws cov txiaj ntsig siab tshaj plaws. Tsis tas li ntawd, cysteine ????muaj cov sulfur ntau, uas pab tshem tawm cov tshuaj lom los tiv thaiv cov hlwb.