Collagen yog ib hom dawb, opaque, branchless fibrous protein, uas feem ntau muaj nyob rau hauv daim tawv nqaij, pob txha, pob txha mos, hniav, tendons, ligaments thiab cov hlab ntsha ntawm cov tsiaj.Nws yog ib qho tseem ceeb heev cov txheej txheem protein ntawm cov ntaub so ntswg sib txuas, thiab ua lub luag haujlwm hauv kev txhawb nqa org ...
Nyeem ntxiv