Collagen yog ib yam khoom tseem ceeb heev hauv peb lub cev, uas muaj nyob rau hauv cov ntaub so ntswg xws li tawv nqaij, pob txha, nqaij, leeg, pob txha mos thiab cov hlab ntsha.Nrog rau lub hnub nyoog nce, collagen tau maj mam noj hauv lub cev, yog li qee qhov haujlwm ntawm lub cev yuav tsis muaj zog.Xws li...
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