Taw qhia raws li peb lub hnub nyoog, peb cov tawv nqaij inevitably poob nws cov hluas ci thiab elasticity. Cov kab nplua, wrinkles, thiab sagging daim tawv nqaij tau muaj txiaj ntsig zoo dua, ua rau peb saib laus dua li peb xav. Qhov zoo, kho kom zoo nkauj niaj hnub muaj ntau txoj kev daws teeb meem los tawm tsam cov cim no ntawm kev laus. Ib qho kev daws teeb meem
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