2. Ukhathalelo lolusu, i-collagen ilungile kulusu kukuba ikwazi ukunyamekela ulusu ngempumelelo, ubuhle, kuba i-collagen inomsebenzi wokondla ulusu, inokugcina ulusu luthambile, igcine ukufuma kwalo kunye nokukhanya okulula, ilungise ulusu olonakeleyo, iqinise ulusu ngempumelelo, imibimbi, igcine ukufuma;