Zinc Pyrrolidone Carboxylate Zinc (PCA) nibintu byinshi kandi byingirakamaro bikunze gukoreshwa muburyo bwo kuvura uruhu.Imiterere yihariye ituma yiyongera cyane mubicuruzwa byinshi byita ku ruhu, kuva ku isuku na tonier kugeza kuri serumu, moisurizeri, ndetse ...
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