1, It contains abundant amino acids and microelements. 2, Make skin to be soft 3,Widely used in cosmetic industry Standard; Q/HZL 16-2003Appearance ;White fine powderProtein ;≥1.8% Calcium;≥37.5%Water;≤3% Mesh;200mesh ,500mesh ,2000mesh,6000meshpathogenic bacterium ;Negtive Lead;≤1mg/kgHg;≤0.5mg/kg As;≤0.5mg/kg High quality natural pearl powder