Sodium Hyaluronate (Cosmetics Grade)

Hyaluronic acid is a natural biomolecule widely present in the skin and other tissues, with excellent moisturizing effects. It is internationally known as the ideal Natural Moisturizing Factor (NMF). It is currently the substance with the best moisturizing performance for cosmetics found in nature. When acting on the skin surface, high molecular weight hyaluronic acid can form a breathable thin film on the skin, making it smooth and moisturized, and can block the invasion of external bacteria, dust, and ultraviolet rays, protecting the skin from harm.

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Technical Standards:

检验项目		标准值	检验项目		标准值
外观	白色或类白色固体粉末		砷含量	≤2ppm
透明质酸钠含量	90%-105%		细菌总数	≤100cfu/g
葡萄糖醛酸	≥42%		霉菌与酵母菌总数	≤10cfu/g
pH（0.1%水溶液）	6.0-7.5		铜绿假单胞菌	不得检出
分子量	(0.8-1.8)×106		金黄色葡萄糖球菌	不得检出
蛋白质	≤0.1%		包装	按客户要求包装
透光率（0.1%水溶液）	≥99%		储藏	密封，凉暗处保存
干燥失重	≤10.0%		保质期	二年
重金属（以铅计）	≤20ppm