Many exfoliators contain sharp, jagged crystals made from particles of apricot pits or nuts that can cut into the skin, causing irritation and inflammation, says Laura Goodman, a senior scientist at P&G. The crystals in the Pro-X formula are small, round and made of sodium bicarbonate -- also known as baking soda -- which dissolve during cleansing.
宝洁公司高级科学家劳拉古德曼(Laura Goodman)称,很多去角质产品都含有锋利的、锯齿状的晶体,这些晶体由杏仁或坚果的微粒制成,它们会刺进皮肤,引发红肿和炎症。而Pro-X产品配方中的晶体微小圆润,且由碳酸氢钠─也被称为苏打粉─制成,它们在清洁过程中就会溶解。
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