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现代，护肤营养化妆品日新月异，然而，有的人使用营养护肤化妆品，其效果却不明显。究其原因，除了使用方法不当外，还可能与化妆品出厂时间过长有关。在营养化妆品中，含有许多挥发性的物质，时间过长，易于挥发和失效，如珍珠营养霜中的珍珠，就是一种易挥发的物质。陈旧的?
Modern, skin care nutrition cosmetics with each passing day, however, some people use nutritional skin care cosmetics, the effect is not obvious. The reason, in addition to improper use, but also may be related to cosmetics factory too long. In nutritional cosmetics, contains many volatile substances, over time, easy to volatilize and failure, such as pearl nutrition pearls, is a volatile material. old?