a醇在护肤品的营养成分里面,被叫作视黄醇,还有一些被称作视黄铜,在护肤里面不会像A酸那么强大,但是也有很好的抗衰老作用,所以被公认的“最有效的抗老成分之一”。
A醇的作用:
Retinol(A醇)可以激发细胞释放通信因子,到达基地甚至真皮层,促进皮肤表皮的更新,让皮肤更光滑和红润,并且可以增加胶原蛋白的生产,预防和淡化皱纹。
最重要的是,所有这些功能都有严谨的科学证据,比所谓干细胞、DNA这些虚无缥缈的看似科学实则忽悠的概念要靠谱得多。
A醇的注意事项:
A醇类的产品晚上使用,白天做好防晒!保湿工作也要做好,尤其是属于干燥肤质的人群。搭配上,A醇不要和水杨酸、果酸、高浓度VC一起使用。
循序渐进,首次使用可以每隔1-2天用一次,如果出现刺痛泛红干燥脱皮等不耐受的现象,需要减量、减少使用频率,或从局部点涂开始,2-4周逐步建立耐受。 适应后可以每天一次。
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