PH值5-7，可以重建皮肤天然微酸性保护膜，防止皮肤干燥、破裂、止痒；
PH 5-7, rebuild naturally acidic protective film for the skin, prevent the skin from dryness, cracking, pruritic;
它们有和皮肤相同的pH值，所以它们能帮助恢复皮肤的酸性保护膜——它们还具有保湿、滋养和收敛性。
They have the same pH as the skin so they help restore the protective acid mantle–they also possess hydrating, nourishing and astringent properties.
但是，这同样会由于增加了口腔酸性而腐蚀牙齿的保护膜，牙釉质。
However, they also increase mouth acidity which erodes dental enamel - the tooth's hard protective coating.
应用推荐