美发用品的防晒指数(KPF)阳光会“偷”去头发角质蛋白中的水分,如果遭受过日光的曝晒,秀发往往会变得发黄、脆弱,毫无弹性。游泳时秀发受到的伤害更大,在紫外线的影响下,水会发生一种类似漂白剂的化学反应,夏季长时间在室外游泳后,头发的颜色会变淡,发质会变差,就是这个原因造 Sun Protection Index (KPF) of the hairdressing supplies The sun will “steal” the moisture in the hair keratin, which tends to turn yellow, delicate and inelastic if exposed to sunlight. When swimming, the hair is harmed more. Under the influence of UV light, a kind of chemical reaction similar to bleach occurs in the water. After a long time outdoor swimming in summer, the hair color will be faded and the hair quality will deteriorate Made for this reason