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进入夏季,如果你经常曝晒于阳光之下,有时即使是轻微的烤晒,你的肌肤也会受到过量紫外线的辐射,使皮肤的弹力纤维遭到破坏,伤害皮肤的青春活力,加速皮肤老化,并出现褐斑和皱纹。 现代科学研究证实,紫外线长期辐射皮肤,会使皮肤细胞核中的脱氧核糖核酸发生变化,导致表皮内硫氢基减少,酪氨酶活性增加,黑色素的合成增多,并向表皮各层细胞扩散,使细胞分裂生长的过程出现不正常现象。其结果会使皮肤变得粗糙、起皱,毛细血管减少,失去光泽和弹性,而且特别容易引起色斑、雀
Enter the summer, if you often exposed to the sun, and sometimes even a slight roasted sun, your skin will be exposed to excessive UV radiation, the elastic fibers of the skin was destroyed, hurt the skin’s youthful vitality, accelerate skin aging, And appear brown spots and wrinkles. Modern scientific studies have confirmed that long-term ultraviolet radiation of the skin, the skin will change the DNA in the nucleus, leading to the reduction of intracellular hydrogen sulfide, tyrosinase activity increased, increased synthesis of melanin, and to the epidermal cells spread to make The process of cell division and growth appears abnormal phenomenon. As a result, the skin becomes rough, wrinkled, capillaries are reduced, loses its gloss and elasticity, and is particularly apt to cause stains,