如何通过保湿来护肤你知道多少？

　　在没有专门护肤品出现的时候，人类靠一些动物油脂和橄榄油这类的植物油，蜡，蜂蜜滋养皮肤，为什么这些天然成分能够保护皮肤呢?其实就是减少皮肤中水分的散发，让皮肤含水量提升，抵抗寒冷和干燥。也就是说，滋润皮肤这个行为，我们人类已经不知不觉的坚持了几千甚至上万年。

　　滋润皮肤的一个重要目的，就是为了保持皮肤水分，为什么皮肤含水量高会让皮肤好?

　　当皮肤含水量上升，外观显得饱满，角质排列精密，人也显得白一些，而皮肤含水量下降，角质会适当的收紧一些，面部皮肤不仅显得黑黄，严重的时候，皮肤失去弹性，脱屑，甚至干裂。

　　同时皮肤含水量下降，皮肤代谢也就会变慢，引发种种问题，例如皮肤不能有效修复自身受到的创伤，新生的健康角质就迟迟“不见天日”。更何况，干燥翘起的角质不仅保湿能力下降，同时抵抗外界刺激的能力也降低。

　　保湿的第一条策略——保护你的屏障功能!

　　皮肤屏障受损后，不仅外界容易入侵，同时皮肤自身水分散发也会增加。以下这些习惯会损伤你的屏障功能。

　　角质层是我们皮肤的保护屏障，反复去角质或用过酸过碱型的洁面产品都会会让我们的角质层变薄甚至受损。

　　这时应该选择温和的氨基酸洁面产品，去角质也不能过于频繁，干性、敏感性皮肤基本上不需要去角质，只有感觉皮肤粗糙或吸收护肤品不好的时候适当去角质。

　　要清楚自己的肤质和皮肤状况，然后挑选适合自己情况的护肤品，不要盲目崇拜大牌，针对性地护理肌肤才是首选。比如干性、敏感性皮肤就不要选择含酒精、酸类成分的产品。

　　不要频繁做币安注册，听信网上说的一天几次币安注册能让皮肤变好，币安注册属于周期性护肤品，只需要周期性使用，例如一周2-3次就够了。过度使用币安注册会反复让角质层过度水肿，尤其对容易长痘的皮肤不利，会让毛孔堵塞的情况加重，所以会加重痘痘。

　　保湿的第二条策略——洗脸之后立即涂抹保湿产品!

　　为什么是立刻呢?

　　因为洗脸过程中，会流失大量的皮肤自身水溶性保湿因子、皮脂以及少量外层角质，所以皮肤天然保湿屏障会暂时的受损，如果我们的皮肤能力足够健康，就能快速回复到理想状态。

　　但有些人天生屏障能力不足或者是过度亢进，比如为了恢复，皮脂腺大量分泌皮脂造成油腻;加上外界恶劣环境的影响，如北方的干燥风沙，不及时锁水就会造成皮肤水分大量流失，产生干燥，刺痛，瘙痒等症状。

　　用最简单的话来说，我们应该在皮肤含水量最高的时候(刚洗完澡或刚洗完脸)，根据自己皮肤性质(干性/油性/敏感等)，以及当时季节或外界环境(冷/热+空气干燥/湿润)涂抹适合自己的保湿产品。

　　In the absence of specialized skin care products, human beings rely on some animal fats and vegetable oils such as olive oil, wax and honey to nourish the skin. Why can these natural ingredients protect the skin? In fact, it is to reduce the moisture emission of the skin, so that the skin moisture content, resistance to cold and dry. That is to say, the act of moistening the skin, we humans have unknowingly insisted on thousands or even thousands of years.

　　An important purpose that moistens the skin, it is to maintain skin moisture namely, why can skin moisture content make the skin good?

　　When skin moisture content rises, the appearance appears full, horny arrangement is precise, the person also appears a few whiter, and the skin moisture content drops, horny meeting is proper a few firmer, facial skin appears not only black and yellow, when serious, the skin loses flexibility, desquamate, dry crack even.

　　At the same time skin moisture content drops, skin metabolization also can become slow, cause a variety of problems, for example the skin cannot repair the wound that oneself get effectively, new-born healthy cutin is tardy "do not see day day". What's more, dry become warped cutin protects wet ability to drop not only, the ability that resists outside stimulation at the same time also decreases.

　　Protect wet the first strategy -- protect your screen function!

　　After skin barrier is damaged, not only the outside world is easy to invade, at the same time the skin itself moisture emission will increase. These habits can damage your barrier function.

　　The cuticle is the protective barrier of our skin, and repeated exfoliation or use of acid-base cleansing products can thin or damage our cuticle.

　　Should choose gentle amino acid cleanser product at this moment, chamfer also cannot too frequent, dry sex, sensitive skin basically does not need chamfer, only feel the skin is coarse or when absorption protects skin to taste bad, appropriate chamfer.

　　Want clear oneself skin character and skin condition, choose to suit the skin care that oneself circumstance protects skin to taste next, do not idolize big shop sign blindly, pertinently nurse skin just is first selection. For instance dry, sensitive skin does not choose to contain alcohol, acid kind of composition product.

　　Do not make face film frequently, the mask that a few times a day that listens to a letter to say on the net can let the skin become good, face film belongs to periodic skin care to taste, need periodic use only, for example a week 2-3 enough. Excessive use of facial mask will repeatedly let the cuticle excessive edema, especially for the skin prone to acne is adverse, will let the pore clogging situation aggravate, so will aggravate acne.

　　Protect wet the 2nd strategy -- after washing a face immediately daub protects wet product!

　　Why immediately?

　　Due to the loss of water-soluble moisturizing factors, sebum and a small amount of outer keratin, the natural moisturizing barrier of the skin will be temporarily damaged. If our skin is healthy enough, we can quickly return to the ideal state.

　　But some people are born barrier ability is insufficient or excessive hyperactivity, for example in order to restore, sebaceous gland secretes sebum in great quantities to cause fat; Add the influence of outside abominable environment, if the dry wind and sand of the north, do not lock water in time to be able to cause skin moisture to be lost in great quantities, produce dry, prickly, SAO urticant wait for a symptom.

　　To put it in simplest terms, we should apply moisturizers that are appropriate for our skin at its highest moisture content (just after a shower or face wash), depending on the nature of our skin (dry/oily/sensitive, etc.) and the season or external environment (cold/hot + air dry/wet).