Had better be used up after the suncream Kaifeng that year The efficiency of the products is not good every other year

Had better be used up after the suncream Kaifeng that year The efficiency of the products is not good every other year
Suncream of last summer use up yet, watch, wear far even quality guarantee period, then continue using. In fact, in order to guarantee the good sun-proof result, had better be used up after the suncream Kaifeng that year.
In year of quality guarantee period of sun-proof product, there are two years or three years, but not within quality guarantee period, can rest assured to spread it to enjoy sunbath. The intersection of speech and doctor Yan, dept. of dermatology of BJ Union Hospital, say after the cosmetics keeps in touch with the air suncream, the changes of the temperature, humidity are very apt to make its composition change in the air.
Though the sun-proof products every other year might not produce the side effect to the skin, but the suncream whose result drops can not reach the result of preventing suntan expected, it is very apt to let the skin penetrate in the sun directly and leave ruddily and darkening, even is injured. Had better be used up after the suncream Kaifeng within one year. If think the suncream is thrown away too regrettable every other year, can scribble in places such as the trick,etc., still there is certain sun-proof function.
A lot of people thought to apply the suncream on everything is just fine, doctor Yan says, in fact, it will be effective that the sun-proof product should reach certain thickness, it is that each square centimeter is about 2 milligrams specifically. And suncream should use in and a half hours 15 minute go out, and should mend and scribble once every 2 hours, could reach the best sun-proof result in this way.What should in addition should remind is, should scribble a layer of moisturizer first before daubing the suncream, try not to contact with the skin directly, so can already give some supplementary moisture of skin, also can reduce the stimulus to the skin.
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