Autumn whiten general knowledge _ that you must understand to whiten

Autumn whiten general knowledge _ that you must understand to whiten

Autumn whiten general knowledge that you must understand
Q:A lot of products have frost and quintessence in daytime of U.S.A. now, also whiten late frost and quintessence at night. It is said the best period when whitens is the night. Then, is it enough for me to use and whiten the products only in the evening? Does this kind of method have scientific reason?
A:Whiten and have a scientific one sooner or later. Because the ultraviolet ray is the only reason to form black spot and make the skin darken. So if does not block the infringement of the ultraviolet ray and whiten and attend to in time in the daytime, light by to whiten maintenance evening, will certainly run into daytime speed that skin darkens.
Except tanned, ultraviolet ray most big danger lie in it will arrive layer of dermis directly, cause aging phenomena such as relaxing, wrinkles,etc.. If thus prevent suntan incompletely completely, more whitening is unhelpful. And except ultraviolet ray, other external world stimulate the factors such as air pollution, color make-up, also will accelerate the production of the melanin.
Majority frost contain the intersection of vitamin and E, vitamin C, the intersection of licorice root and composition such as being sour beautiful daytime, can block the ultraviolet injury in the daytime. The skin of Asian women and western women is under ultraviolet infringement, old and feeble signs shown are different. Western women are old and feeble to display in wrinkles more, and Asian women display in the patch.
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