Have one's hair washed and add silicons in the products efficaciously and safely

Have one's hair washed and add silicons in the products efficaciously and safely
Have one's hair washed and add silicons in the products efficaciously and safely
Cub reporter Yang JieSong of this newspaper Recently, a " shampoo blacklist " has spread on the network ,A lot of famous-brand shampoos appear on the list. It is said net friend list list this contain, ask silicon clever additive by one in the shampoo these, long term administration, this kind of additive, will result in depilating. However, when being interviewed by reporter, the experts all think the efficacious use in having one's hair washed the products of silicon is safe. Some shampoos, especially wash and protect and shut the one type shampoo two times, in order to leave the wonderful impression on users, will add silicons in a large amount efficaciously. Silicon is efficacious can fill and lead up the irregular surface bunker of hair rapidly, after using, you will cry out in alarm: "Never so suitable to slip! " But net friends do not think this kind of material can be washed out by water, long term administration will let the hair tarnish, become deep and serious, result in depilating finally. Organic chemistry researcher introduce clever silicon one polymer, chemical name to 2 first gather silicon oxygen alkane (or gather two methyl silicon oxygen alkane) ,Colourless and tasteless, the chemical property is steady. It is insoluble in water, can be soluble in most organic solvents, can play and slip, disappear on the function of bubbles again. Because their molecular weight is very big, will not be absorbed by the human body. The professional personage of chemistry of Seiko introduces, it is the space filled in to add the efficacious purpose of silicon between the hair scale, make the hair gentle and agreeable. Except that two methyl gathers silicon oxygen alkane, also might add in the shampoo and its property similar derivative amino to two first gather the intersection of silicon and the intersection of oxygen and alkane, two first Fourth Ring Road, gather the intersection of silicon and the intersection of oxygen and alkane,etc.. Reporter crook official, wait for the intersection of cosmetics and sales field find in indicate person who have one's hair washed of composition in the product already, two-in-one shampoo almost all the contain the intersection of silicon and clever or his derivative, in children have the products had one's hair washed, have not found the similar material. The reporter has inquired several consumers choosing the having one's hair washed products at random, some consumers know " The shampoo blacklist " ,And show that will avoid using the brand in the blacklist. On a free website offering the composition of cosmetics to inquire, the reporter finds, the hair tonic of a lot of foreign brands contains silicons too efficaciously. The score that and this website gives this kind of composition, it is safer. Then, long term administration contain silicon efficacious shampoo to cause and depilate? The third chief physician of hospital dept. of dermatology Professor Chen XueRong in Peking University thinks, the reason depilated is mainly to send roots light, detailed, silicon is efficacious assembling causes the statement depilated not to have scientific basis on the scalp. Environment and researcher of the relevant products research institute of the health of Center for Disease Prevention and Control of China tell reporters, silicon is efficacious and is considered to be a kind of safe composition, is used extensively in having one's hair washed the hair care products, some wash one's face, there is this composition in the skin care products too. Because silicon is not efficacious within additive list that our country exercise restraint in using, this centre has not been measured and tests its security, a report does not explain this material and depilate direct relation at present. Chinese the intersection of spices and essence and the intersection of cosmetics and industrial the intersection of association and cosmetics portion investigate in the world about think behind the research report of material this, 2 first gather silicon oxygen alkane ' The cosmetics are labelled for two first silicon oil) more Allow to be used in the cosmetics. Cosmetics composition that this material is allowed to use in U.S.A., Europe, Japan and other areas, there is no restriction to use the content. In " 2001 cosmetics compositions evaluate summary " ( 2001CIRCompendium) China, CIR expert panel think, two first gather the intersection of silicon and the intersection of oxygen and alkane, it uses cosmetics for to be safe too. Clinic, and animal absorb report reveal the intersection of oral cavity and contact, or skin contact 2 first gather silicon oxygen alkane and does not result in absorbing. The intersection of appraisal and experiment that CIR2003 carry on every year prove, two first gather the intersection of silicon and the intersection of oxygen and alkane, it uses cosmetics for to be safe, safe conclusion its most large to it uses the density to be: In the hair articles is at most 80%, in the cosmetics is at most 24%. It is reported, CIR is American cosmetics raw materials security examination organization, the cosmetics composition standard that can be used safely that it confirms, it is the global and common most authoritative cosmetics composition standard of the present stage. In addition, the data of various countries reveal, spectral analysis proves, it be gathered on the scalp that silicon is efficacious in recent years, and will be the next washed together with new dirt, dust,etc. while having one's hair washed.


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