Shampoo chemistry hair?

Category: Cosmetics and perfumes | 08 мая 2014, 09:36

Not so terrible components of shampoos, how they scare us!

"Shampoo restores the hair scales", "Our products contain only natural ingredients" — such slogans have infiltrated the minds of consumers through television commercials. On the Internet in addition to similar phrases can be read completely different, for example, that basic detergents cause allergies and harm the scalp that natural cosmetics do not exist.

Often the discussion panic over the question: "what do we do now?" Interestingly, while chemists who are well versed in the substances listed on the labels, means for washing the head in use, and particularly about their harm not worried.

Shampoos simply are not possible without chemistry. In any detergent contains a surfactant (surfactant), which is responsible for cleansing and foaming. Surfactants are the lauryl sulfates and laurilsulfate, and it scares women.

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Composition one vial

— If the shampoo does not contain sodium lauryl sulphate, instead it has some other surfactants, — said the chemist Tatiana Lastovkina. — Lauryl sulfate has several advantages: it is biodegradable, cheap, has excellent detergent properties. Is included not only shampoo but also shower gels, many toothpastes, etc.

Our correspondent has examined the three labels of the shampoos that are sold in hypermarkets, – expensive and cheaper brands of well-known foreign and Russian, on which stood the words "hypoallergenic". Interested primarily surfactants, which are recorded at the beginning of the composition, after water. Their shampoos the most, and they often cause concern among women.

In the more expensive shampoo in the first place were Sodium Laureth Sulfate, cocamidopropyl betaine Betaine. The sodium Laureth is one of the most popular surfactants. According to foreign encyclopedias, this substance is not so dangerous to cause cancer, but may develop skin Allergy (this is proven already), as well as to irritate the eye. The last American researchers from the Russian consumers will not surprise the eye, if you got the shampoo, you have to clean, know it all.

However, in the budget of the brand Nivea shampoos, Greenpharma, Klorane and Yves Rocher us generally not been found any harmful to scalp substances, so the conclusion here is not the price determines the quality of the shampoo! By the way, the latest products You can buy with a good discount, if you get a promo code to purchase on shopience.ru (http://shopience.ru/)!

Kokamidopropilbetain – surfactant newer than Laureth. And, once it was invented, researchers said it hypoallergenicity. The substance is first added to shampoos for children, as, from the point of view of specialists, this surfactant was less harmful to the eyes. However, more recent analysis has shown that there's still contains allergenic impurity.

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These two substances are not recommended for people with sensitive skin. If the shampoo, where they are, suddenly irritated, it is likely that allergies are on kokamidopropilbetain. Because Laureth is in most shampoos, and Allergy to this drug is usually a person learns in childhood and youth.

The shampoo in the middle price category is the same Sodium Laureth Sulfate, but in combination with Disodium cocoamphodiacetate. Views at last the substance the researchers have different. American experts studying it, concluded that it does not cause allergies. In 2006, it has been confirmed. While it is considered one of the mildest Surfactants. But two years ago, foreign biologists have found that the substance is poorly decomposed and pollutes water and drains.

Content:

1. Composition one vial (You read that section);
2. Non-natural shampoos (http://www.of-md.com/nt-shampoo/);
3. Shampoos for special purposes (http://www.of-md.com/spc-shampoo/).