Find the culprit who makes hair and split ends

Scientists discovered that washing hair with copper-based tap water can cause hair to be split and dry, not sticky - one of the common inconveniences of modern life.

In the new study, scientists conducted hair analysis of 450 women around the world and found they had different amounts of copper in their hair.

On average, most research subjects own about 20 to 200 copper atoms in every 1 million molecules of their hair. However, some people with this index are much higher, over 500 copper atoms / 1 million hair molecules.

Copper in tap water can accumulate outside, destroying hair sheaths, causing hair to lose shine, become weaker, dry and loose.(Photo: Alamy)

The natural drinking water is said to contain low copper content. However, the purification process of water plants and especially traditional copper pipelines has increased the content of this metal in tap water supplied to households. Even in families installing plastic water pipes, hot water tanks or containers can be made from copper.

Because each hair can grow up to 3 years before shedding, low copper content in the water used to wash hair can accumulate in the outer layers of the hair. At that time, this buildup of metal will increase the formation of reactive molecules, breaking the outer coatings of the hair.

Damaged protection also means that hair fibers lose their shine and become weaker than normal, easily broken when brushed or damaged during drying. Hair in this condition also suffers more severe damage from sunlight, dyes, resulting in split ends, dry fibers and discrete.

According to the article published in the International Journal of Cosmetic Science , the researchers also discovered that, how to treat hair with complex chemicals (compounds in which a metal ion binds to two or more non-metallic atoms, which are more commonly used in washing powders, can reduce the effect of copper.

From the results of the study, some of the world's leading cosmetics manufacturers hope to introduce complex complex chemicals into future shampoo and hair dye products to reduce copper-induced damage. out for hair.