Synthetic melanin helped to create a safe hair dye

Two years ago it became known about creating a more soft and gentle hair dyes with the addition of graphene. More recently, however, cosmetologists have released a new paint with a slightly less exotic active substance – synthetic melanin.

In most modern hair dyes are applied very aggressive components, including hydrogen peroxide, ammonia and a variety of colors. Penetrating into the cuticle of each hair, keeping him staining. However, frequent hair coloring leads to damage and to allergic reactions of customers and stylists.

To solve this problem will help the melanin – the natural pigment that gives our hair color. As you get older it disappears, because of which hair becomes dull hue. In the recent past, researchers have tried to use synthetic melanin as an alternative to traditional dyes. Unfortunately, to enhance the effect, it is necessary to add heavy metals and oxidizing agents in hazardous concentrations.

A team of researchers at northwestern University in Illinois have developed a replacement to these metals and oxidants in the form of a small amount of ammonium hydroxide, which requires only a little heating. As a result of natural dark shades are produced by increasing its concentration, and the red and Golden – due to the small additives of hydrogen peroxide.

The overall coloring process is much more mild compared to regular dyes because synthetic melanin covers the outside of each hair, leaving the cuticle intact. According to the developers, this process is much less harmful for the hair. In laboratory tests, the color intensity was maintained for at least 18 days.

Leave a Reply

Your email address will not be published. Required fields are marked *

Releated

Coffee helps robot walkers to navigate the terrain much faster

One of the problems of using robots on the roads is that it is impossible to predict the topography of the surface on which they will have to move. The best option yet are walking mechanisms, but the issue for them, only on a smaller scale. First and foremost, we are talking about the feet […]

In the United States launched the network of public scooters-drones

In the town of PEACHTREE corners, Georgia (USA), Technopark Curiosity Lab launched a new public transport system. A fleet of 100 electric scooter converted for unmanned movement will be in test mode to arrive to the challenges employees of the industrial Park to test the effectiveness of the concept. Initially the experiment was supposed to […]

In Sweden built the first wind generator out of wood

In Sweden launched the first wooden wind turbine which is made of environmentally friendly materials and provides performance comparable with conventional “wind turbines”. Its creators hope that the new installation will be the harbinger of cheaper and environmentally friendly solutions for renewable energy sources in countries with cold climate. Following in the footsteps of their […]

During the recent historic launch aboard the Crew Dragon did the dinosaur

Last Saturday, at 15:22 on the East coast of the US company SpaceX launched into space from Cape Canaveral, the Falcon 9 rocket with the spacecraft Crew Dragon. The launch occurred in the social networks because of its valuable historical cargo on Board: two NASA astronauts were accompanied by plush dinosaur with glitter. The launch […]