Scientists have created a hair dye from synthetic melanin that mimics the natural hair color and reduces the risk of allergies.
Their synthetic dyes, which range in color from yellow to black, combine enzymes from fungi – which are rich in melanin – with an amino acid to mimic melanin naturally produced in the body.
Melanin – a natural pigment that makes skin, hair and eyes dark – is present in all types of organisms, making it a versatile and readily available material.
Synthetic melanin is less toxic than chemicals currently used to remove hair pigmentation prior to recovery, which can cause skin irritation.
It may also provide an alternative for people with hair dye allergies, who still want to be able to take root treatment.
The researchers said they could achieve the color arrangement by changing the concentration of melanin
“From a biomedical perspective, there are a lot of people with hair dye allergies,” said Nathan Gianneschi at Northwestern University in Illinois.
‘Our first thought was that it would be great if there was a solution to help those people.’
BENEFITS OF MELANIN SYNTHETIC
– Synthesize melanin to avoid using ammonia as a base layer.
– The pigmentation hair precursors are less toxic.
The process of using chemicals is safer, easier to expand.
– There is great potential to convert synthetic melanin in cosmetics in the future.
In a typical salon hair coloring procedure, stylists use bleach to remove pigmentation from the hair, then add ammonia and dye to open and penetrate the hair cuticles.
Replacing melanin instead of removing it as a way of depositing color on the surface of the hair can provide a more sustainable way of long-lasting color.
In humans, melanin acts as a defense mechanism against the harmful effects of UV rays from the sun, which is why people from warmer climates tend to have darker skin.
“In humans, it’s in the back of our eyes to aid our eyesight, it’s in our skin to help protect our skin cells from UV damage,” Gianneschi said.
“But birds also use it as a spectacular color show – peacock feathers are made entirely of melanin.”
Also because it is a softer process than traditional dyes, covering your hair with synthetic melanin also has the ability to protect hair from sun damage, which can whiten hair.
The researchers say they can achieve a range of colors, from light to dark, by altering their synthetic melanin concentration.
The product will be in the form of a dye and will be used in the same way as a regular hair color, as a mixture from a bottle.
Preliminary studies also show the possibility that the colored melanin layer persists through multiple washings.
In a typical hair coloring procedure, stylists use bleach to remove pigmentation from the hair, then add ammonia and dye to open and penetrate the hair cuticles for permanent coloration.
“The staining process is similar from the stylist’s point of view, but these conditions are lighter, so they take a little longer,” said lead author Claudia Battistella.
‘Although it can be combined with a substrate, it is not necessary to use it, and no chemical colorant is required.’
And because we already have melanin in our bodies, researchers think it’s unlikely that people will have an allergic reaction to it.
On the other hand, traditional hair dyes are estimated to cause allergies and skin irritation in about 1% of people.
Repeated use of certain dyes has been linked to cancer – last year, researchers found that women who regularly used permanent hair dyes for eight years were at risk. Breast cancer is 9% higher than non-users.
Studies have shown that people who dye their hair regularly may have an increased risk of cancer
And people who have chemically treated hair loss every 5 to 8 weeks have a 30% higher risk.
The chemicals can get into the skin through the scalp and smoke can also be inhaled when the dye is applied, the researchers warn.
Experts believe that, with the industry’s desire to stay away from carcinogens and other toxic chemicals, synthetic melanin could surpass the regulatory industry.
Now, they aim to find a trading partner willing to develop this dye on a larger scale and bring it to stores around the world.
The research was published in the journal Material Chemistry.
WHAT CAUSES THAT CAUSES HAIR HAIR?
Researchers have been studying a possible link between hair dye use and cancer for years with inconclusive results.
Some chemicals in hair dyes can be absorbed in small amounts through the skin or inhaled from smoke in the air.
Several ingredients used in hair dyes have been shown to cause cancer in laboratory animals, but it is not clear how these results may be related to people’s use of the dye.
Although studies have shown that some dyes applied to animal skin are absorbed into the bloodstream, most have found no association between skin application and cancer risk.
Several human studies show that people who regularly work with hair dyes as part of their job, such as hairdressers, stylists, and barbers, are more likely to be exposed than those who only occasional hair coloring.
The American Cancer Society says a small but fairly steady increased risk of bladder cancer has been found in people who do these jobs, and these findings have been mixed for studies of leukemia and lymphoma, the American Cancer Society said.
The International Agency for Research on Cancer (IARC) has concluded that workplace exposure such as barbers or barbers is ‘possibly carcinogenic to humans’, based on cancer-related data. bladder cancer.
The National Toxicology Program (NTP), made up of sections of a number of different U.S. government agencies, has not classified hair dye exposure as potentially carcinogenic. . However, it has classified certain chemicals that are or are used in hair dyes as ‘reasonably predicted to be human carcinogens’.