Gallery: Golden Tresses? You Can Now D...

nanotechnology, nanoparticles, human hair, eco-friendly hair dyes, sustainable hair dyes, Université Pierre et Marie Curie, Philippe Walter, American Chemical Society, eco-beauty, eco-friendly beauty, sustainable beauty

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Looking to dye your lovely locks, but without the toxic chemicals? Well, you’re in luck because you could be dying your hair with gold someday. Though a couple of scientists in New Zealand were able to successfully dye lamb’s wool with gold, Dr. Philippe Walter at Université Pierre et Marie Curie-CNRS and his colleagues were interested in trying out gold nanotechnology to dye hair. It’s known that the Romans and Greeks used to dye their hair with lead, so Dr. Walter figured gold would have similar effects. They carried out the test on a couple of white hairs by soaking them in gold particles. After a day, the hairs turned yellow then a little over two weeks later, the hairs were permanently a dark brown — even after several washes.

nanotechnology, nanoparticles, human hair, eco-friendly hair dyes, sustainable hair dyes, Université Pierre et Marie Curie, Philippe Walter, American Chemical Society, eco-beauty, eco-friendly beauty, sustainable beauty

With $30 of gold used to dye an average head of hair, that’s pretty affordable compared to a $100 trip to the hair salon. There are some downsides though: the dying process alone takes about six hours and then 16 days for the color to really show up. Also another quick note, your hair will glow red under ultraviolet lights (talk about being the life of the party!). Dr. Walter says that it’s a side-effect of how gold interacts with hair fibers. Gold nanotechnology is more known for it’s work towards detecting cancer, but this could be its breakthrough into the beauty industry.

+ Press Release

+ Université Pierre et Marie Curie

[Via Chemical & Engineering News]

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