Metal detox: how metal could be affecting your hair colour services
Published
27th May 2021
by eleanor

What is metal and how does it affect hair colour?
The water we use in the salon can often contain minerals, calcium deposits and chlorine, so we are well aware that water can make our colour fade faster, can cause build up and can make hair look and feel dry. This can also present in dull colour tone, rough cuticles and even a green tinge to the hair. After years of feedback from hairstylists and colourists that colour results were not always optimal, L’Oréal Professionnel Paris decided to investigate if there was something else in the water that was impacting professional hair services.
What are the results from the research?
Once it was understood that metals in hair was a global issue, L’Oréal Professionnel Paris scientists, in collaboration with Ionnania University in Greece, spent seven years researching the topic. Together, they discovered that metal, and more specifically excess copper, can pose a real risk during the colour service. The hair acts like a sponge, so wash after wash, metal particles can accumulate on and inside the hair fibre. What’s more, they found that it is specifically the metal inside the hair fibre that poses the greatest risk, rather than any metals that sit on the fibre surface. When you add an oxidant to the hair during the colour process, the copper that may have accumulated over time inside the hair fibre can interact with it and cause interferences, which can lead to an unreliable colour uptake and breakage.How L’Oréal Professionnel Paris Metal Detox Service improves hair colour
Once it was clear the issue was metals inside the fibre that were the real issue, the research sought to uncover a molecule that could combat this problem. This research led to the discovery of glicoamine, the only molecule small enough to penetrate and neutralise metal inside the hair fibre. Glicoamine is at the heart of L’Oréal Professionnel Paris Metal Detox, a new professional protocol capable of neutralising excess copper in the hair.
How does the Metal Detox work on hair colour?
Metal Detox is a three-step professional protocol capable of neutralising excess copper in the hair. The protocol is in three steps and takes place in professional hair salons to elevate the results colour, balayage and lightening services.

