The level of metal in hair varies, depending on hair porosity and on the water quality where we live. This patented technology with no sulfate is enriched with Glicoamine, a molecule small enough to penetrate and neutralize metal INSIDE the fiber. Hair is healthy looking and recovers its shine. For optimal results, follow with Metal DX anti-deposit protector mask to protect the fiber from particle deposits. To pro guarantee you color, balayage or lightening services ask for your 3-step in salon Metal DX protocol for 100% reliable color result* 87% less breakage risk **_