The level of metal in the hair varies, depending depending on the porosity of the hair and the quality of the water we live in. This patented technology is concentrated with 10% glycoamine, a molecule small enough to penetrate the fiber. For best results, follow with Metal Detox Cleansing Cream Shampoo. The 3-step professional in-salon protocol for up to 87% less risk of breakage*. Step 1: Metal Detox pretreatment neutralizes excess copper. Used before any color, balayage or lightening service. Step 2: Metal Detox Cleansing Cream cleanses hair after service. Phase 3: Metal Detox helps prevent new particles from returning. *Instrumental test: Metal Detox pre-treatment + technical procedure + shampoo + mask.