Stock up and save on the ultimate metal detox routine with this L'Oreal Professionnel Metal Detox anti-porosity filler pre-shampoo treatment & Serie Expert Metal Detox Shampoo 500ml Duo. Metal Detox Pre-Shampoo Treatment: Metal in water penetrating inside your hair is one of the major causes of hair breakage. But did you know that porous hair has an even higher risk of breaking as it absorbs up to 2x more water with metal? Through daily aggressions like chemical processing, heat styling or UV, micro-breaks multiply on the hair surface & cavities occur in the cortex, causing hair to get porous & absorb excess water with metal. Micro-breaks are a disruption of the protective cuticle layer which are the first signs of damage. This leads to higher risks of breakage. This new pre-shampoo treatment is part of the Metal Detox range, a full anti-metal protocol to help prevent hair breakage & colour fade. Lightweight, concentrated gel texture that instantly & deeply penetrates the fibre. Instant action, no pausing time needed. Boasting an addictive fragrance with a unique tech signature, thanks to a memorable citrus top associated with distinctive musky woods. Suitable for all hair textures, colour-treated, damaged, sensitized, bleached & natural hair. Serie Expert Metal Detox Shampoo 500ml: Protect hair from excess copper coming from water, with L'Oreal Professionnel Serie Expert Metal Detox Shampoo, this shampoo protects the fiber from deposits after any colour, balayage or lightening treatment. Stock up and save with this 500ml Supersize. This rich, creamy unique shampoo helps maintain colour vibrancy, instantly smooths and softens hair resulting in nourished healthy locks. When you get the Metal Detox treatment in salon before colour followed by our care routine, enjoy the benefits of up to 87% less breakage** & reliable colour results. For optimal results, use after Metal Detox anti-metal cleansing cream shampoo. *Instrumental test after Metal Detox Shampoo + Mask up to next shampoo **Instrumental test: Metal Detox pre-treatment + technical procedure + shampoo + mask.