L'Oreal Metal Detox Pre-Shampoo Treatment refills 1 million hair micro-breaks, in 1 minute.* Metal in water, penetrating inside your hair wash after wash, is one of the major causes of hair breakage. Porous hair, has an even higher risk of breaking as it absorbs 2x more water with metal. Through daily aggressions like chemical processing, heat styling or exposure to UV, micro-breaks multiply on the hair surface and cavities occur in the cortex, causing hair to get porous and absorb excess water with metal. This leads to higher risks of breakage. Porosity is the hair's ability to absorb water and moisture. 

Benefits:

• 3x less porous hair
• 2x less metal absorption 
• Instant detangling, even on the most porous hair
• 10x stronger
• Cumulative results, use after use
• Buildable with any hair routine
• -96% less hair breakage
• 72 hour hydration and smoothness
• Instant and efficient fibre detangling on all hair types
• Anti-porosity**
• Suitable for all hair types, even the most porous hair
• Concentrated with 2% Glicolfiller
• 30 applications per bottle on average

*Instrumental test

** Instrumental test after 10 uses of Metal Detox pre-shampoo treatment + shampoo + mask + oil.

How to use: Section wet hair into 2 separations, middle parting. Apply 3-4 drops per section, depending on the length. Distribute evenly onto each section: Work through the hair, from lengths to ends, for 1-2 minutes. Run the fingers through to detangle. Do not rinse. In a layering technique, apply the shampoo.