L'Oréal Serie Expert Metal Detox Mask - 250ml L'Oréal Professionnel Metal Detox Anti-Deposit Protector Mask is specially designed to protect hair fibers from metal particle deposits that can accumulate after color, balayage, or lightening services. Metals within the hair fiber can lead to increased breakage risks and can interfere with achieving optimal color results, impacting the vibrancy and longevity of the treatment. Protect The Fiber From Particles Deposits. Hair Is Instantly Smoother, Softer & More Nourrished. Hair Is Stronger. Colour Lasts Longer, 2x Shinier. 87% Less Breakage. 100% Reliable Colour. Use For Optimal Results, Use After The Anti-metal Cleansing Cream Shampoo. Apply Evenly On Shampooed And Towel-dried Hair. Leave On For 1 Minute.