The L'Oreal Professionnel Metal Detox Pre-Treatment Spray is designed to protect your hair from metal particles found in water. This innovative spray works to neutralize these metals before or during your coloring, lightening, or balayage service, ensuring optimal results and preserving hair integrity. Its lightweight formula is easy to apply and prepare your hair for a flawless color transformation. It helps to prevent porosity and breakage, leaving your hair feeling healthier and looking vibrant.