L'Oreal Serie Expert Metal Detox Pre-Treatment 500ml is a pre-treatment spray that neutralizes metal inside the hair fiber before color, bleach, and balayage services.

A liquid consistency spray to be applied before the technical service on dry hair. Without rinsing. No impact on the technical service. The results of the complete protocol are impressive:

• 87% less risk of breakage* and 100% reliable color results**. ,

*instrumental test: Metal Detox pre-treatment + technical service + shampoo + mask.

**no impact on lightening and optimized color result.