Antioxidant. Color Obsessed with an Antioxidant, helps protect against fading and extend the life of color vibrancy (When using system of shampoo & conditioner). Porous hair feels strengthened (Resistance against brushing. Shampoo, conditioner and spray vs classic shampoo alone on bleached hair) and has totally brilliant color and shine (When using system of shampoo & conditioner). www.matrix.com. Made in Spain.