This Essensity oil-enriched developer activates hair color while respecting the hair fiber. Its gentle formula protects hair, delivering vibrant color and a silky feel. Respects hair health with natural oils Ensures optimal color activation Protects hair fiber for long-lasting results Provides shine and softness post-coloring HOW TO USE Mix the developer with Essensity color according to recommended ratios. Apply evenly on dry, unwashed hair. Leave on for the indicated time. Rinse thoroughly and shampoo.