This Strength Cure Blonde purple shampoo is specially designed to neutralize unwanted yellow tones in blonde hair while strengthening the hair fiber for a more resilient and radiant look. Effectively neutralizes yellow and brassy tones Strengthens hair fiber to prevent breakage Adds shine and softness to blonde hair Professional formula suitable for sensitized hair HOW TO USE Apply a small amount to wet hair, gently massage until a creamy lather forms. Leave on for 1 to 3 minutes depending on desired intensity, then rinse thoroughly. Use 1 to 2 times per week to maintain color and hair health.