Nexxus Color Assure Conditioner has been specially formulated to help extend the color vibrancy of color-treated hair. Created with our exclusive PROTEINFUSION blend, this conditioner helps protect essential proteins with the hair fiber, helping bring hair back to life after the coloration process. For best results, use with the Nexxus Color Assure Shampoo. First, apply shampoo to wet hair, working it into a lather before rinsing thoroughly. Then, apply the Color Assure Conditioner, let rest for 3 minutes, and rinse thoroughly. This conditioner can help enhance vibrancy for up to 8 weeks or 40 washes. Nexxus scientists used Proteomics studies to examine hair damage at the molecular level and found that the main cause of color loss and dullness is hair coloration. With this knowledge in mind, our scientists developed a one-of-a-kind PROTEINFUSION blend with Elastin Protein and Quinoa, along with other ingredients, to create Color Assure formulas that result in long-lasting color vibrancy for up to 40 washes! The Nexxus Hair Color Assure Conditioner For Color Treated Hair with ProteinFusion, Color Hair Conditioner is our premiere collection for all your colored hair needs. Our Color Assure range includes new formats that create an optimal regimen for color care. The range includes products like a shampoo, conditioner, cleansing conditioner, purple shampoo for blonde and silver shades, and a deep treatment masque. A leader in salon-quality hair products, Nexxus uses learnings from science and nature. We know that hair is made of almost 90% proteins, which is why we use advanced scientific methods to identify the protein needs of each hair type and create customized formulas with proteins to bring your hair back to life.