Nexxus Color Assure Shampoo for Color-Treated Hair 33.8 oz — Sulfate-Free, Protein Repair

Nexxus Color Assure Shampoo is a sulfate-free, protein-powered shampoo that helps lock in salon color and maintain vibrancy for up to 40 washes using Chromabond Sealer with citric acid.

Nexxus developed this formula to address how chemical, thermal, and physical stress weaken hair protein and accelerate color loss. Rather than masking fade, Color Assure targets the protein matrix: citric acid and Chromabond Sealer technology work together to repair color-induced damage, smooth the cuticle, and help keep color molecules sealed inside each strand. The result is improved shine, reduced frizz, and a more reflective, multidimensional finish that stays noticeable wash after wash.

How does Color Assure protect color between salon visits?

The formula combines a 3.3% Chromabond Sealer complex with citric acid and an ionic sealing system to reduce molecule diffusion and reinforce bond integrity. That protective action helps slow the visible effects of fading from water, heat, and styling.

• Chromabond Sealer technology helps maintain color depth and tone.
• Citric acid smooths and seals the cuticle to limit color release.
• Ionic sealing complex forms a hydrophobic layer that protects color molecules.
• Clinically validated system performance for up to 40 washes.

Will this shampoo repair damage from coloring?

Color Assure is built on protein science to address damage created by chemical processing. It doesn’t change the dye, but it helps rebuild the hair’s protein structure so strands perform better and look healthier after treatment.

• Protein-based ingredients strengthen weakened keratin bonds.
• Formulated to smooth the cuticle and reduce friction and breakage.
• Works with the matching conditioner for a reparative system effect.

Is Nexxus Color Assure suitable for my routine and hair type?

The shampoo is sulfate-free and designed for color-treated hair of most textures, balancing color preservation with gentle cleansing. It adds moisture and manageability without stripping dyes, making it practical for regular use between professional color services.

• Sulfate-free formula for gentler cleansing on colored hair.
• Hydration boost for softness and easier detangling.
• Helps reduce frizz while preserving multidimensional tone.

How quickly will I notice results and what can I expect?

Many users see improved shine and smoother texture after one use, while measurable color retention is designed to last through dozens of washes. Combining the shampoo with the matching conditioner maximizes protective and reparative benefits.

• Instant smoothing and shine from the first wash.
• Protection against visible fading up to approximately 40 washes when used as a system.
• Consumer-validated performance in home-use testing for color-treated hair.

Who this is for: Nexxus Color Assure Shampoo is ideal for anyone who regularly colors, highlights, or lightens their hair and wants a professional-strength, sulfate-free shampoo to help maintain color depth and shine. It suits people seeking repair-focused color care—those who want to protect salon results, reduce frizz, and improve strand strength without harsh detergents. Pair it with the Color Assure conditioner for the full Chromabond Sealer system effect and the best chance at long-lasting vibrancy.

Ingredients

Water (Aqua), Coco-Betaine, Sodium Cocoyl Isethionate, Cocamidopropyl Betaine, Sodium Chloride, Hydrolyzed Elastin, Phalaenopsis Amabilis Extract, Argania Spinosa Kernel Oil, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Cocos Nucifera (Coconut) Oil, Hydrolyzed Keratin, Hydrolyzed Wheat Protein, Fragrance (Parfum), Polyquaternium-10, Ppg-9, Tetrasodium Edta, Dmdm Hydantoin, Citric Acid, Propylene Glycol, Methylchloroisothiazolinone, Peg-150 Pentaerythrityl Tetrastearate, Ppg-2 Hydroxyethyl Cocamide, Methylisothiazolinone, Red 33 (Ci 17200), Blue 1 (Ci 42090)