Schwarzkopf Keratin Permanent Hair Dye 6.64 Champagne Brown, Bond Enforcing System & Full Gray Coverage

Schwarzkopf Keratin Color 6.64 Champagne Brown is a professional-grade permanent hair dye that delivers rich, multi-dimensional champagne brown color while strengthening hair with a three-step Bond Enforcing System.

This at-home color kit was formulated alongside professionals to give salon-inspired results: full gray coverage, long-lasting tone, and visible improvement to hair strength and manageability. The system combines a pre-color protective serum, a keratin-enriched color cream, and a post-color conditioner with K-Bond Plex to help reinforce the inner hair structure and reduce breakage. The kit is suited to all hair textures and includes everything required for a single full-coverage application.

How does this dye protect and strengthen hair during coloring?

The formula uses a three-step Bond Enforcing System designed to protect hair before, during, and after color application. Ingredients such as keratin and collagen-compatible actives help support fiber integrity while the post-color conditioner targets repair and softness.

• Pre-color serum with Vitamin B6 and collagen-boosting agents to prep and shield cuticles.
• Keratin-infused color cream that deposits pigment while helping to fortify strands.
• Post-color conditioner with K-Bond Plex technology to help restore inner hair bonds and improve combing resistance.
• Clinical-style comparison: reduces combing breakage on damaged hair versus a non-conditioning shampoo.

Will this product cover gray hair completely?

Yes — this permanent color is formulated to provide up to 100% gray coverage in a single application. The pigment delivery and developer strength are balanced to ensure uniform deposition, even on resistant gray strands, producing an even, natural-looking finish.

• Permanent dye base designed for full gray neutralization and blending.
• Even-toned results from roots to ends when directions are followed.
• Suitable for both natural and previously color-treated hair for refreshing color.
• For denser or longer hair, two boxes are recommended to guarantee complete coverage.

How long does the color last and how fade-resistant is it?

This permanent formula is created to deliver long-lasting color that remains true to tone with proper aftercare. While longevity varies by hair porosity and maintenance routine, the keratin and K-Bond Plex components support color retention and hair surface health to help keep the shade vibrant.

• Permanent color chemistry for extended wear compared to semi-permanent options.
• Nourishing post-color conditioner helps seal the cuticle and reduce premature fading.
• Recommended color-safe shampoos and conditioners will extend vibrancy.
• Avoid excessive heat styling and harsh clarifying products to maximize wear time.

What’s included and how easy is the at-home application?

The kit arrives ready to use with step-by-step instructions to guide first-time and experienced at-home colorists. Disposable gloves and a complete system minimize mess and streamline the process for consistent results.

• Pre-color protective serum, developer bottle, keratin color cream, and post-color conditioner included.
• Clear, illustrated instructions reduce guesswork for timing and mixing.
• Disposable gloves provided for safe, clean application.
• One box covers shoulder-length hair; two boxes recommended for thicker or longer hair.

Who is this product for? This Schwarzkopf Keratin Color 6.64 Champagne Brown kit is ideal for people seeking salon-standard permanent color at home who also want to strengthen and nurture hair during the coloring process. It suits those wanting reliable gray coverage, multi-dimensional champagne brown tones, and a conditioning system that supports hair resilience. If you prefer professional-quality color with clear instructions and an integrated bond-repair approach, this formula provides a balance of vivid shade payoff and targeted hair care.

Ingredients

PRE-SERUM: Aqua (Water, Eau), Hydroxyethylcellulose, PPG-1-PEG-9 Lauryl Glycol Ether, Pyridoxine HCl, Sodium Benzoate, Parfum (Fragrance), Sodium Salicylate, Hydrolyzed Collagen, Acrylamidopropyltrimonium Chloride/Acrylates Copolymer, Hexyl Cinnamal, Potassium Hydroxide, Sodium Chloride, Phenoxyethanol, Methylparaben, Ethylparaben, CI 14700 (Red 4), Acid Violet 43, Sodium Sulfate.; DEVELOPER: Aqua (Water, Eau), Hydrogen Peroxide, Cetearyl Alcohol, Paraffinum Liquidum (Mineral Oil, Huile Minérale), Ceteareth-20, Propylene Glycol, Etidronic Acid, 2,6-Dicarboxypyridine, Disodium Pyrophosphate, Potassium Hydroxide, Sodium Benzoate.; - COLOR CREAM: Aqua (Water, Eau), Propylene Glycol, Ammonium Hydroxide, Cetyl Alcohol, Paraffinum Liquidum (Mineral Oil, Huile Minérale), Stearyl Alcohol, Ceteareth-30, Parfum (Fragrance), Ethanolamine, Acrylamidopropyltrimonium Chloride/Acrylates Copolymer, Steareth-100, Glyceryl Stearate, Toluene-2,5-Diamine Sulfate, Hydrolyzed Collagen, Ammonium Sulfate, Sodium Sulfite, Tetrasodium EDTA, 1-Hydroxyethyl 4,5-Diamino Pyrazole Sulfate, Resorcinol, 2-Methylresorcinol, Hydrolyzed Keratin, 4-Chlororesorcinol, Ascorbic Acid, Phenoxyethanol, Sodium Chloride, 1-Naphthol, m-Aminophenol, Methylparaben, Ethylparaben, Potassium Sorbate.; - CONDITIONER: Aqua (Water, Eau), Cetearyl Alcohol, Behentrimonium Chloride, Dimethicone, Isopropyl Myristate, Citric Acid, Phenoxyethanol, Stearamidopropyl Dimethylamine, Isopropyl Alcohol, Glyceryl Stearate, Sodium Methylparaben, Parfum (Fragrance), Glycerin, Polyquaternium-37, Macadamia Ternifolia Seed Oil, Panthenol, Dicaprylyl Carbonate, Magnesium Chloride, Laureth-23, Laureth-4, Sodium Hydroxide, Hydrolyzed Keratin, Hexyl Cinnamal, Benzyl Salicylate, Linalool, Amodimethicone/Morpholinomethyl Silsesquioxane Copolymer, Benzyl Alcohol, Limonene, Citronellol, Salicylic Acid, Trideceth-5, Lauryl Glucoside, Magnesium Citrate, Sodium Sulfate, Sodium Benzoate, EDTA, Potassium Sorbate.