Schwarzkopf Keratin Permanent Hair Color Cream 1.8 Ruby Noir — Up to 100% Gray Coverage, Bond-Enforcing System

Schwarzkopf Keratin Permanent Hair Dye Cream in 1.8 Ruby Noir is a professional-quality at-home permanent hair color that delivers rich, multi-dimensional ruby-black tone with up to 100% gray coverage while helping strengthen hair with a three-step Bond Enforcing System.

Get salon-caliber color from home with Schwarzkopf's keratin-infused permanent dye. The kit combines a protective pre-color serum, a pigment-rich color cream, and a post-color conditioner featuring K-Bond Plex to refresh or transform hair with long-lasting tone and reinforced hair structure. The formula is designed for even coverage, fade resistance, and improved manageability, so color looks vibrant and hair feels smoother after care.

How does this dye protect hair during coloring?

The system uses a three-step approach: a pre-color serum to prepare strands, a keratin-rich color cream to deposit pigment, and a conditioning finish to rebuild bonds. Together these steps reduce combing breakage and leave hair feeling stronger and softer after processing.

• Pre-color serum with Vitamin B6 and collagen to shield and prep.
• Keratin-infused color cream to nourish while coloring.
• Post-color conditioner with K-Bond Plex for inner-structure support.
• Formulated to minimize breakage and improve manageability.

Will it fully cover gray hair and keep color true?

Schwarzkopf Keratin Permanent Hair Dye is formulated to deliver up to 100% gray coverage in a single application, producing consistent, even-toned results. The permanent pigments are designed for long-lasting intensity and reduced fading, so the ruby-noir shade stays vivid between touch-ups.

• Engineered for complete gray coverage in one step.
• Multi-dimensional pigments for natural-looking depth.
• Fade-resistant formulation for longer-lasting color.
• Suitable for refreshing previously color-treated hair.

How easy is the at-home application and what comes in the box?

The kit includes everything needed for a standard root-to-tip application and comes with clear instructions to guide each stage. Disposable gloves, developer, color cream, pre-color serum, and a post-color conditioner are provided so you can complete the full three-step routine without additional purchases.

• Complete kit: pre-color serum, developer, color cream, conditioner, gloves.
• Step-by-step instructions for first-time or experienced users.
• Use two boxes for very long or extra-thick hair for full coverage.
• Designed for comfortable at-home processing with professional results.

Does the formula alter hair texture or curl pattern?

The conditioning component is formulated to help maintain natural texture while restoring inner hair strength, so curls and waves retain their pattern with improved definition and less frizz. While results vary by hair type and condition, most users notice smoother, more manageable hair after the full routine.

• Post-color conditioner helps preserve curl and texture.
• K-Bond Plex helps repair internal bonds for healthier feel.
• Keratin infusion smooths the surface without weighing hair down.
• Recommended for all hair types and textures when applied as directed.

Who is this for: Schwarzkopf Keratin Permanent Hair Dye Cream in 1.8 Ruby Noir is designed for people seeking a deep, ruby-black permanent shade with complete gray coverage and a care-focused coloring routine. It's suitable for anyone who wants salon-level color at home, especially those concerned with hair strength and manageability—use two boxes for shoulder-length or longer hair to ensure full, even coverage.