Wella Koleston Perfect 66/0 Intense Dark Blonde/Natural Permanent Color / 2 oz.
Wella Professionals Koleston Perfect Pure Naturals 66/0. Achieve deep, natural-looking color results with Wella Professionals Koleston Perfect Pure Naturals 66/0. This professional permanent color formula delivers intense, cool-toned brunette shades while maintaining the hair’s natural-looking depth and dimension. Designed specifically for salon use, it provides reliable coverage and consistent, even results across every application.
Quick Take
This professional hair color is formulated for stylists who demand predictable performance and true-to-tone results. The 66/0 shade offers a deep natural brunette base ideal for a variety of coloring techniques.
- Deep, cool-toned brunette shade (66/0) for natural-looking results
- Proprietary Pure Balance Technology for even color deposit
- High coverage reliability for consistent salon outcomes
- Formulated for professional application only
- Compatible with the full Koleston Perfect system
- Ideal for base color, root touch-ups, and full-head applications
Why Pros Choose It
Professional colorists rely on Koleston Perfect for its predictable lift, depth, and longevity. The Pure Naturals series simplifies formulation by delivering true-to-shade results without unwanted warmth or fading. This shade 66/0 offers rich, cool-toned depth that works beautifully for clients seeking a classic, understated brunette.
The ME+ molecule technology included in this formula helps reduce potential irritation while maintaining the vibrant color payoff professionals expect. It allows for smoother mixing, easier application, and more consistent processing across different hair types and porosities.
Key Benefits
This permanent color cream delivers reliable performance for a wide range of color services. From corrective work to standard touch-ups, the results remain uniform and professional.
- Provides deep, cool brunette tones without brassiness
- Ensures even color distribution from root to tip
- Delivers long-lasting color retention between salon visits
- Allows for precise formulation with the Koleston Perfect mixing system
- Supports multi-application protocols without color shifting
- Minimizes scalp irritation with ME+ technology
- Works effectively on gray or white hair for full coverage
- Maintains hair's natural shine and condition after processing
Features That Matter
Wella's Koleston Perfect is known for its consistent cream texture and reliable processing behavior. These features make it a staple in high-volume salons and color-focused studios.
- Pure Balance Technology ensures uniform color deposit across porous and non-porous areas
- ME+ molecule reduces the potential for allergic reactions without compromising color intensity
- Low-ammonia formulation for a more comfortable client experience during processing
- Rich cream consistency prevents dripping or running during application
- Compatible with a wide range of developers for customizing lift and coverage levels
- Pre-mixed color and developer remain stable for the full processing window
How to Use
For professional use only. Follow standard salon protocols for permanent color application. Always perform a patch test before service and wear appropriate gloves and protective equipment.
- Mix Koleston Perfect Pure Naturals 66/0 with the recommended developer in a non-metallic bowl
- Stir thoroughly until a smooth, even cream consistency is achieved
- Apply to dry, unwashed hair using a color brush or applicator bottle
- Process according to manufacturer guidelines based on the desired lift and coverage
- Rinse thoroughly with lukewarm water until the water runs clear
- Shampoo and condition with a color-safe professional aftercare system
- Style as usual, avoiding excessive heat on freshly processed hair
- Discard any remaining mixed color — do not save for future use
Specs & Details
This product is part of the Koleston Perfect permanent color line from Wella Professionals. It is manufactured for professional salon use and is not intended for retail sale.
- Brand: Wella Professionals
- Product Line: Koleston Perfect
- Shade: 66/0 Pure Naturals
- Type: Permanent hair color
- Usage: Professional salon use only
- Technology: ME+ molecule, Pure Balance Technology
Pro Tips
To get the most out of Koleston Perfect 66/0 in your daily station work, apply these professional best practices.
- Section hair finely and apply color systematically to ensure complete saturation and even coverage
- For gray coverage on resistant hair, extend the processing time slightly and monitor color development closely
- Always use the same developer strength for consistent results across multiple client appointments
- Store unopened tubes in a cool, dry place away from direct sunlight to maintain color stability
- Clean mixing tools immediately after use to prevent dried color buildup and staining
