Wella Koleston Perfect 33/0 Intense Dark Brown Permanent Color / 2 oz.
Wella Professionals Koleston Perfect ME+ 33/0 Dark Intense Brown Permanent Hair Color. Achieve deep, rich color results with Wella Professionals Koleston Perfect ME+ 33/0 Dark Intense Brown. This professional permanent hair color delivers maximum coverage and a flawless finish for clients seeking dramatic depth. Formulated with the advanced ME+ molecule, it helps reduce the risk of developing new allergies while providing stunning, long-lasting results. Designed for salon professionals, this shade offers consistent, predictable performance across all applications.
Quick Take
Whether you are covering grays or creating a high-impact brunette look, this shade delivers reliable performance every time. The color result is deeply saturated, offering a true-to-tone dark intense brown that lasts. Key value points include:
- Deep, cool-toned dark brown with intense coverage
- ME+ technology for improved allergy safety profile
- Consistent, predictable color development
- Excellent gray coverage for mature clients
- Professional-grade formula for salon-only application
- Works seamlessly with the Koleston Perfect system
Why Pros Choose It
Salon professionals trust Koleston Perfect for its reliable color delivery and the superior condition of hair after processing. The 33/0 Dark Intense Brown shade is a staple in backbars because it provides a true, cool-toned brunette that doesn’t fade toward red or brass over time. Its natural depth makes it an ideal base for multi-dimensional color services or for clients who want a solid, sophisticated dark brown without any warmth.
The inclusion of ME+ technology represents a meaningful advancement in color safety, allowing stylists to use a full range of shades with added confidence. This formulation also reduces the need for pre-pigmentation on porous hair or lighter bases, saving time and product during appointments.
Key Benefits
Every application delivers professional-grade results that keep clients returning for touch-ups. The formula works efficiently across various service types including full-head color, regrowth retouches, and glossing services.
- Delivers a pure, dark intense brown shade with zero unwanted warmth
- High-performing gray coverage for 100% resistant grays
- ME+ molecule reduces the potential for new allergic reactions
- Long-lasting color retention with minimal fade between services
- Leaves hair feeling conditioned and with a healthy-looking shine
- Even color deposit from root to tip on most hair textures
- Compatible with all Koleston Perfect developers for flexible lift
- Low-ammonia formula for a more pleasant client experience
Features That Matter
This professional color is engineered for the speed and precision of a busy salon environment. The following features directly impact efficiency, safety, and client satisfaction.
- ME+ Molecule: A safer alternative to traditional PPD/PTD that reduces allergy risk without compromising color depth.
- 33/0 Shade Number: Indicates a pure, cool base with no extra tonal modifiers, making it reliable for mixing and correcting.
- Vibrant Pigment Load: Higher concentration of color molecules for intense results in one application.
- Consistent Viscosity: Easy to mix and apply without dripping or running, perfect for precision techniques.
- Oxidative Permanent Formula: Provides lasting change that won’t wash out over time when properly maintained.
- Seamless Mixing: Blends evenly with assigned developer for lump-free, uniform color coverage.
How to Use
Proper mixing and application ensure the best possible outcome for every client. Always follow the full Koleston Perfect professional usage guidelines and perform a patch test before any service.
- Perform a patch test 48 hours before each color service.
- Select the Wella Professionals developer strength (1.9%, 4%, 6%, 9%, or 12%) based on desired lift and gray coverage needs.
- Mix 33/0 with the developer in a 1:1 ratio using a non-metallic bowl and precision tint brush.
- Stir until the mixture is smooth and completely uniform in color and texture.
- Apply to dry, unwashed hair starting at the roots for maximum coverage.
- Process for 30 to 45 minutes at room temperature depending on desired intensity and gray resistance.
- Rinse thoroughly with lukewarm water until the water runs clear; follow with the appropriate shampoo and conditioner.
- Dry and style as usual; assess color result under natural light before applying any finishing treatments.
Specs & Details
This product is designed exclusively for professional use in licensed salons and beauty institutions. The color is part of the Wella Professionals Koleston Perfect ME+ system.
- Brand: Wella Professionals
- Product Type: Permanent hair color
- Shade: 33/0 Dark Intense Brown
- Technology: ME+ (advanced allergy management)
- Application Type: Professional use only
- Format: Cream colorant
Pro Tips
Experienced colorists can maximize the performance of 33/0 Dark Intense Brown by using a few practical techniques. These tips help ensure consistent, standout results for every client.
- For ultra-dark results on resistant gray hair, apply a slightly thicker mix to root zones and increase processing time to 45 minutes.
- Use 33/0 as a base color for balayage or highlight services to create a solid dark canvas that makes lighter tones pop.
- When correcting brassiness on previously lightened hair, mixing 33/0 with a small amount of a blue-based dark shade can neutralize unwanted warmth.
- Always record the exact mixing ratio and developer strength in client notes to reproduce the shade match during future appointments.
