Wella Professionals Koleston Perfect Permanent Hair Dye 7/37 Medium Blonde Golden Brown 60 ml

Wella Professionals Koleston Perfect ME+ Rich Naturals 7/37 is a permanent oxidative hair color cream designed to deliver warm, medium blonde results with golden-brown reflections. This professional-grade formula utilizes ME+ technology to reduce the risk of developing new hair color allergies while providing pure, vibrant color results.

• Shade: 7/37 Medium Blonde Golden Brown
• Coverage: Up to 100% grey coverage when used as directed
• Technology: ME+ dye technology and Metal Purifier for pure color
• Finish: Glossy, natural-looking shine with long-lasting wear

This creamy permanent hair dye is part of the Rich Naturals family, offering a balanced blend of warmth and depth. The formulation ensures even application and consistent color development, suitable for all hair types seeking a salon-quality finish at home or in a professional setting.

To use, mix the 60 ml tube with Welloxon Perfect developer in a 1:1 ratio. The developer strength determines the lift: 4% for tone-on-tone, 6% for up to 1 level, 9% for up to 2 levels, and 12% for up to 3 levels. Processing time typically ranges from 15-25 minutes with heat or 30-40 minutes without heat.

A patch test is required 48 hours before use to check for sensitivity. Results may vary based on individual hair condition and previous treatments. Store in a cool, dry place away from direct sunlight.