RPR Colour U 4.56 100ml is a professional permanent hair colour designed to deliver rich red violet brown tones with intense depth, vibrancy, and multidimensional shine. This shade blends deep red and violet reflects to create a bold, glossy brunette finish with enhanced richness and colour intensity.

The Colour U system is a superior professional hair colour cream enriched with Cashmere Keratin and Black Pearl Minerals, helping to condition, smooth, and strengthen the hair during the colouring process while enhancing shine and softness. It also includes UV reflectors to help protect the hair and maintain long-lasting colour vibrancy.

This advanced formula delivers consistent, fade-resistant colour with excellent grey coverage and reliable salon-quality performance. The Colour U range is a low-ammonia system with intermixable shades, allowing flexible and customised colour results.

Key Benefits:
• Red violet tone for rich, vibrant brunette results
• Multidimensional colour with depth and shine
• Long-lasting, fade-resistant performance
• Excellent grey coverage
• Enriched with keratin for smoother, conditioned hair
• UV protection to maintain colour longevity
• Professional salon-quality results

How to Use:
Mix with developer in a 1:1.5 ratio (e.g. 50g colour + 75g developer). Apply evenly to dry hair, process as required, then rinse thoroughly and follow with conditioner.

Ideal For:
Permanent hair colouring, grey coverage, and achieving rich red-violet brown tones