RPR Colour U 4.22 100ml is a professional permanent hair colour designed to deliver intense violet brown tones with deep, cool reflect and high-impact colour intensity. This double violet (.22) formulation enhances pigment concentration, making it ideal for bold fashion results or neutralising unwanted yellow and warm undertones.

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. As part of a hybrid system, it can achieve both permanent and demi-like results depending on application, offering flexibility for professional use.

Key Benefits:
• Double violet tone for intense, cool results
• Helps neutralise unwanted yellow and warm undertones
• Deep, rich brunette finish with vibrant reflect
• 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 intense violet or cool-toned brunette results