Monat Color Locking Spray + Protective Spray For Coloured Hair UV Protection. Monat COLOR LOCKING +PROTECTIVE SPRAY Infused with REJUVENIQE,134ml. Color Locking + Protective Spray protects against oxidative stress by protecting the hair fibre from pollution by 93.4%* *Based on an instrumental test with standardised hair strands for a period of 21 days. Why It works This leave-in spray extends colour life by sealing the cuticle to help keep colour molecules from fading. Key ingredients guard against damage and the effects of external aggressors and oxidation, locking in colour for long-lasting shine. DIRECTIONS Apply evenly to towel-dried hair Comb through and style as usual.