Redken Extreme CAT Treatment is a targeted protein treatment designed to strengthen weak, damaged hair.This intensive rinse-out formula helps reinforce hair fibre and reduce breakage, leaving hair feeling stronger and more resilient. Who It’s For / What It Solves Ideal for hair that’s damaged from colouring, chemical services or heat styling, this treatment helps rebuild internal strength and prevent future breakage. Key Benefits Helps strengthen hair and reduce breakage Reinforces weakened, damaged hair fibre Improves hair resilience after chemical services Leaves hair feeling stronger and more manageable Who It’s Best For Weak, damaged or over-processed hair. Suitable for professional salon use or targeted home treatments. How to Use (Quick Guide) After shampooing, apply to towel-dried hair and distribute evenly. Leave on for 3–5 minutes, then rinse thoroughly. Use as needed depending on hair condition. Why Buy from Charlie’s Hair & Beauty Family-run since 1986 Authentic stock Fast UK delivery