Redken Color Extend Magnetics Sulfate-Free Conditioner16. 9 oz What It Is Sulfate Free Conditioner for color treated hair What It Does Provides targeted repair with a smooth compact surface Easy detangling with softer, smoother and more conditioned feel What Else You Need to Know Color Extend Magnetics products are formulated specifically for color treated hair. This system is a gentle, non stripping system that protects color from fading, leaving color looking vibrant for longer between salon services.