Unopened. Redken Color Extend Magnetics Sulfate-Free Shampoo is prescribed to gently cleanse color treated hair to enhance shine and maintain hair color vibrancy. Color Extend Magnetic's formula features a multi-targeted delivery system with key ingredients to prevent hair color fade and promote hair health. With an acidic formulation, pH levels are balanced while caring for the tone and vibrancy of professional color between salon services. BENEFITS • Sulfate-free shampoo for color-treated hair • Gently cleanses while enhancing vibrancy • Acidic formula balances pH levels for enhanced hair color vibrancy • Amino-ions help seal in hair color