Is sulfate free shampoo better for color treated hair?
  • Kal’s question….As a stylist I have been told to tell my clients to use “sulfate-free” shampoo if they have color-treated(or curly) hair. However, I read in your book that you’ve studied the performance of sulfate-free vs shampoos containing sulfates and didn’t see a difference in hair color fading. Is there anything out there that preserves […] Is sulfate free shampoo better for color treated hair?

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