AFTER YOU’VE DYED YOUR HAIR
Most kits include a post-color treatment specifically formulated to smooth the cuticle and lock in luster. Don’t skip this step—it helps prolong your hue.
Let the color set
Experts recommend waiting 48 hours before shampooing so the cuticle can close completely. When you do suds up, “use a non-stripping, sulfate-free shampoo and rinse with cool water,” says Tuszynski. “Heat opens up the cuticle, causing the color molecules to slip out easily.” Translation: Your shade might fade quicker than it normally would. Finish with stylers that contain UV filters to help maintain your hair’s vibrancy.
These hotline helpers have heard it all—and can talk you through any dye disaster.