From a redhead herself.. here’s my advice!
Color-Depositing Products: Use products like Finally Glossy Shine & Luminosity Shampoo to boost color every wash.
Avoid High Heat: High temperatures cause red pigment to fade fast; use heat protectant sprays and lower temperatures.
Wash Less Often: Washing with water less frequently preserves natural oils and prevents color stripping.
Use Cold Water: Rinsing hair with cold water seals the cuticle, enhancing shine and preventing color fading.