Invest in shampoos and conditioners specifically formulated for colour-treated hair. These products help lock in colour and prevent premature fading.
Wash your hair with lukewarm or cool water instead of hot water. Hot water can strip away colour molecules and lead to faster fading.
Excessive use of heat-styling tools like flat irons, curling irons and blow dryers can cause colour to fade.
UV rays from the sun can cause colour-treated hair to fade. Wear a hat or use a UV-protective spray when spending extended periods in the sun.
Wash your hair less frequently to prevent colour from being washed out. Consider using dry shampoo between washes to keep your hair fresh.