How to keep black hair from fading?

I need good products that wont fade my hair dye, like some shampoo or other products for color.How to keep black hair from fading?
Use a hair glaze to seal the color better. Black is notorious for fading, but the glaze slows that a lot. Also wash your hair with a shampoo made for colored hair and condition with an intensive conditioning balm to keep the moisture level up.How to keep black hair from fading?
rinse your hair with black tea at the end of shampooing...
Go to Rite Aid and stop at the hair products isle. Look for Pantene! They have shampoo and conditioner for everything! If that doesn't work, try Garnier- I heard they have things for colored hair.
Nothing will keep it fron fading but to get less fading use a shampoo for color treated hair.Redken products or matrix is very good the best .