Where can I get a hair product that will keep your hair color in?

I just got my hair done a few days ago and i noticed that my hair color is coming out. I need help finding a shampoo or stay in products that will keep my hair die from coming out.Where can I get a hair product that will keep your hair color in?
I would suggest Sally's! Also wash and rinse your hair in cool water. As cold as you can stand!Where can I get a hair product that will keep your hair color in?
REDKEN for coloured hair is the best shampoo to use. You can get it on EBAY. You can also buy it in boots. There other shampoos are good as well my hair takes forever to grow and you can get redken vivagen and it grew to below my shoulders in 9 months and my hair was really short. I hope this answer helps
If you dyed darker, you can't really prevent it from coming out. You can use shampoo's and conditioner's that deposit color, like John Freida or Suave, but nothing is going to stop the color from coming out over time.