Avon makes this great weekly deep conditioner called ADVANCE TECHNIQUES Color Protection Restorative Mask for Color-Treated Hair. It goes on smoothly and is not goopy like other deep conditioners and smells great. It leaves hair soft and manageable. According to their website, it should leave color in 5X longer if you combine it with their shampoo and conditioner. Next I will review those products!
It is on sale right now for $4.99 too. Can't beat the price!