I have used several types of color protectant shampoos. Although Garnier Fructis Color Shield doesn't completely stop color from fading (I believe it's inevitable), it does a good job to maintain your hair color inbetween color treatments.
Hair can become dry and brittle from too frequent coloring. Garnier Fructis provides your hair with shine, silkiness, and vitality. After each wash my hair is left feeling healthy and soft. It is fortified with vitamins B3 and B6. The shampoo is also fortified with a UV protectant which is good for your hair seeing as though hair can also suffer from sun damage.
I feel that my colored hair is protected reasonably well for an affordable price. Garnier Fructis is available in many stores which is helpful as well. There are often coupons for Garnier products in the Sunday paper which is an added bonus.
After using this shampoo my hair is left feeling wonderful and smelling nice. Overall I think it is a great buy!