Just got red highlights. What's a good shampoo to keep them fresh?

Will they fade in the sun?Just got red highlights. What's a good shampoo to keep them fresh?
John Frieda Radiant Red Shampoo...I'd dyed my hair red for years and years, and this is the only thing I found that kept the color from fading...Just got red highlights. What's a good shampoo to keep them fresh?
reds are great but fade very quickly. try the color glow line from Goldwell (buy at salons) they have a whole line for reds with pigments in it to keep your hair looking fresh
use pantene pro v their produts are quite good