Chlorine & highlights

[genno]

My hair is highlighted and I recently joined a gym with a pool that I expect to use a lot.

What's a good shampoo and/or conditioner or treatment to fight chlorine? I remember it turning my hair kind of greenish as a kid. Or, generally, what are some good choices for color-treated hair? I'm looking for stuff available in drugstores, but mostly looking for some options to choose from.

Thanks!