After rinsing out your conditioner in the shower, you'll want to apply a leave-in conditioner to help smooth — and soothe — your strands. And UV protection is crucial here, especially for protecting your hair color (natural or not).
Instead of going for two different products, I'm loving Fekkai's Apres Soleil Cream ($20), a new launch from the brand. It literally means "after sun," but I prefer to use it before stepping foot into the sunlight to help protect my color. It works on wet or dry hair, and it salvages dry, brittle ends due to a day at the beach or too much heat styling.
Frédéric Fekkai (yes, the man himself) told me that the sunflower seed oil used in his Soleil collection was inspired by what a farmer told him: it's great for blocking UVA rays, and since sunflowers (and other plants like olives) move with the sun, it's guaranteed to protect your hair throughout the day. Plus, it adds a beautiful sheen to the hair.