16 Products That Work Wonders on Dry, Damaged Hair

Amika Water Sign Hydrating Hyaluronic Hair Oil ($32)

I like to run this hydrating hair oil through my ends before going to sleep. My hair tends to get more coarse and dry overnight, and I find this product, which contains an eight-oil blend, to be a good preventative measure. A little goes a long way, so you really get bang for your buck. After all, you don't want to add too much oil to your hair so that you wake up with greasy-looking roots.