I love Fantasia serums. They are great for roller setting and adding a nice sheen to blow dried hair. Serums also help the comb glide a lot easier through my hair. But avoid overdoing it - a quarter size amount on wash day and a dime size amount daily should suffice.

They are available at your local drugstore or super center in the ethnic hair aisle. Or, you can order online. My personal favorite is Fantasia IC HAIR POLISHER Daily Hair Treatment. I apply a quarter size amount during setting for silky smooth hair :)