i've been using blue magic coconut oil hair conditioner (which is actually grease) that i bought from walmart in very small quantities, and its been working pretty well, so you could try that. its very cheap for a pretty good sized tub of it, so its worth a try! i rub a small amount into my hair in the shower, then try to rub some excess out.
"Your head is like a crown on you.
It is as beautiful as Mount Carmel.
Your hair is as smooth as purple silk.
I am captured by your flowing curls."
Song of Solomon 7:5 (NIRV)