I've been using the SheaMoisture Jamaican Black Castor Oil Strengthen & Restore Treatment Masque ($12) on my hair as a deep conditioner for more than a year now. It's made with castor oil that helps promote hair growth and prevent breakage, but to get more out of it, I like to throw a few scoops of this into a blender along with a whole banana, olive oil, honey, and water to thin the mixture out a little and make it easier to penetrate my low porosity strands.
This is the mask recipe I've been using for my last handful of wash days, and since trying it out, I've noticed that my hair sheds significantly less, and it also doesn't feel as dried out in between washes.