Vitamin E oil/Fatty Oils help with damage if you feel that could be part of the dryness as well. I add Wheat Germ Oil to my Conditioners and Homemade Oil Mixtures/Serums to help with damage and breakage.
You need a oil also that's thick (Primary Oil) to help with the Secondary Oils. Jojoba is a nice oil but if used with other secondary oils you don't have anything to make it STICK. Olive Oil is considered a Primary Oil because it's a little thicker than Jojoba, Peppermint, but oils like Castor Oil are much much thicker, Coconut Oil non-melted is nice too though I prefer it on my scalp than my strands. Shea Butter is nice too, does Shea Butter help you with moisture and sleekness or do you find it too heavy?
Do you mix and make your own oils/butters/creams?