Try hair conditioner, you can buy it by the quart. It is water base. Will not degrade latex.
Yeah, but I will never be able to hear the phrase, 'deep conditioning' the same way again.
This is totally TMI, but DH and I use coconut oil (for EVERYTHING) and he associates the smell with both sex and popcorn. Once we were, well, feeling amorous, and he said, "I love you...you smell like popcorn!" It cracked us up!!