I like adding a tablespoon of honey (a natural humectant), 1 tablespoon of olive oil and a few drops of Rosemary essential oil to half a mason jar of coconut milk. I prefer using Thai brand of coconut milk. This can be used as a pre-poo while detangling hair. You really can't go wrong. Either way, you'll have nice, pliable, soft hair. Just remember to add honey/and or oil. Coconut milk contains protein and can be drying to the hair, this is why I use honey and olive oil.
Now, I don't deep condition with heat. Violet doesn't like that (found that out during the winter). My preferred method is steaming in the shower or with a hair steamer. By the end of the day even in this humidity my hair is still soft and manageable. I usually use this mixture once or twice a month. Remember, moisture and protein balance is key to the overall health of your hair!
I freeze my leftovers until I'm ready to use it again. Give it a try, you have nothing to lose and everything to gain.