Speaking of oils, the Lush Cosmetics Renee's Shea Souffle Hair & Scalp Oil (£12) is the second step in the LOC method, but I'd argue that you could probably also use it as your third step if you're more of an LCO person. This one is made with castor oil (to strengthen the hair), coconut oil (to moisturise and condition), and shea butter (to soften), and it comes in the form of a paste or butter, though you can melt it a little by rubbing it in between your hands before applying it to your hair.
I applied this after using the Super Milk Hair Primer, and it definitely made my hair feel softer and more moisturised. Even though it was a little thicker than the hair oils I normally use, I was surprised to see how well it worked for my hair, particularly my ends. I also added some to my scalp after parting my hair in sections and twisting it out.