As I Am leave-in is great and a real-fave among many here. People also seem to get along well using KCKT as a leave-in.

If you're looking for a very cheap option, I've been trying the Alba Botanica leave-in (which I found for only a few pounds) and I am really loving the results:
http://www.naturallycurly.com/curlpr...nditioner-7-oz
3B. Medium porosity. Medium Thickness. High density.

Low-poo: Shea Moisture Coconut & Hibiscus
Co-wash & conditioner: Jason Moisturising Aloe Vera

Leave-in & refresher: Aunt Jackie's Curls & Coils Quench Moisture Intensive
Gel: Ouidad Climate Control Heat & Humidity
Treatments: Coconut Milk before washing, once every 2 weeks, followed by an ACV rinse

UK curly. CG since October 2013.
Growing my hair out Rapunzel-style