Coconut oil - one of my favourite ingredients for many skin care products, it creates a lovely lather in soaps.
Olive oil - conditioning, cleansing, mild and nourishing. Olive oil soothes and lubricates the skin while allowing the skin to breathe.
Palm oil (sustainably sourced) - produces a hard bar of soap, therefore lasting longer, and lathers very well.
Castor oil - creates thicker and creamier bubbles.
Shea butter - another favourite ingredient of mine for its moisturising, healing and regenerative properties.