Each soap maker will have their own distinctive recipes and oil preferences for a hundred different reasons. Each different kind of oil brings with it an array of beneficial properties for the soap.
Below is a list of the oils I use and my reasons for doing so:
COCONUT OIL: is a favourite of most soap makers as it creates a nice hard bar with a big fluffy lather and plenty of glycerine.
OLIVE OIL: Super moisturising, olive oil will readily absorb into the skin. It has high humectant properties which attracts moisture into the skin to hydrate. A 100% olive oil soap is known as Castille soap. Olive oil produces a very soft soap, so Castille takes around one year to cure but is an absolutely beautiful soap to use.
SHEA BUTTER: I choose to add a generous amount of shea butter for a luxurious thick creamy lather. Shea butter has large amounts of unsaponifiable compounds, which is a fancy way of saying it doesn't get caught up in the chemical reaction and so is free instead to get caught up loving your skin.
COCOA BUTTER: produces a hard bar with a stable lather, and is very conditioning.
AVOCADO OIL: is known for its rejuvenating effect on all types of skin. It is loaded with vitamins, amino acids, potassium, and proteins and is a key player in turning a good bar of soap into a great bar of soap.
CASTOR OIL: acts as a humectant, drawing moisture to the skin. In the right quantities it produces a thick creamy lather with large bubbles.
RICEBRAN OIL: rich in vitamin E and antioxidants it contributes to make a mild, creamy and moisturising bar of soap.