Adds Hardness to Bar?:
No...
Creates Fluffy Lather:
No...not really - though it does increase the lather
Creates Stable Lather:
YES! Helps increase lather quite a bit.
Adds Moisturizing Qualities?:
Yes - though thick and sticky straight out of the bottle, it is easily absorbed by the skin.
Other qualities:
Gives a creamy bubbly quality to the soap. There's no other oil quite like it. You only need to use about 4-6% in your recipe to see a difference. Note: Castor oil will speed up your trace.

