You can definitely doctor up the bases.
If you want to add cocoa butter, yes, it will make it a bit more hard so you might add 2 parts cocoa butter to 1 part liquid oil just to keep your consistency similar to what you're wanting.
Essential Oils - I would stick to 1-2% of the total by weight (max). I start out at .5% and then go up from there. Things like Peppermint, Spearmint will tingle and get cool. Clove and Cinnamon Leaf, I definitely don't recommend (they burn and make your skin numb) so yes, there is just a bit of research with essential oils for each individual one. =)
Extracts - if they're oil soluble, go for it! If they're water soluble, they won't mix in.
_________________ Happy Soaping!
Anne-Marie
blog: www.soap-queen.blogspot.com
supplies: www.brambleberry.com
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