cp formulas

Here's a question out of left field... Does anyone have any experience using pure powered caffeine and adding it to a cp soap formula to make a caffeinated soap? Specifically - I want to use - https://amoretti.com/collections/extracts/products/caffeine-extract-powder-ws The Caffeine Powder is...

I got lazy and was using premixed oils from BB for awhile, but I got tired of the expense and long wait times. So here's a formula I came up with and ran through lye calc. I'd really appreciate input. I roughly followed percentage guidelines from Modern Soap Making in terms of Hard Oils, Hard...