There is so much to know when you make cosmetics like soap, lotions, salves, balms, scrubs…from proper chemistry and safe preservation to the FDA regulations for labeling the finished products. It does not matter if you sell one or two products to friends, at the local Farmers Market or on EBAY, everyone has to follow proper cosmetic formulation rules in order to produce a safe and healthy product and the FDA regulations apply to everyone!
Here is my MUST READ list. I am fortunate that my past career working for the Handcrafted Soap Makers Guild and later running the Natural Ingredient Resource Center, and selling advertising space for The Herb Quarterly magazine, introduced me to these authors personally. I highly recommend any and all of them!