Yup, for soap, I would recommend 1 tablespoon per lb of oils. For lotions and butters? I would make it in scrubs and stuff, but not leave on products, and for personal use only. It'll grow mold pretty quick. I would make a scrub and store it in the fridge if I had any leftovers (but I'd be apt to use it on my whole body, not just my face) and use it or toss it in 3 days.