I make my own based on Barb's recipe in the recpe's section. I fiddled with it a bit and had it tested and sell it.
Shouldn't really make your lotion from scratch and just go ahead and sell. Testing is important to make sure your preservative is working. There's a thread or a sticky or something on here about where to get your lotions tested. Buying from someone is a safer bet, but you still need to be CLEAN, CLEAN, CLEAN when you make it to keep beaties at bay!