Think of yourself first. Where do you hang out online? Where do you shop? What kinds of search terms do you use. What communities do you belong to. Since we can (almost) all assume we like our own products, we are our own best predictor of what our customers want/like and where they hang out.
For natural body care, I might look at blogs and forums for 'organic' moms. Heck, the ladies over at The Purse Forum might even like to hear about your stuff, especially if it's luxurious ;)