you don't HAVE to do that....you can sell what you actually believe in, if the person wants a fat burner? point out the fat burner you use, or a close facsimile of it that your store carries. they want a protein powder? easy, for sure you use one of the protein powders in the place. You don't have to sell something you don't believe in, and if its your own store? you should be stocking it with good shyt, not G N C mandated products. Now that being said? yeah if you want your "commission" (which is minimal at most places) while working for a larger outlet, you have to sell the house product. but we are talking more of a mom and pop nutrition store idea here. OH, and as far as women customers? your boyish good looks will get you so far, but they like for you to have conversations with them and stimulate them that way....men are totally different, 100% they will go for the hot young girl behind the counter no conversation necessary LMFAO.......