I'd be wary of anything that uses shea butter BG. It might be OK, being a vegetable fat. Generally it's going to depend on the concentration of fat/oil to water, with something like Gaia it's likely to be a low concentration, it's a fairly light lotion I believe.

You could always try smearing it on a piece of cloth, leaving it for a few hours to settle, then washing it. Do that a few times (to see if you get a build up), and then pour some water onto the cloth to see if the water is easily absorbed, or if it rolls off. If it rolls off, you've got yourself a barrier.