Resolve is a naturopathic product and you can find more information on it here.
I have no personal experience with it, but at least it seems to be low carb friendly since it is sweetened with Xylitol and Sucralose.
I have to say that I find it a bit odd that what is listed as the main active ingredient, cestemlenol, doesn't come up on a Google search and I would be a little nervous about using a product containing an ingredient that I can find no information on.