I've read they're re-branded "Medicine Flower" with no carrier, pure super concentrated flavorings. I'm specifically interested in the Vanilla, Caramel and Blueberry as I routinely use those flavors when mixing/making hybrid NETs. I've tried every retail offering of those flavorings except Lotus but at $10 for 5ml they're a bit pricey. I'm hoping others have already sampled them and can offer their opinions.