So I've been seeing "CBD" hemp-derived products, edibles mainly but also caplets and oral oils, popping up in a definitely non-legal state at ridiculous prices.

My question to those in the know is: how do these products vary in efficacy from renowned CBD products such as those derived from the the famous Charlotte's Web strain in legal states?

Are there "legal" products available anywhere that provide the same efficacy as CBD products in actually legal states?

Or are these just hemp (snake) oil being peddled to a generally oblivious population to capitalize on lack of actual availability of real product?