I personally don't have a fear of mixing. All I meant was anytime you let Joe Public play with the composition of your products you invite the chance of failure. Or at the very least a less optimal result. But if there is plenty of leeway built into the recipe then you are playing it safe.
I'm willing to bet that making a little more objective info available on the products, or how the products interact and compare with each other, would sell a bit more. Maybe a lot more. But never the BS. That's so insulting. I'd love to hear what the chemist has to say. Or at least a dumbed down version to fill in the cracks of knowledge. I've worked for pharmacists, engineers, architects, and economists. Believe me, I know how tough it can be to translate their work to the common man. Glad Dr G keeps you around.