Don't know anything on glycerol so I can't comment. It's hard to find Q10 without additives, but usually the benefits outweigh the issues unless you have specific allergies/sensitivities.
One thing I wanted to caution you about is to not add anything with the clay. What clay does is absorb retain and excrete. Anything you add with it hoping for other benefits gets absorbed and excreted just like the bad stuff.
It won't harm you, just a waste good supplements/money. In general don't take any other supplements with 2 hours of taking clay internally.