They are basically the same. Ubiquinol is a enhancement and improved form of Co-Q-10. It is supposed to be stronger and easier absorbed by body.

If you shop on line bring up the two and read the products description and you will see the difference and benefits but see they are both considered Co-Q-10 just different forms of it.

You can also go on WEBMD and type in the information you want on a supplement or vitamin and get some really good feedback on it.
Take care!