Ubiquinone is less expensive to process and manufacture
reddit.com/r/Supplements/comments/t573da/comment/hz3z70n
Ubiquinol is more unstable and tends to convert back into ubiquinone in the capsule
reddit.com/r/Supplements/comments/t573da/comment/hz3z70n
Ubiquinol has a milky white appearance whereas ubiquinone is yellowish
reddit.com/r/Supplements/comments/t573da/comment/hz3z70n
In a 2023 meta-analysis of older people, ubiquinone had evidence of a cardiovascular effect, but ubiquinol did not.
Coenzyme Q10 - Wikipedia
Ubiquinol is the reduced form of CoQ10, whereas ubiquinone is the oxidized form.
Your body converts the two forms back and forth.
As we get older the conversion process starts to work less efficiently so people take the reduced form aka active form of ubiquinol.
reddit.com/r/Supplements/comments/t573da/comment/hz3qrwp
Ubiquinol demonstrates a better bioavailability at a much lower dosage than ubiquinone.