CoQ10 vs PQQ
Written by Aaron CuhaReviewed Sep 2026
The short answer
Two supplements for the cell's power plants, usually sold in the same capsule. CoQ10 has a trial of real health results in heart failure. PQQ raised a power plant building protein, PGC-1alpha, more than a dummy pill in a six week training study, and it did not change fitness at all.
- CoQ10 people
- 162
- CoQ10 nulls
- 1
- PQQ people
- 116
- PQQ nulls
- 2
Dose
No human dose established
Amounts that were given in studies sit in Human evidence on this page. None of them is a personal dose.
2 completed trials, 162 people given it
Dose
No human dose established
Amounts that were given in studies sit in Human evidence on this page. None of them is a personal dose.
3 completed trials, 116 people given it
First-hand reports are counted on each profile and never added together. This page sets two published records side by side. It does not pick a winner.
Column A
CoQ10Coenzyme Q10 (ubiquinone and ubiquinol)
One strong study in people with serious heart failure cut major heart problems from 26% to 15%. For statin muscle pain, the reason most people take it, it did not help.
Column B
PQQPyrroloquinoline quinone, usually sold as the disodium salt
Sold to grow new mitochondria, the cell's power plants. In a six-week training study, PQQ raised one mitochondria-building protein more than a dummy pill did, but did nothing for fitness. A study in human skin cells found no new mitochondria at all.
Side by side, on the facts we can check
| What we compare | CoQ10 | PQQ |
|---|---|---|
| Category | Antioxidant | Antioxidant |
| FDA status | Sold as a dietary supplement in the United States. Not approved to prevent or treat any condition. Approved as a drug in some other countries for certain heart conditions. | Sold as a dietary supplement in the United States. Not an approved drug for any use, anywhere. |
| Half-life | Roughly 33 hours after oral dosing. Absorption is poor and highly dependent on fat co-ingestion, which is why dosing with a meal containing fat is the standard instruction. | Not characterised here. We could not resolve a primary human pharmacokinetic study, so no figure is stated. |
| Molecular weight | 863.3 Da. Ubiquinol is the reduced form, 865.4 Da, marketed as better absorbed; head-to-head clinical outcome data comparing the two do not exist. | 330.2 Da for the free acid; products usually contain the disodium salt |
| How it works | Your cells make CoQ10 on their own. It sits inside the mitochondria, the parts of the cell that make energy, and helps pass energy along. In one of its forms, ubiquinol, it also works as an antioxidant and helps recycle vitamin E. Statins block an enzyme your body uses to make cholesterol. The same pathway also makes CoQ10. That shared pathway is why people thought CoQ10 would fix statin muscle pain. The idea makes sense, and the studies still found nothing. A good theory is not a result. | PQQ flips back and forth between two chemical states. That lets it act as an antioxidant and as a signal inside cells. The proposed route is switching on AMPK, an energy sensor, which then turns up PGC-1alpha, the protein that drives new mitochondria. That has been shown in a rodent model of Parkinson's disease and in mouse work. In the one human study that measured it, PGC-1alpha did rise more with PQQ during training. In human skin cells in a dish, new mitochondria did not increase. |
| Studies in people | 3 | 4 |
| Evidence | Moderate: 2 completed trials, 162 people given it | Moderate: 3 completed trials, 116 people given it |
| Legal status, US | Sold as a supplement | Sold as a supplement |
Frequently asked questions
What is the difference between CoQ10 and PQQ?
CoQ10: One strong study in people with serious heart failure cut major heart problems from 26% to 15%. For statin muscle pain, the reason most people take it, it did not help. PQQ: Sold to grow new mitochondria, the cell's power plants. In a six-week training study, PQQ raised one mitochondria-building protein more than a dummy pill did, but did nothing for fitness. A study in human skin cells found no new mitochondria at all.
Which has stronger research evidence, CoQ10 or PQQ?
Each compound gets a band worked out from facts we counted, with the math shown. CoQ10 is Moderate (2 completed trials, 162 people given it). PQQ is Moderate (3 completed trials, 116 people given it). That counts how much has been done in people. It does not rate whether either one works, and neither one is called the winner.
Are CoQ10 and PQQ FDA-approved?
CoQ10: Sold as a dietary supplement in the United States. Not approved to prevent or treat any condition. Approved as a drug in some other countries for certain heart conditions.. PQQ: Sold as a dietary supplement in the United States. Not an approved drug for any use, anywhere..
Reviewed Sep 2026. This page puts two published records side by side. It is for learning, and it is not medical advice. When this site shows a dose, it is the dose a trial or a clinic actually used, or what people say they did, with the source attached. None of it tells you what to take.