What happens when you take coq10 with pqq?
Coenzyme Q10 (CoQ10) and pyrroloquinoline quinone (PQQ) are two of the most studied mitochondrial nutrients, and they work through complementary, non-overlapping mechanisms. Rather than competing or interfering with each other, they act on two different parts of the same system: one tunes up the engines you already have, the other helps you build more of them.
- CoQ10 carries electrons. CoQ10 sits in the inner mitochondrial membrane and shuttles electrons between Complex I/II and Complex III of the electron transport chain, a step that helps drive ATP (cellular energy) production. It also acts as a fat-soluble antioxidant that protects mitochondrial membranes from oxidative damage.
- PQQ signals for new mitochondria. Instead of working inside existing mitochondria, PQQ activates a master regulatory protein called PGC-1alpha, along with the NRF-1 and NRF-2 transcription factors. Together these coordinate the genetic instructions for mitochondrial biogenesis — the making of new mitochondria.
- The two effects stack rather than overlap. Taking both means you are supporting the number of mitochondria (via PQQ) while supporting how efficiently each one runs (via CoQ10). Neither nutrient is correcting a deficiency in the other; they simply address different aspects of mitochondrial health.
- There is no known harmful interaction. This is a synergy, not a clash. For most people the two are well tolerated together, and no significant safety interaction between them has been described.
It is worth being measured about the strength of this synergy. The mechanisms are well established, and limited human evidence suggests a real added benefit, but the overall clinical evidence base remains modest rather than definitive.
Why is this important?
Mitochondrial function tends to decline with age and is involved in fatigue, cognitive slowing, and several chronic conditions. The body's own CoQ10 production also falls as people get older, and statin medicines can lower it further by blocking the same pathway the body uses to make it. Supporting both the quantity and the quality of mitochondria therefore becomes more relevant with age and in certain medication contexts.
The pairing is of particular interest for tissues with high energy demand — the heart, brain, skeletal muscle, and kidneys. The heart holds the highest concentration of mitochondria of any organ, which is part of why CoQ10 has long been studied in cardiovascular settings.
That said, the practical importance here is opportunity, not risk. There is no dangerous interaction to avoid. The reason to pay attention is simply that, if you are going to take these two nutrients, they make sense together and there is some human evidence — modest but real — that the combination may help with markers of cognitive function and fatigue more than one of them alone.
What should you do?
You do not need to avoid this combination — it is generally safe. The goal is to take it in a way that maximises absorption and to keep expectations realistic.
- Before you change anything: if you take a statin or have a heart or kidney condition, mention the plan to your doctor or pharmacist first. They can confirm it fits with your other medicines and tell you what, if anything, to watch for. Settle on doses with them rather than guessing.
- Every day: take CoQ10 and PQQ together with a meal that contains some dietary fat — for example olive oil, avocado, eggs, or nuts. Both are fat-soluble, and CoQ10 in particular is absorbed poorly without fat. Morning dosing is a reasonable default; a small number of people find PQQ mildly stimulating late in the day.
- After you start: give it several weeks before judging the effect. Because building new mitochondria is gradual, any change in energy or mental clarity tends to appear over weeks rather than days. If you notice no benefit after a fair trial, it is reasonable to stop.
None of this requires precise milligram targets to be useful — the principles (take with fat, be patient, review with a professional if you are on relevant medication) matter more than any specific number, and the right amounts are best confirmed with your pharmacist or doctor.
Which specific products are affected?
Many cardiovascular and longevity-focused supplements now bundle CoQ10 and PQQ in a single capsule, so you may already be taking both without realising it. A few things help when choosing:
- Form of CoQ10: the ubiquinol form is generally better absorbed than ubiquinone, especially for older adults or those with absorption concerns. Standardised branded forms such as Kaneka Ubiquinol and BioPQQ are the ones most often used in research.
- Carrier matters: CoQ10 suspended in an oil base (MCT, rice bran, or olive oil) is absorbed far better than dry CoQ10 powder, which has poor bioavailability.
- Combination stacks: products that add acetyl-L-carnitine, alpha-lipoic acid, or magnesium also target mitochondrial function and are reasonable, though stacking many actives in one capsule makes it harder to adjust any single one.
If you take a statin, the case for CoQ10 specifically is stronger, and PQQ is a sensible add-on rather than a necessity.
The science behind it
The most directly relevant support comes from a human trial of the actual PQQ-plus-CoQ10 combination, alongside mechanistic work on the individual nutrients:
- Koikeda T, Nakano M, Masuda K (placebo-controlled human trial, 2011; humanclinicals.org/project/pqq) — looked at older adults with subjective forgetfulness taking PQQ with CoQ10 over about 24 weeks and reported improvements in higher brain function versus placebo. This is the most directly relevant human evidence for the pairing.
- Castillo-Castrejon et al. (2026; PMID 40810470) — a more recent review discussing roles for CoQ10 and PQQ in mitigating obesity-associated reproductive dysfunction. It supports the underlying mitochondrial biology but does not, on its own, establish a general human energy benefit.
The honest summary: the mechanisms are well understood and limited human data point to a modest added benefit from combining the two, with good tolerability. It is a plausible, low-risk synergy with a growing but still limited evidence base — not a proven treatment.
Frequently Asked Questions
Is it safe to take CoQ10 and PQQ together?
For most people, yes. The two work through different mechanisms, are generally well tolerated, and have no described harmful interaction. If you take prescription medication or have a heart or kidney condition, confirm with your doctor or pharmacist first.
Do I need to take them at the same time of day?
Taking them together with a fat-containing meal is convenient and helps absorption, since both are fat-soluble. Morning is a reasonable default; some people prefer not to take PQQ late in the day because they find it mildly stimulating.
How long before I might notice anything?
Allow several weeks. Building new mitochondria is a gradual process, so any change in energy or mental clarity typically appears over weeks rather than days.
Why does dietary fat matter?
Both CoQ10 and PQQ are fat-soluble. Taking them with some dietary fat — olive oil, avocado, eggs, nuts — meaningfully improves how much is absorbed, especially for CoQ10.
Should I choose ubiquinol or ubiquinone CoQ10?
Ubiquinol is generally better absorbed than ubiquinone, which can matter more for older adults or anyone with absorption concerns. Either can work; the form is one factor among several.
Does taking PQQ mean I can skip CoQ10 (or vice versa)?
No — they are complementary, not interchangeable. PQQ supports making new mitochondria; CoQ10 supports the function of existing ones. That is precisely why they are paired.
Key takeaways
- CoQ10 and PQQ are a synergy, not a conflict — they target different parts of mitochondrial health and have no known harmful interaction.
- Take them together with a meal containing some fat to aid absorption; both are fat-soluble.
- Give it several weeks before judging any benefit, since mitochondrial changes are gradual.
- Human evidence for the combination is positive but modest — limited trial data suggest added cognitive and fatigue benefits, not a proven effect.
- Review the plan with your doctor or pharmacist if you take a statin or have a cardiovascular or kidney condition.