What Is PQQ? Mitochondria, Cellular Energy and What Research Shows

PQQ is often introduced with a dramatic claim: that it “creates new mitochondria.” In supplement marketing, that idea can quickly turn into promises of more energy, faster cellular renewal, and even slower aging.

The real science is more specific.

PQQ, short for pyrroloquinoline quinone, is a redox-active compound that has been studied in relation to cellular signaling, oxidative processes, and mitochondrial biology. Some laboratory research has reported changes in pathways and markers associated with mitochondrial biogenesis.

But a finding in cultured cells is not the same as proving that an oral PQQ supplement builds new mitochondria in every person who takes it.

"PQQ is studied in mitochondrial biology, but 'PQQ creates new mitochondria' is an oversimplification of mainly mechanistic and preclinical research."

What Does PQQ Actually Do?

To understand why scientists became interested in PQQ, it helps to start with redox biology.

Redox reactions involve the transfer of electrons between molecules. These reactions are fundamental to metabolism because cells constantly move electrons as they process nutrients and carry out biochemical reactions.

PQQ has a quinone structure that allows it to participate in oxidation-reduction chemistry.

In certain bacteria, PQQ functions as a cofactor for specific dehydrogenase enzymes. Its established bacterial biochemistry is one reason researchers became interested in whether PQQ might interact with metabolic processes in other biological systems.

However, there is an important distinction between:

PQQ functioning as an established cofactor in certain bacterial enzymes

and saying:

PQQ is a required human vitamin or universal human mitochondrial coenzyme.

Those statements are not equivalent.

Is PQQ a Vitamin?

You may see PQQ called a “new vitamin,” a “vitamin-like nutrient,” or even a “longevity vitamin.”

The scientific history behind this language is more complicated.

In 2003, researchers proposed in Nature that PQQ could function as a redox-cofactor vitamin in mammals based on a proposed relationship with an enzyme involved in lysine metabolism.

That interpretation was challenged in a 2005 Nature correspondence, which questioned the evidence used to identify a mammalian PQQ-dependent enzyme.

As a result, it is not accurate to present PQQ as an established essential human vitamin in the same category as vitamins B6, B12, C, or D.

Why Is PQQ Associated With Mitochondria?

Mitochondria are cellular organelles involved in oxidative metabolism and ATP production.

Because mitochondrial function depends on coordinated metabolic reactions, redox balance, protein activity, and communication between nuclear and mitochondrial systems, researchers study many compounds that may influence mitochondrial-related pathways.

PQQ attracted particular attention after experimental studies reported changes in signaling pathways associated with mitochondrial biogenesis.

This is where much of today's PQQ marketing begins.

But first, it is important to understand what mitochondrial biogenesis actually means.

What Is Mitochondrial Biogenesis?

Mitochondrial biogenesis is a coordinated cellular process involved in increasing and maintaining mitochondrial components and mitochondrial capacity.

It is not simply a mitochondrion appearing “from scratch.”

The process involves communication between nuclear and mitochondrial systems and may include:

• Changes in the expression of mitochondrial-related genes
• Production and import of mitochondrial proteins
• Mitochondrial DNA replication and transcription
• Changes in mitochondrial mass and enzyme activity
• Coordination with mitochondrial remodeling and quality-control processes

One frequently studied regulator in this area is PGC-1α, a transcriptional coactivator involved in coordinating gene programs related to oxidative metabolism and mitochondrial biology.

This does not mean PGC-1α is a simple “make more mitochondria” switch.

It is part of a broader regulatory network.

Why Do People Say PQQ Stimulates Mitochondrial Biogenesis?

A frequently cited 2010 study by Chowanadisai and colleagues examined PQQ in cultured mouse liver cells.

The researchers reported changes in CREB signaling and increased PGC-1α expression. They also observed several experimental markers associated with mitochondrial biogenesis.

This study is an important part of the scientific reason PQQ became associated with mitochondrial biogenesis.

But the experimental context matters.

This distinction is especially important in supplement content.

A mechanistic cell study can help scientists identify a biological pathway worth investigating. It cannot, on its own, establish a finished-product benefit in humans.

Does PQQ “Create New Mitochondria”?

The phrase “PQQ creates new mitochondria” compresses a complex area of research into a marketing sentence.

A more accurate explanation is:

Experimental research has investigated whether PQQ can influence signaling and cellular markers associated with mitochondrial biogenesis.

That is different from claiming:

Taking PQQ directly builds new cellular power plants in the human body.

At this time, the available evidence does not justify presenting mitochondrial creation as a guaranteed human supplement outcome.

Human studies would need to directly evaluate the relevant biological outcomes using defined PQQ forms, doses, study populations, and validated measurements.

What Has Human Research on PQQ Found?

Human research on PQQ is limited compared with the large amount of mechanistic and animal research discussed online.

One small human study by Harris and colleagues examined short-term dietary exposure to PQQ and changes in mitochondrial-related metabolism.

The researchers reported changes in metabolic measurements and metabolite patterns that were interpreted in relation to mitochondrial metabolism.

The study helped support continued investigation of PQQ in human metabolism.

However, it did not establish that:

• PQQ directly increases mitochondrial number in humans
• PQQ guarantees greater daily energy
• PQQ reverses age-related mitochondrial decline
• PQQ improves cognitive function in every user
• PQQ slows human aging
• Every commercial PQQ product produces the same response

The human evidence base remains product-, dose-, population-, and outcome-specific.

A study using one amount or formulation of PQQ should not automatically be used as proof for another dose, a multi-ingredient formula, or a finished supplement pack.

Does PQQ Increase Energy?

This question requires a distinction between energy metabolism and feeling energetic.

Mitochondrial metabolism is part of the cellular processes involved in ATP production.

Researchers may therefore study mitochondrial-related compounds in the context of cellular energy metabolism.

But feeling tired is a human symptom with many possible causes.

Sleep quality, sleep disorders, iron or vitamin B12 status, medications, hormonal changes, thyroid conditions, stress, diet, physical activity, and other health factors can all be relevant when someone feels persistently exhausted.

Therefore:

Researching PQQ in mitochondrial metabolism does not mean PQQ is a treatment for unexplained fatigue.

If low energy is your main concern, start with our guide to common reasons women may feel more tired after 40.

PQQ vs. NAD+: Are They the Same Thing?

No. PQQ and NAD+ are different chemical entities with different biological contexts.

NAD+ cycles with NADH during metabolic reactions and is also consumed by several classes of NAD+-dependent enzymes.

PQQ has a different chemical structure and a different research history.

To understand NAD+ in more detail, read our guide to what NAD+ is and how it participates in cellular energy metabolism.

Are PQQ and NAD+ Synergistic?

You may see supplement marketing describe PQQ and NAD+ as a “perfect synergy.”

The usual explanation is that PQQ “builds new mitochondria” while NAD+ “makes those mitochondria run at peak efficiency.”

That is a compelling marketing framework, but it is too definitive scientifically.

PQQ and NAD+ are both studied in cellular metabolism and mitochondrial-related biology, but that does not automatically demonstrate a clinically meaningful synergistic effect when the two appear in the same finished supplement.

Demonstrating synergy requires evidence showing that the combined intervention produces an interaction or outcome beyond what would be expected from the components individually.

Without product-specific evidence, it is more accurate to say that a formula includes ingredients studied in different areas of cellular and mitochondrial biology.

How Much PQQ Is in RevitaPlus NAD+?

Each RevitaPlus NAD+ daily pack includes a PQQ capsule containing:

• PQQ — 10 mg
• Ginseng Extract — 100 mg
• Lemon Balm Extract — 50 mg

The RevitaPlus NAD+ pack also contains a 600 mg NAD Natural Blend, a resveratrol formula, and a lycopene formula.

The 600 mg amount refers to the complete NAD Natural Blend containing nicotinamide adenine dinucleotide, nicotinamide, and green tea extract. It does not mean the product contains 600 mg of pure NAD+.

The directions recommend taking the contents of one pack daily, preferably with meals.

What Should You Look for When Reading PQQ Claims?

PQQ research is a useful example of why the wording of a health claim matters.

When reading an article or supplement page, ask:

• Was the research performed in cells, animals, or humans?
• What form of PQQ was studied?
• What dose was used?
• How long was the intervention?
• What outcome was actually measured?
• Was mitochondrial number directly measured, or were signaling markers studied?
• Was the finished supplement itself tested?

A study showing a change in PGC-1α expression in cultured cells is not the same as a clinical trial showing that a supplement improves fatigue.

A change in a metabolic marker is not automatically the same as a person feeling more energetic.

And an ingredient study does not automatically become a clinical study of every product containing that ingredient.

The Key Takeaway

PQQ is a redox-active compound with an established history as a cofactor in certain bacterial enzyme systems.

Its relationship with mitochondrial biology became particularly interesting after laboratory studies reported changes in signaling and markers associated with mitochondrial biogenesis.

That research is worth understanding.

But it should not be rewritten as “PQQ creates new mitochondria in humans” or “PQQ automatically restores youthful energy.”

The most widely cited mitochondrial biogenesis research includes mechanistic cell evidence, while human research on PQQ remains limited and specific to the doses, formulations, populations, and outcomes studied.

For supplement users, the practical lesson is simple: read the actual formula, separate cellular mechanisms from demonstrated human outcomes, and avoid assuming that every PQQ product has been clinically proven to produce the same effects.

This article is for general educational purposes and is not a substitute for medical advice, diagnosis, or treatment.