NutriStack
PQQ and Vitamin B3, a synergy.
PQQ and vitamin B3 converge on NAD+ metabolism. This is an on-pathway analog of the better-known PQQ plus NMN/NR combination: PQQ promotes NAD+ generation and mitochondrial biogenesis through the SIRT1/PGC-1alpha pathway, while B3 furnishes an upstream precursor that the NAD+ salvage pathway requires. Combining them is mechanistically rational for supporting cellular energy and NAD+ status, with effects that appear complementary rather than competing.
One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
Same shape as the other 1,729 pairs in the public database.
From the interaction database
What the row says.
Every entry follows the same shape: what is happening, the mechanism, the recommendation, and the primary literature.
At a glance
- Substances
- PQQ and Vitamin B3
- Pair type
- Synergy
- Evidence (highest tier)
- Emerging
- Source citations
- 3 sources
- Stack Score effect
- +2 to your Stack Score (per scored synergy row).
- Scope
- Supplement × Supplement
- Last verified
- May 30, 2026
Synergy · Emerging evidence
Synergy
What is happening. PQQ and vitamin B3 converge on NAD+ metabolism. This is an on-pathway analog of the better-known PQQ plus NMN/NR combination: PQQ promotes NAD+ generation and mitochondrial biogenesis through the SIRT1/PGC-1alpha pathway, while B3 furnishes an upstream precursor that the NAD+ salvage pathway requires. Combining them is mechanistically rational for supporting cellular energy and NAD+ status, with effects that appear complementary rather than competing.
Mechanism. PQQ has been reported to raise cellular NAD+ levels and to feed the NAD+-dependent SIRT1/PGC-1alpha axis that drives mitochondrial biogenesis (proposed in part via AMPK and Nampt, though direct PQQ-Nampt data are limited). Vitamin B3 (niacin/nicotinamide) supplies the precursor substrate for the NAD+ salvage pathway. The two therefore act on complementary points of NAD+ biosynthesis and sirtuin signaling: B3 provides precursor for NAD+ synthesis while PQQ enhances the downstream mitochondrial response and NAD+-driven signaling.
Recommendation. These can be taken together without separation. Typical PQQ dosing is 10 to 20 mg per day; vitamin B3 dosing depends on the form (for example, nicotinamide around 50 to 500 mg per day, or smaller niacin doses to limit flushing). If using flush-form niacin, take with food and titrate to tolerance. No timing conflict applies.
Minimum separation. None; can be taken together
Sources (3)
- Hwang PS et al. Pyrroloquinoline Quinone, a Redox-Active o-Quinone, Stimulates Mitochondrial Biogenesis by Activating the SIRT1/PGC-1alpha Signaling Pathway via enhanced cellular NAD+ formation. Biochemistry, 2018.
- Reviews and commentary on PQQ-induced mitochondrial biogenesis noting NAD+ elevation and the SIRT1/PGC-1alpha pathway, with the caveat that direct PQQ-Nampt-sirtuin data remain limited.
- General NAD+ metabolism and niacin/nicotinamide biochemistry references describing vitamin B3 as a precursor substrate for NAD+ salvage.
Stack Score
How this pair moves the number.
Effect on the composite score
If both PQQ and Vitamin B3 are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).
The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.
Check your full routine
One pair was the worked example. NutriStack runs every pair in your stack at once.
Drop in your supplements and prescriptions and the public database surfaces every interaction, synergy, timing rule, and contraindication, every one linked to its primary source.