Exercise mimetics & mitochondrial biogenesis
One of 4 mechanistic pathways to 🏃 Endurance & work capacity · 13 options
PGC-1α is the master regulator of mitochondrial biogenesis, and training is how you normally activate it. These compounds argue they can trigger the same transcriptional programme pharmacologically. It is the most exciting mechanism class in the Vault and the one furthest from a human trial.
Before reaching for an exercise mimetic, rule out the thing that actually limits most people: oxygen carrying capacity and the cofactors the electron transport chain runs on.
Complete Blood Count (CBC) with DifferentialFerritinCoenzyme Q10Carnitine, Total and FreeVitamin B1 (Thiamine)🏋️ Athletic Performance & Recovery covers these in one panel →
What engages this pathway
Ordered by how directly each one acts on the mechanism above — never by how much trial evidence exists. Each links to its full breakdown with dosing, half-life and vendor.
💉 SLU-PP-332
ERRα agonism activates the same gene programme endurance training does. Treated mice ran significantly further with no training. This is the compound Cam names when explaining why mechanism-first matters — the human trial does not exist and the argument is still excellent.
💉 SLU-PP-915
A more selective successor. Everything about it is inferred from its parent.
💉 AICAR
Direct AMPK activation — famously turned sedentary mice into endurance performers. The human problem is delivery: it needs gram-scale IV dosing to reach the concentrations that worked in rodents.
💉 ATX-304
Designed to solve exactly that bioavailability problem. Early human safety data exists; performance data does not.
💉 Cardarine (oral/inj) Gw-501516
PPARδ agonism shifts muscle toward oxidative fibre type and fat oxidation, sparing glycogen. The rodent endurance data is among the most dramatic ever published — and so is the high-dose carcinogenicity finding.
💉 SR-9009
REV-ERB agonism increases mitochondrial number and clears damaged ones. The oral bioavailability is essentially zero, so the injectable question is the only honest one.
💉 MOTS-c
Improves exercise capacity in aged mice via AMPK and metabolic flexibility. Human athletic data is anecdotal.
💉 ITPP
Increases the efficiency of oxygen release from haemoglobin at the tissue by shifting the dissociation curve — more delivered oxygen from the same haematocrit. Rodent data is strong; it is banned in horse racing for good reason and human safety is uncharacterised.
💉 Humanin
Mitochondrial-derived peptide with cytoprotective and metabolic effects in animals.
💉 SS-31
Restores cristae structure and improves ATP production efficiency. Human trials in mitochondrial myopathy show improved exercise capacity — which is the closest thing to a validated mitochondrial ergogenic here.
🧬 Urolithin A
Mitophagy induction improved muscle endurance in randomised human trials. Modest effect, real data, and the only entry in this pathway with both.
🧬 PQQ
PGC-1α-mediated mitochondrial biogenesis in cell and animal models. The human endurance trial is missing.
🧬 Cordyceps
Improves VO2max and time to exhaustion in several small human trials, plausibly via improved oxygen utilisation. Militaris is the studied species; sinensis products are frequently mislabelled.
The other 3 routes to endurance & work capacity
Pick the pathway that matches where you are actually stuck. An appetite drug does nothing for someone who already undereats.
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Frequently asked questions
PGC-1α is the master regulator of mitochondrial biogenesis, and training is how you normally activate it. These compounds argue they can trigger the same transcriptional programme pharmacologically. It is the most exciting mechanism class in the Vault and the one furthest from a human trial.
13 options are mapped to this pathway in the Vault, including SLU-PP-332, SLU-PP-915, AICAR, ATX-304. They are grouped by the mechanism they act through rather than ranked by how much trial evidence exists — 3 carry clinical validation and 10 are mechanistic predictions.
Before reaching for an exercise mimetic, rule out the thing that actually limits most people: oxygen carrying capacity and the cofactors the electron transport chain runs on. The markers worth checking are Complete Blood Count (CBC) with Differential, Ferritin, Coenzyme Q10, Carnitine, Total and Free.
Unproven is not the same as ineffective. Of the 13 options on this pathway, 3 have clinical validation and 10 are graded theoretical — meaning the mechanism is sound but the specific human trial has not been run, which is true of a great deal of what works in this space. Nothing on this page is ordered by evidence tier, because sorting by trial count would bury the compounds you came looking for.