SLU-PP-332: What It Is and What It’s Known For
SLU-PP-332 is among the most novel compounds in current metabolic and exercise-biology research — and one of the least written-about. Here is what it is, what it is known for, and what to look for when sourcing it.
What is SLU-PP-332?
SLU-PP-332 is a small-molecule agonist of the oestrogen-related receptor alpha and gamma (ERRα and ERRγ) — two members of the nuclear receptor superfamily. It was developed at Washington University in St. Louis (hence the SLU prefix), where it was characterised in 2023 as a potent ERRα/γ pan-agonist. It is not a peptide in the classical sense — it is a synthetic small molecule — but it is studied in the same exercise mimetic and metabolic biology research space as peptides like MOTS-C. It is supplied as a lyophilised powder for research reconstitution.
What is it known for?
SLU-PP-332 is primarily known as an exercise mimetic — a compound that activates cellular pathways associated with aerobic exercise adaptation in the absence of physical activity.
ERR Receptor Activity
ERRα and ERRγ are nuclear receptors that regulate the expression of genes involved in oxidative metabolism, fatty acid oxidation, and mitochondrial biogenesis. They are considered downstream regulators of PGC-1α, the master regulator of mitochondrial biogenesis. Endurance exercise upregulates PGC-1α → ERR signalling; SLU-PP-332 activates this pathway directly at the ERR receptor level.
Mitochondrial Biogenesis
In preclinical murine studies, SLU-PP-332 administration increased mitochondrial density in skeletal muscle and improved aerobic capacity as measured by VO₂max proxies. Treated mice showed improved endurance performance without additional training — the defining characteristic of exercise mimetic research.
Metabolic Effects
Alongside mitochondrial effects, SLU-PP-332 showed improvements in insulin sensitivity and lipid oxidation profiles in obesity models, positioning it in a research space adjacent to both exercise biology and metabolic disease research.
Cardiac Muscle Research
ERRα and ERRγ are highly expressed in cardiac tissue, and the original SLU-PP-332 publication characterised effects in cardiac muscle models. Heart failure biology, where mitochondrial energy production is often impaired, is an emerging application area for ERR agonist research.
Where SLU-PP-332 Sits in the Research Landscape
SLU-PP-332 occupies a genuinely novel position. Its ERR agonism mechanism is distinct from AMPK activators (like MOTS-C), NAD+-mediated sirtuin pathways, and GH-axis peptides — though all operate broadly in the metabolic and mitochondrial space. For researchers studying exercise biology, mitochondrial biogenesis, or metabolic disease models, it represents an underexplored mechanistic tool.
A Note on Research Stage
SLU-PP-332 is strictly preclinical. Published research is limited to cell culture and murine models. There is no validated human dosing data, and the compound’s behaviour in human physiology is not established. This makes it appropriate only for in vitro and controlled preclinical research contexts. Researchers should design protocols that reflect this early-stage status.
Properties Researchers Value
- ERRα/γ dual agonism — direct activation of a nuclear receptor family with broad metabolic and mitochondrial relevance.
- Exercise mimetic mechanism — distinct from all other compound classes in the metabolic research space.
- Novel — limited published research means significant mechanistic ground remains unexplored.
- Defined structure — small molecule, confirmed by mass spectrometry.
What to Look for When Sourcing
As a relatively new compound, SLU-PP-332 sourcing requires particular attention to identity verification. Look for an independent COA with HPLC purity and mass spectrometry identity against the known molecular weight. See our guide on why COA testing matters.
Reconstitution
SLU-PP-332 is supplied lyophilised. Solubility characteristics should be verified at the concentration required for your specific research protocol. Our reconstitution guide covers general technique; for this compound, solubility in DMSO or ethanol may be relevant depending on application. Use the Peptide Calculator for volume guidance.
Our Approach
At Revial Labs, our SLU-PP-332 is independently COA tested so researchers can verify identity and purity before use. Every compound we supply is intended strictly for laboratory research.
Compounds Referenced in This Article
This article is provided for educational purposes for laboratory research professionals. All Revial Labs compounds are supplied strictly for laboratory research use only and are not for human or veterinary use.
