Where to buy SLU-PP-332 (ERR agonist, exercise mimetic) in the UK: the sellers with a verifiable COA
The newest verifiable SLU-PP-332 certificate on any UK seller's website is on Xlpeptides (xlpeptides.com), analysed 22 Aug 2025 (task #76137 on Janoshik's site); 1 verified seller holds one covering SLU-PP-332, listed newest first below.
A record of paperwork, not a recommendation: The Peptide Watch sells nothing, takes no money from sellers and links to none of them.
Who has the newest report · Why the date matters · What purity means · What SLU-PP-332 is · Regulators · Every report
Who holds the newest SLU-PP-332 report (1 verified UK sellers)
Newest report first. Every report was opened on Janoshik's own website and names the seller as the client. The date is the analysis date printed on the report. The verify link opens the laboratory, never the shop. Audit findings, not recommendations.
| Seller | Newest SLU-PP-332 report | Age of that report | Purity on it | |
|---|---|---|---|---|
| Xlpeptides | 22 Aug 2025 | 13 months, 21 days | amount only | verify |
Every SLU-PP-332 purity report we have read (1), one row per report
The one verifiable SLU-PP-332 certificate we have read
Each row was opened on Janoshik's own site by a real page load and transcribed. The client column is the name the laboratory printed; a certificate counts as a seller's own only when that name is the seller. The report date is the analysis date printed on the report where we have read it, otherwise the date the laboratory received the sample. The verify link opens the laboratory, never the shop. Audit findings, not recommendations.
| Seller | Task | Client on the report | Report date | Result | Batch | |
|---|---|---|---|---|---|---|
| Xlpeptides | #76137 | XL Peptides | 22 Aug 2025 | SLU-PP-332 · 172.83 mcg; 194.35 mcg | Unknown | verify |
Why the date on a certificate matters
What a purity figure means
The purity on a Janoshik report is the share of the main peak in an HPLC chromatogram. 99.5% means that 99.5% of what the detector saw was one substance and 0.5% was something else. It is not the amount in the vial: that is the separate quantity line, in milligrams. It does not by itself prove which substance the peak is: that is identity, confirmed by mass spectrometry. And it says nothing about sterility, endotoxins or heavy metals, which are separate tests.
A purity figure printed on a shop page with no report behind it is a claim, not a measurement. Between two reports, the difference that matters is rarely 99.2% against 99.8%; it is whether the report exists at all, names the seller as the client, covers this compound on its own, and is recent.
What SLU-PP-332 is, and what it is sold as
SLU-PP-332 is a small molecule, not a peptide, made at Saint Louis University in 2023 as a pan-agonist of the estrogen-related receptors and described as an exercise mimetic in mice. It has ten papers, no human study and no registered trial.
| Development status | Preclinical. Preclinical: mouse studies only, no trial registered. |
|---|---|
| Originator | Thomas Burris and colleagues, Saint Louis University, 2023. Rights: Saint Louis University patents; no licensee announced. |
| Registered clinical trials | 0 on ClinicalTrials.gov |
Ten papers, all since 2023, none in people. SLU-PP-332 is a small molecule, not a peptide, made in Thomas Burris's laboratory at Saint Louis University as a pan-agonist of the three estrogen-related receptors, the name being the university's initials. The first paper, in ACS Chemical Biology in 2023, reported that it triggered an exercise-like response in mouse muscle and raised treadmill endurance; later mouse studies covered obesity, heart failure and kidney ageing. PubMed indexes 10 papers; there is no human study and ClinicalTrials.gov lists none.
Where development stands. The patents belong to Saint Louis University. Burris has disclosed a stake in Pelagos Pharmaceuticals, which works on this receptor class, and his group has since published an orally active successor, SLU-PP-915, describing the original as lacking oral bioavailability. That is a sign that whatever reaches a trial will not be the compound sold online. Anti-doping laboratories published detection methods for it in 2026; it is not named on the 2026 WADA list.
What a certificate can tell you. One report, from XL Peptides in August 2025, measured 172.83 and 194.35 micrograms in two vials against a 200 microgram label, with no purity figure.
The published record in numbers, and the sources
| Papers on PubMed | 10 |
|---|---|
| Indexed as rat or mouse studies | 5 |
| Indexed as clinical trials | 0 |
| Published since 2020 | 10 |
Counts are from PubMed on 15 September 2026 using the queries recorded in our evidence file. A description of the published record, not medical advice and not an argument for or against use.
- Synthetic ERRα/β/γ Agonist Induces an ERRα-Dependent Acute Aerobic Exercise Response and Enhances Exercise Capacity. (ACS Chem Biol, 2023, PMID 36988910)
- Estrogen-Related Receptor Agonism Reverses Mitochondrial Dysfunction and Inflammation in the Aging Kidney. (Am J Pathol, 2023, PMID 37717940)
- Novel Pan-ERR Agonists Ameliorate Heart Failure Through Enhancing Cardiac Fatty Acid Metabolism and Mitochondrial Function. (Circulation, 2024, PMID 37961903)
- An orally active estrogen receptor-related receptor agonist, SLU-PP-915, enhances aerobic exercise capacity. (J Pharmacol Exp Ther, 2026, PMID 41421047)
- Chemical optimization of the exercise mimetic SLU-PP-332 enables insight into estrogen-related receptor signaling. (Int J Biol Macromol, 2026, PMID 41850449)
- Analysis and Identification of In Vitro Metabolites of Exercise Mimetic SLU-PP-332 ERRα/β/γ Agonist for Doping-Control Purposes. (Drug Test Anal, 2026, PMID 41688415)
- Burris laboratory, 2026, orally active ERR agonist SLU-PP-915 (PubMed)
What regulators say about SLU-PP-332
In the UK. Not a medicine anywhere. Sold as a research chemical.
We hold no statement from the FDA, MHRA or EMA specifically about SLU-PP-332 on file. Its development and licence sources are listed under the record above.
What the one SLU-PP-332 certificate shows
We have read one Janoshik report covering SLU-PP-332, published by one UK seller. It was opened on Janoshik's own website and names the seller itself as the client. It is dated 22 Aug 2025.
A certificate is a batch document. The lines that matter are the compound (it must say SLU-PP-332, not only a batch code), the client (the shop, not its supplier) and the analysis date. A new batch is untested until a new report appears.
SLU-PP-332 in the UK at a glance
| Active UK sellers listing SLU-PP-332 | 6 |
|---|---|
| Of which publish a verifiable own-name certificate | 1 |
| Of which name no laboratory at all | 2 |
Counted from the vendor ledger at build time. The A-Z directory lists every seller and what each publishes instead.
Questions people ask
Which UK sellers publish a verifiable Janoshik certificate naming SLU-PP-332?
As of 13 October 2026, one: Xlpeptides. It has a report on Janoshik's own website that names the seller as the client and lists SLU-PP-332. That is a statement about paperwork, not a recommendation; The Peptide Watch does not recommend anywhere to buy SLU-PP-332.
How recent is the newest SLU-PP-332 certificate from a UK seller?
The newest we have read is Janoshik task #76137, sample received 22 Aug 2025. It is published by Xlpeptides and names it as the client. A certificate covers one batch, so an old one says little about stock on sale today.
How do I check that a certificate for SLU-PP-332 is genuine?
Four things: an independent laboratory is named; the client field names the seller you are buying from, not a supplier; the compound line says SLU-PP-332; and the report's task number and key open the same report on the laboratory's own website (verify.janoshik.com). A branded PDF with no laboratory name and no verification code fails on the first check, however professional it looks. The free COA Checker on this site runs the checks for you.
Is SLU-PP-332 a licensed medicine in the UK?
Not a medicine anywhere. Sold as a research chemical. Preclinical: mouse studies only, no trial registered. The Peptide Watch does not give legal or medical advice.
Why does The Peptide Watch not say where to buy SLU-PP-332?
Because the site records paperwork, not recommendations. A verifiable certificate proves that a sample of one batch was tested. It does not prove the vial you receive matches it, and it says nothing about whether anyone should use SLU-PP-332. Listing which sellers publish a certificate you can check, and which publish nothing, is as far as the evidence goes.
The Peptide Watch's position on SLU-PP-332
Not a medicine anywhere. Sold as a research chemical. The Peptide Watch reads the certificates UK sellers publish and does not recommend anywhere to buy SLU-PP-332. Sellers on this page are listed by the date of their newest SLU-PP-332 certificate and by nothing else. If you can verify a seller's testing, you can at least judge its evidence; if you cannot, you are taking the seller's word for what is in the vial. See how UK testing compares across every seller in the market statistics.
An honest note: a verifiable certificate proves a sample of a batch was tested, not that the specific vial you receive matches it, see what this can and can't tell you. The Peptide Watch sells no SLU-PP-332 and links to no shop; this is research-use-only information, not medical or dosing advice.
All peptides · Other compounds: BPC-157 · TB-500 · GHK-Cu · Ipamorelin · CJC-1295 · MOTS-c · Epithalon · Selank · Semax · Tesamorelin · Melanotan 2 · KPV · PT-141 · SS-31 · DSIP · NAD+ · Melanotan 1 · AOD-9604 · 5-Amino-1MQ · Glutathione · Kisspeptin · Thymosin Alpha-1 · GHRP-6 · HGH Fragment 176-191 · IGF-1 LR3 · FOXO4-DRI · Oxytocin · MK-677 · GLOW and KLOW blends · Sermorelin · GHRP-2 · Hexarelin · ARA-290 · AHK-Cu