WARNING: The FDA ran an investigation on weight-loss products sold on Amazon and found that 100% were straight-up garbage and spiked with other substances. Read this article if you're serious about your health.Sedentary mice ran 70% longer without touching a treadmill. The same mice lost weight on a diet while eating the same amount of food.
The internet has called SLU-PP-332 the “exercise in a pill” ever since that study.
Powder is garbage, so don’t bother. You might as well use $200 as fuel to light a fire.
Where To Buy SLU PP 332
Here is what you must know before you buy slu pp 332 online.
It comes as:
- Powder (this is trash)
- Lyophilized vials (99% of vendors who sell this are scamming you)
- Capsules
Before you buy SLU-PP-332, ask for a batch-specific lab report with 98%+ HPLC purity and mass-spec identity.
The CAS number 303760-60-3 must match the label. One guy found a “SLU-PP-332” powder tested under 12% active. The rest is filler garbage. A price people have to pay when slacking.
Amazon? Never. Amazon doesn’t verify research-chemical purity. Listings are frequently pulled because it’s garbage and can even be harmful. You can’t trace the COA.
For research-grade compounds with real third-party reports, established vendors who test batches and publish the certificates. Vet the source the same way you would with a peptide vendor.
What Is SLU-PP-332?
A synthetic compound built at Saint Louis University; that’s where “SLU” comes from.
It switches on three receptors in your cells. ERRα, ERRβ, and ERRγ. They control your mitochondria, the engines that burn fuel.
So SLU-PP-332 is a metabolic switch, not a hormone and not a peptide. Calling it the “SLU-PP-332 peptide” is marketing since peptides are a huge trend now.
How SLU PP 332 Works

Exercise turns on a master switch in your muscles, PGC-1α. It instructs cells to build mitochondria and burn more fat. SLU-PP-332 turns on the switch without a workout.
More mitochondria. More fat oxidation. More slow-twitch endurance muscle fiber. The genetic signature of a hard cardio session, triggered by a molecule.
When scientists deleted the mice’s ERRα receptor, the endurance boost vanished. No receptor, no effect. That’s mechanism, not coincidence.
What The Mouse Studies Actually Showed
This is where the hype can be justified.
In the endurance study, sedentary mice given SLU-PP-332 ran about 70% longer and 45% farther than untreated mice. They never trained. The drug did the adaptation for them.
In the fat-loss study, obese mice lost roughly 12% of their body weight over 28 days and gained about ten times less fat than controls eating the same high-fat diet. Their food intake never dropped. The weight came off through burning, not through eating less.
A separate heart study found it improved pump function in failing mouse hearts. Cardioprotective, not cardiotoxic, at the doses tested.
The catch, said plainly: every result above is in mice. There is not one human trial. Not a single Phase 1. Anyone selling you “proven” benefits is lying about the word proven.
The Thing That Makes It Different From Ozempic
Most weight-loss compounds halt hunger. GLP-1 drugs like retatrutide and Tesofensine. SLU-PP-332 doesn’t.
It burns more fuel instead of eating less. In every mouse study, food intake stayed flat while fat still burned. A genuinely different mechanism. And it’s the most interesting thing about it. Also why people stack it with appetite drugs instead of replacing.
SLU PP 332 Dosage: How Much Per Day?
There’s no validated human dose because human studies don’t exist yet.
The mouse studies used 25 to 50 mg per kg, twice a day. Scaled to a human, that’s over 100 mg a day. Almost nobody takes that much because a vial wouldn’t last, and nobody knows the safety ceiling.
What researchers actually use is far lower:
- Microgram camp: 250 to 1,500 mcg a day, split into a morning and a pre-workout dose.
- Low-milligram camp: 1 to 5 mg a day, split across 2 to 3 doses.
- High-dose camp: the 50 to 100 mg oral capsules vendors push, scaled from the mouse math.
None of these is backed by human data. They’re reverse-engineered from vial sizes and animal studies.
How Often, And Why Twice A Day
SLU PP 332 clears fast. Its effect doesn’t linger around. A single daily dose leaves most of the day uncovered. That’s why researchers use it two or three times a day, with one dose 30 to 60 minutes before training.
How Long To Run It, And When It Kicks In
Mouse studies ran 28 days. Community cycles run 6 to 8 weeks on, at least 4 weeks off. Anecdotal users report an endurance or “running hot” feeling in 1 to 2 weeks and body changes by week 4 to 8. No human timeline is verified.
SLU PP 332 Stacks
All of these are biohacker theory. Zero human safety data for any combination. Layering unstudied compounds multiplies unknowns, so read this as what people do, not what you should do.
SLU PP 332 and retatrutide. The popular one. Retatrutide strips weight but drags energy and muscle down with it. People add SLU-PP-332 hoping its endurance and mitochondrial effects offset the crash. Plausible on paper, untested in humans.
SLU PP 332 and 5-amino-1MQ. Both touch fat metabolism from different angles, 5-amino-1MQ raises NAD+, SLU-PP-332 builds mitochondria. Marketed as a fat-loss blend. No clinical data.
SLU PP 332 and BAM15. BAM15 makes mitochondria burn fuel inefficiently. Stacked with SLU-PP-332’s “build more mitochondria” effect, the theory is more engines each running hotter. Rodent data on each alone, none on the pair.
SLU-PP-332 Side Effects
Mouse studies showed no obvious toxicity over 28 days. But “no toxicity in mice for a month” is not a human safety record.
Community reports, all anecdotal: more sweating, a warm or “metabolic” feeling early on, mild stomach upset with oral use, sleep shifts, and an occasional bump in resting heart rate. The cardiomyopathy rumor on podcasts isn’t supported by the data, the heart study showed function improving, not failing.
Appetite: no, it doesn’t suppress hunger. That’s the whole point of the mechanism.
Anxiety: no published evidence either way. It barely crosses into the brain in animals. Anyone stating a firm answer is guessing.
Cancer: here’s the honest version. The ERRα receptor SLU-PP-332 switches on is also overactive in some aggressive breast cancers, and drug companies are building ERRα blockers to fight them. A compound that does the opposite, switching the receptor on, is a theoretical concern, not a proven human risk. No tumors appeared in the mouse studies. But nobody has run a long-term cancer safety study, and anyone with active or recent cancer should stay away.
Is SLU-PP-332 Legal?
Not FDA-approved. Not a controlled substance. It sells as a research chemical with a “not for human consumption” label, the same grey zone as most research compounds.
Athletes, read this. SLU-PP-332 is not listed by name on the WADA banned list, but it falls under the metabolic modulator category, and labs are already building tests to catch it. If you’re drug-tested, treat it as banned.
Australia: sold by research-chem vendors as a non-therapeutic good. The TGA hasn’t evaluated it. Demand exists, supply exists, the legal status is the same grey zone.
SLU-PP-332 FAQ
Is SLU-PP-332 a peptide?
No. It’s a synthetic small molecule (C18H14N2O2, CAS 303760-60-3) that activates the ERR receptors. It contains no peptide bond. Vendors mislabel it as a peptide.
What does SLU-PP-332 do?
In mice it raised endurance about 70%, caused roughly 12% weight loss, and increased fat burning and mitochondrial growth, without reducing food intake. No human data exists.
How much SLU-PP-332 per day?
No validated human dose. Mouse studies used 25 to 50 mg/kg twice daily. Community protocols run far lower, 250 mcg to 5 mg a day, split into 2 to 3 doses.
How long does SLU-PP-332 take to work?
In mice, days for gene changes and 1 to 2 weeks for endurance. Anecdotal human reports describe an endurance feel in 1 to 2 weeks and body changes by 4 to 8 weeks.
Does SLU-PP-332 suppress appetite?
No. It causes fat loss by burning more fuel, not by reducing hunger. That’s the opposite of GLP-1 drugs and tesofensine.
Does SLU-PP-332 cause cancer?
No proven human risk and no tumors in mouse studies. But the ERRα receptor it activates is linked to aggressive breast cancer, so it’s a theoretical concern. Avoid with any cancer history.
Is SLU-PP-332 banned by WADA?
Not by name, but it falls under metabolic modulators and detection tests are being built. Any drug-tested athlete should treat it as prohibited.
Can you stack SLU-PP-332 with retatrutide?
Biohackers do, hoping it offsets retatrutide’s energy and muscle loss. The logic is sound but there’s zero human safety data for the combination.
Is SLU-PP-332 oral or injectable?
Studies injected it, and its oral absorption is doubtful; the same lab built a successor specifically for better oral use. Capsule users often report weaker effects than injectors.
Conclusion
Many online sellers claim to sell vialed slu pp 332 but on closer inspection, they don’t have credit card processor. Wire or other offshore payment options are the only way here.
This is a huge red flag because if you buy, you will probably get something else that can even be harmful to inject.
SLU-PP-332 flips the same genetic switch as exercise. It delivered real endurance and real fat loss without cutting a single calorie for mice.
It’s also entirely unproven in humans, possibly useless as an oral capsule, theoretically risky if you’ve had cancer, and sold in a market full of underdosed powder.
Hold the excitement and the caution at once, and you’re thinking clearly. The mice ran longer. You are not a mouse yet.
Chase the proof. Never the promise.