Home / Weight & metabolism / SLU-PP-332
SlAnimal studies only

SLU-PP-332

SLU-PP-332 is a lab compound that switches on ERR receptors, which are linked to the body's response to exercise. It has only been tested in cells and mice.

Not approved. No human trials foundOnly studied in cells and mice
OverviewDosingMixingResearchCommunitySafetyFAQSources

SLU-PP-332 quick reference

TypePan-ERR agonist (small molecule)
Studied forEndurance, fat loss, heart, kidney
EvidenceMice and cells only
RouteMouse injections; capsules by community
Half-lifeNot established

What is SLU-PP-332?

Lab compound that switches on ERR receptors.

Sold as an exercise mimic.

Mice and cells only. No human trials.

How SLU-PP-332 works

ERR receptors

Activates ERR alpha, beta and gamma; strongest on alpha.

Exercise genes

Turns on an exercise-like gene program in muscle.

Fuel use

Raised fat burning and mitochondrial activity in mice.

Limited mimic

One pathway cannot replace training.

What SLU-PP-332 is studied for

AnimalsEndurance

Treated mice ran with better endurance.

AnimalsObesity

Obese mice weighed about 12% less after 28 days.

AnimalsMetabolic syndrome

Better insulin sensitivity and less fat gain in mice.

AnimalsAging kidney

Old mice had less albumin in urine after 8 weeks.

AnimalsHeart failure

Heart-failure mice improved heart function.

Lab / cellsHuman muscle cells

Cells from inactive women showed less oxidative stress.

SLU-PP-332 dosing protocol

ItemWhat is known
Human doseNot established
Studied inMice (injection into the belly cavity, IP)
Mouse dose25 to 50 mg/kg, twice a day, for 10 days to 6 weeks
Oral useReported as lacking oral bioavailability in mice (JPET 2026)

From the Circulation 2024 paper (25 mg/kg twice daily, IP) and the JPET 2024 paper (50 mg/kg twice daily, IP, 28 days). Do not convert mouse doses into human doses.

HUMAN DOSENone establishedTrial
MOUSE STUDY25-50 mg/kg injected, twice dailyTrial
MOUSE LENGTH10 days to 6 weeksTrial
COMMUNITY RANGE20-100 mg daily by mouthCommunity
COMMUNITY FORMCapsules or under the tongueCommunity

Label and trial amounts come from the sources below. Community amounts are what people report; they have not been tested.

Mixing

Capsule or under-the-tongue form. Mice got injections.

Open the peptide calculator

What the research found

No human results exist. In obese mice:

0human trials found
~12%lower body weight in obese mice after 28 days (50 mg/kg IP, twice daily)

A synthetic ERR agonist alleviates metabolic syndrome. JPET 2024 (PubMed 37739806). Treated mice gained under 0.5 g of fat versus about 5 g in controls.

SLU-PP-332 community experience

What users report. Not tested in trials.

Positive reports

  • Endurance Some feel better exercise tolerance or focus.
  • Body fat A minority see slow change over weeks.
  • Recovery Some report quicker bounce-back.

Negative & mixed

  • No effect Many report nothing noticeable.
  • Mixed forms Capsules and under-tongue products differ.
  • Side effects Fatigue, poor sleep, stomach upset, higher pulse.

SLU-PP-332 stacking

SLU-PP-332 + semaglutide

Different pathways. Not studied together.

SLU-PP-332 + MOTS-c

Both touch energy sensing. Not studied together.

SLU-PP-332 + SS-31

Different mitochondrial angles. Not studied together.

SLU-PP-332 side effects & safety

Common

  • No human safety data exists.
  • Fatigue (community).
  • Disturbed sleep (community).
  • Stomach discomfort (community).
  • Faster pulse during exercise (community).

Less common

  • Low blood sugar when fasting (community, unconfirmed).
  • Chronic and reproductive safety are unstudied.
  • Effects of long ERR activation are unknown.

Precautions

  • Pregnancy or breastfeeding: unknown.
  • Diabetes drugs: sugar could drop.
  • Heart, kidney or liver disease, or cancer history: ask a doctor.
  • Mouse results are not proof for people.

Our verdict on SLU-PP-332

Interesting mouse science. Oral exposure is doubtful and no human data exists.

SLU-PP-332 FAQ

Is SLU-PP-332 a peptide?

No. It is a small molecule.

Does it work by mouth?

A 2026 paper says it lacks oral bioavailability in mice.

Is it an exercise replacement?

No. It copies part of the exercise gene response.

Any human trials?

None found.

Sources

  • A synthetic ERR agonist alleviates metabolic syndrome. J Pharmacol Exp Ther 2024 (PubMed 37739806)
  • Novel pan-ERR agonists ameliorate heart failure. Circulation 2024 (PubMed 37961903)
  • Review: Pharmacological activation of ERR as an exercise mimetic. Rev Med Chil 2026 (PubMed 42024694)
  • ClinicalTrials.gov search for SLU-PP-332, 5 Nov 2026: no registered studies
  • Billon C et al. Synthetic ERR alpha/beta/gamma agonist induces an acute aerobic exercise response. ACS Chem Biol 2023 (PubMed 36988910)
  • Estrogen-related receptor agonism reverses mitochondrial dysfunction and inflammation in the aging kidney. Am J Pathol 2023 (PubMed 37717940)
  • An orally active ERR agonist, SLU-PP-915, enhances aerobic exercise capacity. J Pharmacol Exp Ther 2026 (PubMed 41421047)
  • Targeting ERRs to counteract age-related muscle atrophy: a pilot study. Front Physiol 2025 (PubMed 40692696)