Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
Head-to-head comparison of MOTS-c and SR-9011 — mechanism, dosing, side effects, legal status, and pricing.
MOTS-c is a 16-amino-acid mitochondrial-derived peptide (MDP) encoded within the mitochondrial 12S rRNA, discovered by Lee and Cohen at USC in 2015 (sequence: MRWQEMGYIFYPRKLR). It is an investigational, research-only peptide studied as a metabolic regulator; it has not been approved by the FDA for any indication.
SR-9011 is a synthetic small-molecule REV-ERB (Rev-erbα/β) agonist — not a peptide — studied preclinically as a circadian/metabolic modulator. It has no human data of any kind, no regulatory approval, and is WADA-prohibited at all times. Note: it is frequently confused with "Stenabolic," which is properly its analog SR9009, not SR-9011.
MOTS-c
SR-9011
Category
Legal Status
Mechanism
Dose Range
Route
Frequency
COA-verified vendors · trust score ≥70 required · single-vial price — bulk/bundle deals may be lower
MOTS-c
SR-9011
COA corpus from Disclosed Labs — independently tested batches only.
MOTS-c
193
COAs
99.5%
Avg purity
16
Labs
SR-9011
1
COAs
96.8%
Avg purity
1
Labs
Lee et al. (Cell Metabolism, 2015; PMID 25738459) identified MOTS-c and showed that exogenous administration in mice prevented diet-induced obesity and insulin resistance via AMPK activation in skeletal muscle. Kim et al. (Cell Metabolism, 2018; PMID 29983246) demonstrated that MOTS-c translocates to the nucleus under metabolic stress and regulates antioxidant response element (ARE) genes. Reynolds et al. (Nature Communications, 2021; PMID 33473109) reported that exercise induces MOTS-c in human skeletal muscle and that MOTS-c treatment improved physical capacity in young, middle-aged, and aged mice. Human clinical data are limited to CohBar's Phase 1a/1b study of the analog CB4211 in healthy volunteers and obese NAFLD subjects, which reported acceptable tolerability and exploratory signals on ALT/AST and glucose; CohBar wound down the program in 2023. No completed Phase 2 or Phase 3 trials exist for MOTS-c or its analogs, and grey-market dosing (typically ~10 mg SubQ 2-3x/week) is not clinically validated.
Key references
In diet-induced obese mice (intraperitoneal dosing), SR-9011/SR9009 increased energy expenditure, reduced fat mass, and improved dyslipidemia and hyperglycemia (Solt et al., Nature 2012). Human liver microsome work identified 14 metabolites but no half-life, and the authors caution against human extrapolation. There are no registered human trials of SR-9011; no human safety, dose, or pharmacokinetic data exist.
MOTS-c and SR-9011 are both in the Metabolic category and may have overlapping mechanisms. Researchers should review both profiles carefully, understand the mechanisms of action, and monitor the relevant biomarkers when combining compounds in the same class. As always, consult a licensed healthcare provider before making any decisions about combining research compounds.
This platform provides informational tools only, not medical advice. This comparison is for educational purposes only. Consult a licensed provider.
Dosing Notes
Half-life
Side Effects
Contraindications
Lab Testing
Disclosed Labs