Single peptide
Ipamorelin
2 mg · 5 mg · 10 mg
from$32
Single peptideGH secretagogues & GHRH analogsPre-order
MK-677 (Ibutamoren)
$29$5.80/mg
- Form: lyophilized (freeze-dried) powder, sealed vial
- Certificate of analysis: batch 026-M77-TSX, HPLC purity 99.3% — view PDF
- Shipping: pre-orders ship after the batch certificate of analysis is posted from the USA · free over $150
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For laboratory research use only. Not for human or veterinary use.
Compound identity
| Compound | Formula | Mol. weight | CAS | PubChem |
|---|---|---|---|---|
| MK-677 (Ibutamoren) | C27H36N4O5S | 528.7 g/mol | 159634-47-6 | CID 178024 |
Reference identity data from PubChem where listed. Each batch's purity data is on its certificate of analysis on the lab results page.
Selected published research
Peer-reviewed papers indexed in PubMed on MK-677 (Ibutamoren):
Where this research was done: 
United States (2), 
South Korea (1)
- Hepatotoxicity induced by MK-677. BMJ Case Rep, 2025. PubMed 40675653
- LGD-4033 and MK-677 use impacts body composition, circulating biomarkers, and skeletal muscle androgenic hormone and receptor content: A case report. Exp Physiol, 2022. PubMed 36303408
- Effect of the Orally Active Growth Hormone Secretagogue MK-677 on Somatic Growth in Rats. Yonsei Med J, 2018. PubMed 30450851
Also searched as: Ibutamoren.
Storage
Store sealed vials cold, dry and away from light. Lyophilized peptides are typically kept at −20 °C for long-term storage.
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