Ipamorelin vs MK-677: prices, identity and regulatory status (2026)
Ipamorelin and MK-677 are different research compounds, not substitutes for each other: Ipamorelin is a 5-amino-acid peptide (C38H49N9O5); MK-677 is a single compound (C27H36N4O5S). Lowest current in-stock prices: Ipamorelin 10mg from $49.99 ($5.00/mg) at Amino Club; MK-677 15mg×60 from $129.99 at Cenexa Labs. Ipamorelin has no Drugs@FDA application; MK-677 has no Drugs@FDA application.
Ipamorelin vs MK-677: current prices and packages
| Compared property | Ipamorelin | MK-677 |
|---|---|---|
| Category | Growth hormone | SARMs |
| Compared package | 10mg · Vial | 15mg×60 · Capsules |
| Lowest current price | $49.99 at Amino Club, checked Oct 14, 2026 | $129.99 at Cenexa Labs, checked Oct 16, 2026 |
| Price per labelled mg | $5.00/mg | Exact package total only |
| Package sizes | 2mg, 5mg, 10mg | 25mg-per-mL-30mL, 10mg×60, 12.5mg×60, 15mg×60, 25mg×60, 2000mg |
| Vendors with current prices | 4 (5 tracked) | 1 |
| Form at this package | Vial | Capsules |
| Stock | In stock | In stock |
Prices exclude shipping. The price per labelled mg is always given per mg, so different package sizes compare directly; it is shown only for single-compound vials and powders with a labelled mass. Blends, capsules, liquids and IU-labelled packages are compared by package total.
Identity, regulatory status and registered research
| Compared property | Ipamorelin | MK-677 |
|---|---|---|
| Molecular formula | C38H49N9O5 | C27H36N4O5S |
| Molecular weight | 711.9 g/mol | 528.7 g/mol |
| Sequence | H-Aib-His-D-2Nal-D-Phe-Lys-NH2 (5 residues) | — |
| CAS Registry Number | 170851-70-4 | 159634-47-6 |
| Registered clinical trials | 2 · Phase 2: 2 | 4 · Phase 2: 3, Not applicable: 1 |
| Human intervention studies | 2 | 4 |
| US regulatory status | No Drugs@FDA application (checked October 7, 2026) · Drugs@FDA search | No Drugs@FDA application (checked October 7, 2026) · Drugs@FDA search |
Identity data: PubChem, FDA GSRS and EPA records; registry counts: ClinicalTrials.gov; status: Drugs@FDA. A matching name does not verify the contents of a supplier's lot.
Key human studies
Ipamorelin
- Prospective, randomized, controlled, proof-of-concept study of the Ghrelin mimetic ipamorelin for the management of postoperative ileus in bowel resection patients. International journal of colorectal disease, 2014
- Pharmacokinetic-pharmacodynamic modeling of ipamorelin, a growth hormone releasing peptide, in human volunteers. Pharmaceutical research, 1999
MK-677
- MK-0677 (ibutamoren mesylate) for the treatment of patients recovering from hip fracture: a multicenter, randomized, placebo-controlled phase IIb study. Archives of gerontology and geriatrics, 2011
- Effects of an oral ghrelin mimetic on body composition and clinical outcomes in healthy older adults: a randomized trial. Annals of internal medicine, 2008
- Growth hormone secretagogue MK-677: no clinical effect on AD progression in a randomized trial. Neurology, 2008
Studies are listed as records, newest first; they are not evidence that a research product is safe or effective.
Where to buy each compound
Ipamorelin
Ipamorelin is a five-amino-acid growth hormone secretagogue. Its original characterization used cell and animal experiments; a later human trial investigated a specific postoperative setting.
$49.99 · 10mg · $5.00/mg · Amino Club
View at Amino Club, Ipamorelin 10mg, opens in a new tabPeptideTech does not sell or fulfill products. Some outgoing links can earn a commission, which does not determine price order. How we rankIpamorelin prices →Price history →MK-677
MK-677 is a catalogue entry whose compound-specific reference review has not yet been completed.
$129.99 · 15mg×60 · Cenexa Labs
View at Cenexa Labs, MK-677 15mg×60, opens in a new tabPeptideTech does not sell or fulfill products. Some outgoing links can earn a commission, which does not determine price order. How we rankMK-677 prices →Price history →Related comparisons
Questions
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