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). Neither product has a current in-stock price right now. 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 | 25mg×60 |
| Lowest current price | No current in-stock price | No current in-stock price |
| Price per labelled mg | — | — |
| Package sizes | 2mg, 5mg, 10mg | 25mg-per-mL-30mL, 10mg×60, 12.5mg×60, 15mg×60, 25mg×60, 2000mg |
| Vendors with current prices | 0 | 0 |
| Form at this package | No listing | No listing |
| Stock | Out of stock | Out of 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.
No vendor has a current in-stock price for this package.
Ipamorelin prices →Price history →MK-677
MK-677 is a catalogue entry whose compound-specific reference review has not yet been completed.
No vendor has a current in-stock price for this package.
MK-677 prices →Price history →Related comparisons
Questions
Automated price sources are scheduled daily; other sources are checked manually. Check the offer's last successful source timestamp. A code is shown when it is attached to an offer or affiliate link. The displayed price includes a discount only when that code is cart-verified and the discounted price is explicitly recorded; otherwise it is the vendor's listed price. Prices exclude shipping. Stock status is captured at the same time. Rankings are by displayed price, except that the labelled featured partner, LA Peptides, is pinned first; “Cheapest” always marks the lowest price. PeptideTech earns a commission when you buy through a link.
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