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MK-677

Also known as: Ibutamoren, MK677, Ibutamoren Mesylate, L-163191, Nutrobal

Growth Hormone & IGF →

MK-677 (ibutamoren) is a non-peptide, orally active agonist of the ghrelin receptor and a growth-hormone secretagogue.

Pep-Index tracks MK-677 across 4 research-peptide vendors, with the lowest listed price at $0.12/mg (60 × 10mg) at SwissChems as of 2026-06-06. Prices below are normalized to dollars per milligram so different vial sizes can be compared on an equal basis. MK-677 is sold by third-party vendors for research use only.

Research Applications

Studied in research on ghrelin-receptor signaling and growth-hormone/IGF-1 regulation.

Safety Considerations

Not an approved human therapeutic. Sold as a research chemical for laboratory use only — not for human consumption.

Sources

  1. Reference (Wikipedia)
For research use only. Information on this page summarizes publicly available research literature. It is not medical advice, not a substitute for consultation with a qualified clinician, and not a recommendation for human consumption. Products listed below are sold by third-party vendors for research purposes.

Available From 4 Vendors — Sorted by $/mg

Prices refreshed 2026-06-06
Vendor
$/mg
Buy
🇺🇸SwissChems
$0.12/mg
Buy $69.95
60 × 10mg
Modern Aminos
$2.27/mg
Buy $68
30mg
Modern Aminos
$3.36/mg
Buy $84
25mg
🇺🇸Peptide Hackers
$9.90/mg
Buy $99
10mg
🇺🇸Simple Peptide
$19.9/mg
Buy $199
10mg
🇺🇸Simple Peptide
$19.9/mg
Buy $249
12.5mg

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Frequently asked

How many vendors sell MK-677?
Pep-Index currently tracks 4 research peptide vendors listing MK-677.
What is the lowest tracked price for MK-677?
The lowest tracked price for MK-677 is $0.12/mg (60 × 10mg) at SwissChems. Prices are sorted by dollars per milligram so different vial sizes can be compared on an equal basis.
How often are MK-677 prices updated?
Vendor prices are refreshed by our automated scraper (most recent update: 2026-06-06). Always confirm the current price on the vendor's site before purchase.
Disclosure

Pep-Index is a directory. We do not test, score, or endorse any vendor. Prices listed are what each vendor publishes; verify on the vendor's site before purchase.

Products listed for research purposes only — not for human consumption. Wiki content is summarized from publicly available research literature and is not medical advice.