Healing Category
MK-677
THE BUILDER
Ibutamoren; Oratrope
MK-677 is an orally active compound that mimics ghrelin and stimulates your body to produce more growth hormone and IGF-1. Unlike injecting synthetic HGH, this triggers your natural pulsatile GH release. Users report better sleep, faster recovery, increased muscle mass, and improved body composition. It's one of the most popular compounds for anti-aging and bodybuilding.
MK-677 Evidence Snapshot
How these guides are reviewed- Regulatory status
- Not FDA approved · research use only
- Dosing guidance
- Reviewed by our clinical team
- Linked evidence
- 3 research sources
- Content updated
- Sep 15, 2026
Dose and schedule recommendations shown below come from The Peptide App Clinical Team. Research links are provided so readers can inspect the supporting evidence directly. Review the sources.
Quick Answers About MK-677
Is MK-677 FDA approved?
No. This profile records MK-677 as not FDA approved and for research use only.
More context
Review the regulatory and source details on this page for the current context.
What dose does The Peptide App Clinical Team recommend for MK-677?
Dose: No established SubQ regimen..
More context
Cycle: No established SubQ dosing cycle.. This is clinical-team guidance for reference and does not replace individualized instructions from a licensed clinician.
What research supports this MK-677 guide?
This guide links to 3 curated or current research sources.
More context
Open the research section to inspect the source titles, publication details, study types, and available abstracts directly.
Review the MK-677 research sourcesStudied Effects & Mechanisms
GH Secretion
Activates ghrelin receptors to stimulate pulsatile growth hormone release
IGF-1 Elevation
Increases IGF-1 levels for muscle growth and recovery
Sleep Enhancement
Improves deep sleep quality when GH peaks
Bone Density
Supports increased bone mineral density over time
Non-peptide research origins
MK-677 is a synthetic non-peptide small molecule, despite often being grouped with peptide research compounds. Merck researchers reported its design in 1995 under the identifiers L-163,191 and MK-0677. That program compared a non-peptide chemical structure with the existing growth-hormone secretagogue research that included GHRP-6.
[Merck discovery paper, Patchett et al., 1995](https://pubmed.ncbi.nlm.nih.gov/7624358/)
Who is this for
Those wanting to increase natural growth hormone · Athletes and bodybuilders seeking muscle gains · People with poor sleep quality · Those over 30 experiencing age-related decline · Anyone wanting faster recovery from training
Further listening
1 recordingCommonly Stacked With
Research-Market Price Snapshot
A compact market signal for this profile. The dedicated pricing page owns vendor, vial-size, and price-per-mg comparisons.
Updated Oct 5, 2026
- Vendors
- 1
- Listings
- 1
- Observed range
- $55–$55
Market evidence
MK-677 product testing and COAs
Current certificates are on file for 4 of 15 vendors tracked in the MK-677 market. Research on this page describes the molecule. Vendor certificates concern particular market samples or batches; they do not change the research evidence or establish clinical safety, sterility, or suitability for use.
MK-677 Research
Live research temporarily unavailable
The live research feed did not return papers for this page. The curated references below remain available for crawlable source context.
The clinic network
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