MK-677
$99.99
MK-677 is a non-peptide ghrelin receptor agonist that stimulates growth hormone secretion via the GHSR-1a pathway. It is studied in models focused on GH/IGF-1 axis regulation, sleep cycles, and metabolic adaptation. MK-677 is often used in endocrine and neuroendocrine research environments.
For laboratory research use only. Not for human or veterinary use.
Certificate of Analysis
Batch documentation is available for every compound so you can verify identity and purity.
≥99% Purity Standard
Every compound is held to a ≥99% purity standard before it reaches the catalog.
Shipping & Handling
Orders are processed within 1–2 business days and shipped via USPS Priority Mail.
Research Use Only
Strictly for in vitro research and laboratory use. Not for human or veterinary consumption.
Description
MK-677, also commonly referenced as Ibutamoren in research literature, is a non-peptide ghrelin receptor agonist studied for its interaction with the growth hormone secretagogue receptor 1a, commonly known as GHSR-1a. Unlike peptide-based growth hormone secretagogues, MK-677 is a small-molecule compound, which makes it especially useful in controlled research settings where receptor activity, stability, and endocrine signaling pathways are being evaluated. Its interaction with the GHSR-1a pathway has made it a widely studied reference compound in research involving growth hormone release, neuroendocrine regulation, and metabolic signaling.
In laboratory environments, MK-677 is frequently studied for its role in the growth hormone and insulin-like growth factor 1 axis, also known as the GH/IGF-1 axis. This axis is involved in a range of biological processes, including growth-related signaling, cellular repair pathways, tissue regulation, and metabolic adaptation. Researchers often examine MK-677 to better understand how ghrelin receptor activation may influence growth hormone secretion patterns, downstream IGF-1 activity, and endocrine feedback mechanisms under controlled experimental conditions.
MK-677 is also commonly referenced in studies involving sleep cycles and neuroendocrine function. Growth hormone release is closely connected to sleep architecture, circadian rhythm patterns, and nighttime endocrine activity. Because of this, MK-677 is often evaluated in research models focused on the relationship between ghrelin receptor signaling, sleep-associated hormone release, and central nervous system regulation. These investigations help researchers explore how endocrine pathways may interact with rest, recovery-related signaling, and biological rhythm regulation.
Another important area of MK-677 research involves metabolic adaptation and energy balance. Ghrelin receptor pathways are associated with appetite signaling, nutrient sensing, glucose metabolism, and broader metabolic control. In experimental models, MK-677 may be studied for its influence on metabolic markers, cellular energy regulation, and hormonal responses to changes in nutrient availability or physiological stress. This makes it a useful compound in research involving endocrine-metabolic communication and adaptive biological responses.
Due to its non-peptide structure, defined receptor activity, and relevance to hormonal signaling, MK-677 remains an important compound in endocrine and neuroendocrine research. Its use in controlled laboratory settings supports investigations into GHSR-1a activation, GH/IGF-1 axis regulation, sleep-related hormone patterns, metabolic response mechanisms, and the broader relationship between ghrelin signaling and endocrine system function.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Not for human consumption.
MK-677 is supplied by SHDW Research (also known as Shadow Research) as a research-use-only laboratory compound intended strictly for in vitro scientific study.

About MK-677 Research Compound
Laboratory buyers choose this material when they need clear research-use boundaries, consistent handling guidance, and a U.S.-based supplier workflow.
This listing is positioned for controlled laboratory purchasing — not consumer supplementation or human use.
MK-677 Quality Standards
SHDW Research targets a ≥99% purity standard with third-party testing support. Certificates of Analysis (COAs) may be available upon request — see our COA & testing standards page.
How to Order This Compound
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For independent compound reference data, see the PubChem compound database.
MK-677 is for research use only. Not for human or veterinary consumption.




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