MK-677.
- Free next-day UK deliveryOrder before 2pm, take it tomorrow.
- Made in certified UK facilitiesManufactured to GMP standards.
- Sold for research purposes onlyNot for human consumption. Third-party tested.
MK-677
Ibutamoren • Growth Hormone Secretagogue
For Research Purposes Only • Not for human consumption • Laboratory research use only
MK-677, also known as Ibutamoren, is a growth hormone secretagogue (GHS). It is a non-peptide compound that mimics the action of ghrelin, the hunger hormone, binding to ghrelin receptors in the brain. It has been the subject of extensive scientific research for its effects on growth hormone and IGF-1 levels.
MK-677 is classified as a growth hormone secretagogue (GHS). Unlike synthetic growth hormone or peptides, it is orally active and stimulates the body's own production pathways. It is not a SARM (Selective Androgen Receptor Modulator).
Molecular Formula: C27H36N4O5S • Molecular Weight: 528.662 g/mol • CAS Number: 159752-10-0
Research has examined MK-677's effects on growth hormone secretion. Studies indicate it stimulates GH release through ghrelin receptor activation, with observed increases in serum GH and IGF-1 levels in experimental models.
Multiple clinical studies published in peer-reviewed journals
Scientific literature includes research on MK-677 and bone metabolism markers. Studies have explored its relationship to bone mineral density in various research populations.
Bone metabolism pathway research documented
Research has investigated MK-677 in relation to lean body mass and body composition changes. Studies document observations on nitrogen balance and metabolic parameters.
Body composition research available on PubMed
Studies have examined MK-677's effects on sleep patterns. Research indicates observed changes in REM sleep duration and overall sleep quality in experimental settings.
Sleep study data published
Unlike injectable GH, MK-677 has been studied in longer-term protocols. Research includes studies examining sustained administration periods and observed effects over time.
Extended duration studies available
Manufactured in the United Kingdom under strict quality control standards.
Every batch tested via High-Performance Liquid Chromatography to verify ≥99% purity.
Independent laboratory analysis confirms identity, purity, and absence of contaminants.
Full COA available showing mass spectrometry confirmation and purity analysis.
Packaged to maintain stability. Store in cool, dry conditions away from light and moisture.
This product is sold strictly for in vitro laboratory research under controlled conditions by qualified research personnel only. Not intended for human or animal consumption. Not a drug, food, or cosmetic. Not evaluated by the FDA or MHRA. Buyer assumes all responsibility for proper use and compliance with applicable laws. Requires appropriate personal protective equipment.
High-purity compound for scientific research applications.
Questions, answered.
What does research use only mean?
These compounds are sold for laboratory and research purposes only. They are not approved for human consumption in the UK, are not supplements, and by ordering you confirm they will be used for research.
Is it tested?
Every batch is independently third-party tested for purity before it ships.
How is it shipped?
Plain, tracked packaging with free next-day UK delivery. Orders placed before 2pm on a weekday are dispatched the same day.
What is your returns policy?
You have 14 days from delivery to return unopened, sealed items for a refund. Opened products can't be returned for hygiene reasons. Send us your order number through the contact form and we will sort it.