Ibutamoren (MK-677)
Oral ghrelin receptor agonist / growth hormone secretagogue — not a peptide.
Overview
Often grouped with peptide GH stacks in forums despite different chemistry.
What it is
Non-peptide spiropiperidine growth hormone secretagogue.
Mechanism (high level)
Ghrelin receptor agonism increases pulsatile GH and IGF-1 vs baseline in studies.
Quick facts
- Dosage
- Research doses discussed online — not guidance
- Route
- Oral
- Cycle
- Variable in trials
- Storage
- Room temperature unless label differs
Research indications
- GH axis pharmacology studies
Research protocols (education)
Education-first logging template
Use PepTok to track adherence and notes; any protocol must be directed by a qualified clinician.
Interactions
Often avoided with
- Insulin secretagogues without glucose monitoring
Often combined with
- Sleep regularity
Peptides discussed online are not substitutes for diagnosis or prescriptions.
Side effects & safety
- Increased appetite, edema, fasting glucose shifts — monitor with clinician.
Regulatory notes
- Not approved as a supplement in many regions; research chemical status varies.
FAQ
Is this a prescription?
PepTok does not provide prescriptions; it is for logging and education.
Related in catalog
Track in app
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PepTok gives you structure: stacks, reminders, notes, and progress snapshots in one place.
Educational content only. This material is not medical advice. Verify legality, sourcing, and dosing with a qualified professional.