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Growth Hormone

MK-677 (Ibutamoren)

An orally active growth hormone secretagogue that mimics ghrelin, stimulating growth hormone and IGF-1 release without affecting cortisol. Popular for its convenience (oral dosing) and long-lasting GH elevation. Technically a non-peptide compound but commonly grouped with peptides.

Half-life: 24 hoursOnce dailyStandard · ≤10 mg/mL
Order: Coming soon

Overview

Clinical Benefits
  • Increases growth hormone and IGF-1
  • Improves sleep quality
  • Increases muscle mass
  • Supports bone density
  • Oral administration (no injections)
Administration

Oral — taken by mouth, preferably at bedtime on an empty stomach

Drug class: gh secretagogue

Clinical Dosing

Typical dosage
10-25mg daily
Starting dose
10mg
Cadence
Once daily
Full titration schedule
PhaseDose
Weeks 1-210mg once daily (evening/bedtime)
Weeks 3-415mg once daily
Weeks 5-820-25mg once daily (maintenance)
OngoingCycle 8-12 weeks on, 4 weeks off recommended

Safety Profile

Side effects
  • • Increased appetite (common)
  • • Water retention/bloating
  • • Mild lethargy initially
  • • Numbness/tingling in hands
  • • Elevated blood sugar
Contraindications
  • • Diabetes or insulin resistance (monitor glucose closely)
  • • Active cancer
  • • Pregnancy
  • • History of pituitary tumors

Cycling guidance

Off: 4 wks
Prevents IGF-1 desensitization and manages blood sugar impact

Frequently asked questions

MK-677 (Ibutamoren) is most commonly researched for: Increases growth hormone and IGF-1, Improves sleep quality, Increases muscle mass, Supports bone density.

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Information on this page is for educational purposes only and is not medical advice. Peptides should only be used under the supervision of a qualified healthcare provider.

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