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Cheapest · 50mg
$45.66
$0.91/mg at Valor Peptides
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MK-677

Ibutamoren / Oral GH Secretagogue

Oral ghrelin mimetic. Stimulates GH and IGF-1 release.

GH researchSleep researchAppetite studies

For research use only · Not for human consumption

/ compare by size

Every source for MK-677

Affiliate disclosure: purchases through links below may earn us a commission. Rankings are never sold — methodology · full disclosure

Size:
21 sources for 25mg·cheapest $67.03 at Purus Peptides·$2.68/mg
#1
Purus Peptides
4.7· price unverified
$67.03
$2.68/mg
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#2
One Day Compounds
4.6· price unverified
$69.73
$2.79/mg
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#3
Renova Peptides
4.6· price unverified
$73.36
$2.93/mg
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#4
Throne
4.7· price unverified
$75.89
$3.04/mg
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#5
Good Labs
4.7· price unverified
$81.82
$3.27/mg
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#6
Flawless Compounds
4.7· price unverified
$95.72
$3.83/mg
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#7
FITSKNS
4.6· price unverified
$99.37
$3.97/mg
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#8
Peptidology
4.8· price unverified
$134.96
$100.85
$4.03/mg
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#9
LA Peptides
4.6· price unverified
$102.87
$4.11/mg
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#10
Felix Chemical Supply
4.5· price unverified
$102.90
$4.12/mg
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#11
Nano Blue Labs
4.6· price unverified
$108.44
$4.34/mg
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#12
Valor Peptides
4.8· price unverified
$109.47
$4.38/mg
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#13
Omegamino
4.5· price unverified
$112.65
$4.51/mg
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#14
Molecular Solutions
4.7· price unverified
$115.35
$4.61/mg
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#15
Peptira
4.6· price unverified
$164.26
$121.97
$4.88/mg
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#16
Glow Aminos
4.5· price unverified
$122.84
$4.91/mg
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#17
Southern Aminos
4.6· price unverified
$122.94
$4.92/mg
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#18
Lab Sourced
4.7· price unverified
$125.95
$5.04/mg
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#19
EZ Peptides
4.7· price unverified
$133.28
$5.33/mg
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#20
Modern Research Peptides
4.8· price unverified
$137.53
$5.50/mg
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#21
RefillPen
4.5· price unverified
$149.72
$5.99/mg
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#22
Peppy
4.7· price unverified
$94.39
$3.78/mg
Out of stock
#23
Solyn Peptides
4.5· price unverified
$102.17
$4.09/mg
Out of stock
#24
Biocase Innovations
4.6· price unverified
$121.07
$4.84/mg
Out of stock
🏆Our pick for MK-677
Valor Peptides
50mg · USA · Card / Crypto
  • Third-party tested (Janoshik)
  • COAs provided — Comprehensive
  • Best $/mg in stock right now
  • 4.8★ community rating
$45.66
$0.91/mg
Buy at Valor Peptides
Affiliate link · disclosure
Also solid
Modern Research Peptides
50mg · $0.93/mg
$46.26
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Peptidology
25mg · $4.03/mg
$100.85
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Lab Sourced
50mg · $1.27/mg
$63.44
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/ research index

The research base

Research Maturity
★★★★
4/5 — Volume of studies
Evidence Strength
★★★★
4/5 — Quality of evidence

Multiple human trials. Strong GH/IGF-1 elevation data.

/ mechanism of action

How it works

Ghrelin receptor agonist. Active orally — unique among GH-related compounds.

/ research dosing

Common research protocols

Range
10-25 mg/day (most common: 12.5-25mg/day)
Frequency
Once daily, usually before bed
Route
Oral (capsule or solution)
Cycle
2-3 months on, 1 month off
Research notes

Oral GH secretagogue (ghrelin mimetic). Causes substantial appetite increase, water retention, and can elevate cortisol. Bedtime dosing common but causes vivid dreams in some. Blood sugar/insulin sensitivity should be monitored.

FOR RESEARCH USE ONLY. Doses listed are compiled from published research literature, FDA-approved drug labels, and well-documented research community practice. Not medical advice.
/ standalone use

As a solo compound

Effective standalone, especially for those preferring oral administration.

/ side effects

What to know

Common: increased appetite, water retention, mild lethargy.

/ timeline

Realistic expectations

2-4 weeks

FOR RESEARCH USE ONLY. MK-677 is intended for laboratory research and not for human consumption.