Omentin-1 vs Ibutamoren

Head-to-head comparison of Omentin-1 (Omentin-1 (Intelectin-1, ITLN1)) and Ibutamoren (Ibutamoren mesylate (MK-677)) — benefits, dosing, side effects, research data, and where to buy.

Research Score

PropertyOmentin-1Ibutamoren
CategoryDiabetes & MetabolicGrowth Hormone
Full NameOmentin-1 (Intelectin-1, ITLN1)Ibutamoren mesylate (MK-677)
Molecular Weight~35 kDaN/A
Half-Lifehoursabout 24 hours
Amino Acids313N/A
Typical DoseNo approved human dose; research use only10-25 mg/day
RouteIV|SCOral
Purity≥98%≥98%
Studies Count82180
Research StatusPre-clinicalClinical

Omentin-1 Benefits

  • insulin sensitivity
  • glucose uptake
  • lipid handling

Ibutamoren Benefits

  • raises GH/IGF-1
  • increases appetite
  • supports lean mass retention
  • oral non-peptide secretagogue

Omentin-1 Dosing

not established|not established

Ibutamoren Dosing

10-25 mg orally once daily|take consistently at the same time each day|monitor fasting glucose and edema in longer studies

Omentin-1 Side Effects

  • unknown
  • immunogenicity risk

Ibutamoren Side Effects

  • increased appetite
  • water retention/edema
  • somnolence or lethargy

Research Overview

Omentin-1

Lower omentin-1 levels are often associated with obesity, insulin resistance, and metabolic syndrome. Research continues on its use as a biomarker and as a mechanistic lead for AMPK-linked metabolic interventions.

Ibutamoren

Clinical studies show oral ibutamoren reliably elevates GH and IGF-1 over 24 hours with once-daily dosing. Body composition and appetite effects vary by population, and development has been limited by metabolic side effects.

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Common Stacking Partners

Omentin-1 stacks with:

Intelectin-1ITLN1

Ibutamoren stacks with:

Resistance trainingHigh-protein diet
AMPKadipokineinsulin-sensitizingbiomarkerghrelin-receptor-agonistgh-secretagogueoral