Larazotide Acetate vs Sermorelin
Side-by-side comparison of key properties, dosing, and research.
Recovery & Repair
Larazotide AcetateGrowth Hormone PeptidesAnti-Aging & Longevity
Sermorelin- Summary
- Larazotide acetate is an 8-amino acid peptide (Gly-Gly-Val-Leu-Val-Gln-Pro-Gly) derived from Zonula Occludens Toxin (ZOT) of Vibrio cholerae. It paradoxically acts as a ZOT antagonist to close tight junctions and reduce intestinal permeability ('leaky gut'). It is the most advanced clinical compound targeting gut permeability directly.
- Sermorelin is a bioidentical synthetic peptide comprising the first 29 amino acids of naturally occurring GHRH. It is FDA-approved for diagnostic use and widely prescribed off-label for anti-aging, stimulating growth hormone production in a natural pulsatile pattern that mimics the body's own rhythm.
- Half-Life
- Local gut action; minimal systemic exposure
- 10–20 minutes
- Admin Route
- Oral
- SubQ
- Research
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- Typical Dose
- 0.5-2 mg
- 200–500 mcg
- Frequency
- 3x daily
- 5–7 days per week
- Key Benefits
- Directly reduces intestinal tight junction permeability
- Clinical efficacy in celiac disease (Phase 3 trials)
- Reduces systemic inflammation from gut permeability
- Targets root cause of leaky gut (Zonulin pathway)
- Local gut action without systemic absorption
- Potential application in IBS, IBD, autoimmune conditions
- Increases energy and vitality
- Improves body composition (more muscle, less fat)
- Enhances skin thickness and elasticity
- Strengthens immune system
- Improves sleep quality and REM sleep
- Supports bone density
- Enhances mental clarity and focus
- Safer than exogenous HGH — respects natural feedback loops
- FDA-approved for GH diagnostic use
- Side Effects
- Headache (mild, dose-dependent)
- Nausea (rare)
- Well-tolerated overall in clinical trials
- Injection site irritation
- Flushing
- Headache
- Dizziness
- +2 more
- Stacks With
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