New — Free Peptide Starter Guide (2026): 13 chapters, 34 cited studies

Get it free
ToolsCompareLarazotide Acetate vs Humanin

Larazotide Acetate vs Humanin

Side-by-side comparison of key properties, dosing, and research.

Recovery & Repair
Larazotide Acetate
Anti-Aging & Longevity
Humanin
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.
Humanin is a mitochondria-derived peptide (MDP) encoded in the 16S rRNA region of the mitochondrial genome. It protects neurons and other cells from apoptosis, improves insulin sensitivity, and declines significantly with age. HNG (S14G-Humanin) is a synthetic analog with 1000x greater potency.
Half-Life
Local gut action; minimal systemic exposure
~4–8 hours (HNG)
Admin Route
Oral
SubQ
Research
Typical Dose
0.5-2 mg
2–8 mg
Frequency
3x daily
3–5 times 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
  • Neuroprotection against amyloid-beta toxicity (Alzheimer's relevance)
  • Inhibits cellular apoptosis
  • Improves insulin sensitivity
  • Reduces cardiovascular risk markers
  • Anti-inflammatory effects
  • Correlates with longevity in centenarian studies
  • Protects against ischemic injury
  • Potential cancer cell apoptosis sensitization
Side Effects
  • Headache (mild, dose-dependent)
  • Nausea (rare)
  • Well-tolerated overall in clinical trials
  • Injection site irritation
  • Limited human safety data available
Stacks With