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Best Peptides for Social Anxiety: Research Compound Comparison
This table compares peptide candidates under investigation for anxiolytic effects based on mechanism, bioavailability, administration route, and current evidence quality. Selank Opioid receptor modulation (mu/delta), HPA axis downregulation, enkephalin pathway
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- This table compares peptide candidates under investigation for anxiolytic effects based on mechanism, bioavailability, administration route, and current evidence quality.
- Selank
- Opioid receptor modulation (mu/delta), HPA axis downregulation, enkephalin pathway activation
- Low oral bioavailability; intranasal or subcutaneous administration
- ~30 min circulation; effects 4–6 hours
- Multiple rodent RCTs; limited human trials (open-label)
- Most direct anxiolytic pathway; well-tolerated in preclinical models; lacks large-scale human RCTs
- Cerebrolysin
- Neurotrophic factor upregulation (BDNF, NGF, CNTF); synaptic plasticity enhancement
- Zero oral bioavailability; IM or IV only
- 8–12 hours; neuroplastic effects cumulative over weeks
- Established for stroke/dementia; exploratory for anxiety
- Indirect anxiolytic via neuroplasticity; evidence strongest in cognitive domains; IV administration limits accessibility
- Dihexa
- HGF potentiation; c-Met receptor activation; synaptogenesis and fear extinction learning
- High oral bioavailability (peptidomimetic structure)
- 2–4 hours; synaptic effects persist 7–14 days
- Rodent models only; no human anxiety trials
- Unique oral route; strongest evidence for cognitive flexibility; human safety data limited
- Semax
- ACTH analogue; BDNF upregulation; dopamine receptor modulation
- Intranasal administration; moderate CNS penetration
- 30–60 min; cognitive effects 4–8 hours
- Rodent and limited human cognitive trials; no anxiety-specific RCTs
- Broader nootropic profile; less targeted for anxiety than Selank; overlapping mechanisms
- P21
- CNTF derivative; neuroprotection and synaptic remodelling
- Subcutaneous; CNS penetration unclear
- Unknown; likely 24–48 hours
- Minimal published data; largely anecdotal
- Promising theoretical mechanism; insufficient evidence for recommendation