Compare Peptides
Select any two compounds for a side-by-side comparison of mechanism, uses, risks, and FDA regulatory status.
Popular comparisons
An antimicrobial peptide produced by epithelial cells in response to infection and inflammation. Part of the innate immune system's first line of defense. Research interest is growing for its potential in wound healing and anti-biofilm applications.
A thymic peptide that plays a central role in immune system regulation. Approved as a drug in over 35 countries (though not in the US) for hepatitis B and C treatment and as an immune booster.
Disrupts microbial cell membranes through electrostatic interaction with negatively charged phospholipids. Also acts as a chemoattractant for dendritic cells and T-cells, bridging innate and adaptive immunity. Upregulated by IL-1β, TNF-α, and bacterial components.
Enhances T-cell function, promotes dendritic cell maturation, and modulates cytokine production. Acts as an immune system regulator rather than a simple stimulant, helping to balance immune responses.
- Antimicrobial research
- Wound healing research
- Biofilm disruption
- Immune modulation research
- Immune system support
- Chronic infection management
- Cancer adjunct therapy (in some countries)
- Post-illness recovery
- Autoimmune condition management
- Research compound only — no human clinical use data
- Potential for immune overstimulation
- Stability challenges in formulation
- Cost-prohibitive for therapeutic use currently
- Generally well-tolerated in clinical use
- Injection site reactions
- Rare allergic reactions
- May interact with immunosuppressive drugs
No FDA regulatory category. Available only as a research reagent. No clinical trials for therapeutic use. Active area of academic research.
Reclassified to Category 1 in February 2026 as part of the HHS announcement restoring compounding access. Not affected by the April 15, 2026 Category 2 removal action. Approved as Zadaxin in 35+ countries but not FDA-approved in the US. Available through licensed 503A compounding pharmacies with a physician prescription.
- Human beta-defensins: an update
2012 · PubMed
This comparison is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before starting any peptide therapy.