Humanin vs Alpha-Defensin
A detailed comparison to help you understand the differences and choose the right peptide for your research goals.
Humanin
Humanin is a mitochondrial-derived peptide with potent cytoprotective effects. Discovered in 2001, it has shown promise in protecting against age-related diseases including Alzheimer's, cardiovascular disease, and diabetes.
Full details →Alpha-Defensin
Alpha-defensins are small cationic peptides that are key components of the innate immune system. They have broad-spectrum antimicrobial activity against bacteria, fungi, and some viruses.
Full details →Side-by-Side Comparison
| Aspect | Humanin | Alpha-Defensin |
|---|---|---|
| Mechanism | Binds to IGFBP-3 and BAX, inhibiting apoptosis. Activates STAT3 signaling and enhances cellular survival under stress. Protects mitochondrial function and reduces oxidative stress. | Insert into microbial membranes to form pores, leading to cell death. Also have immunomodulatory effects including chemotaxis of immune cells and cytokine modulation. |
| Typical Dosage | Research protocols vary widely. Studies have used doses from micrograms to milligrams depending on the analog and route. HNG (S14G-Humanin) is a more potent analog. | Research compound - dosing varies by application. Typically studied in laboratory and early clinical research settings rather than for general use. |
| Administration | Subcutaneous or intraperitoneal injection in research. Various analogs exist with different potencies and stabilities. | Various routes studied including topical, local injection, and systemic administration depending on application. |
| Side Effects | Limited human data. Generally well-tolerated in animal studies. May affect glucose metabolism. | Limited human use data. May cause local inflammation. Potential for immune activation effects. |
| Best For |
Key Differences
Unique to Humanin:
Unique to Alpha-Defensin:
Detailed Analysis
Alpha-Defensin and Humanin are used for different purposes and have limited overlap in their applications.
Which Should You Choose?
Choose Alpha-Defensin for Recovery & Healing, Immune Support. Choose Humanin for Cognitive Performance, Anti-Aging & Longevity.