Alpha-Defensin vs Thymulin

A detailed comparison to help you understand the differences and choose the right peptide for your research goals.

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 →

Thymulin

Thymulin (Facteur Thymique Sérique) is a zinc-dependent nonapeptide hormone produced by thymic epithelial cells. It plays important roles in T-cell differentiation and immune system maturation.

Full details →

Side-by-Side Comparison

Aspect	Alpha-Defensin	Thymulin
Dose Range	100 mcg–500 mcg	100 mcg–400 mcg
Frequency	1x daily	1x daily
Cycle Length	2–4 weeks	4–8 weeks
Route	subcutaneous	subcutaneous
Mechanism	Insert into microbial membranes to form pores, leading to cell death. Also have immunomodulatory effects including chemotaxis of immune cells and cytokine modulation.	Requires zinc for biological activity. Promotes T-cell differentiation, modulates cytokine production, and influences neuroendocrine function. Levels decline significantly with age.
Typical Dosage	Research compound - dosing varies by application. Typically studied in laboratory and early clinical research settings rather than for general use.	Research protocols vary. Often studied alongside zinc supplementation. Typical research doses in the microgram range.
Administration	Various routes studied including topical, local injection, and systemic administration depending on application.	Subcutaneous or intramuscular injection in research settings. Requires adequate zinc status for activity.
Side Effects	Limited human use data. May cause local inflammation. Potential for immune activation effects.	Limited data on exogenous administration. Theoretical effects on immune function require monitoring.
Best For	Recovery & Healing Immune Support	Immune Support Anti-Aging & Longevity