Lactoferricin vs Thymalin
A detailed comparison to help you understand the differences and choose the right peptide for your research goals.
Lactoferricin
Lactoferricin is an antimicrobial peptide derived from lactoferrin, a protein found in milk and other secretions. It has potent antibacterial, antiviral, and antifungal properties.
Full details →Thymalin
Thymalin is a polypeptide preparation derived from calf thymus. Developed in Russia, it has been used for decades to support immune function and has shown potential anti-aging effects in long-term studies.
Full details →Side-by-Side Comparison
| Aspect | Lactoferricin | Thymalin |
|---|---|---|
| Dose Range | 100 mcg–500 mcg | 5 mg–10 mg |
| Frequency | 1x daily | 1x daily |
| Cycle Length | 2–4 weeks | 1–2 weeks |
| Route | subcutaneous | intramuscular |
| Mechanism | Binds to and disrupts microbial membranes through electrostatic interactions. Also binds to lipopolysaccharide (LPS) to neutralize endotoxins and has immunomodulatory effects. | Regulates the ratio of T-cell subpopulations, stimulates cellular immunity, and enhances phagocytosis. Also affects neuroendocrine regulation and may influence melatonin production. |
| Typical Dosage | Research applications vary widely. Oral lactoferrin supplements (containing lactoferricin precursor) typically dosed at 100-400mg daily. | Clinical protocols: 5-20mg daily intramuscularly for 3-10 days. Often cycled 1-2 times per year for maintenance. |
| Administration | Available through lactoferrin supplementation orally. Purified lactoferricin primarily used in research settings. | Intramuscular injection. Usually administered in short courses rather than continuously. Often combined with Epithalamin for anti-aging protocols. |
| Side Effects | Lactoferrin supplementation is generally well-tolerated. May cause GI upset in some individuals. Derived from milk so caution with dairy allergies. | Generally well-tolerated. May cause injection site reactions or temporary flu-like symptoms as immune function is modulated. |
| Best For |
What They Have in Common
Lactoferricin, Thymalin are both commonly used for:
Key Differences
Unique to Lactoferricin:
Unique to Thymalin:
Which Has Stronger Evidence?
| Goal | Lactoferricin | Thymalin |
|---|---|---|
| Immune Support | high | high |
Key Studies
Lactoferricin
- Lactoferricin enables adenovirus infection of human skeletal muscle cells.
Npj viruses, 2025
- Lactoferricin, an antimicrobial motif derived from lactoferrin with food preservation potential.
Critical reviews in food science and nutrition, 2024
- Expression and antimicrobial activity of the recombinant bovine lactoferricin in Pichia pastoris.
Synthetic and systems biotechnology, 2024
Thymalin
- Reparative osteogenesis in mandible in cases of filling a bone defect with hydroxyapatite-containing osteotropic material and injecting the surrounding soft tissues with thymalin: experimental and morphological study.
Wiadomosci lekarskie (Warsaw, Poland : 1960), 2024
- Expression features of T-lymphocytes, B-lymphocytes and macrophages in the post-traumatic regenerate of the mandible rats under conditions of filling a bone defect with hydroxyapatite-containing osteotropic material and thymalin injecting the surrounding soft tissues.
Polski merkuriusz lekarski : organ Polskiego Towarzystwa Lekarskiego, 2024
- The Influence of KE and EW Dipeptides in the Composition of the Thymalin Drug on Gene Expression and Protein Synthesis Involved in the Pathogenesis of COVID-19.
International journal of molecular sciences, 2023
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