TB-500 vs Selank
A detailed comparison to help you understand the differences and choose the right peptide for your research goals.
TB-500
Thymosin Beta-4 (TB-500) is a naturally occurring peptide present in almost all human and animal cells. It plays a crucial role in tissue repair and regeneration.
Full details →Selank
Selank is a synthetic peptide derived from the naturally occurring immunomodulatory peptide tuftsin. Developed in Russia for anxiety and cognitive enhancement.
Full details →Side-by-Side Comparison
| Aspect | TB-500 | Selank |
|---|---|---|
| Mechanism | TB-500 promotes cell migration and differentiation, regulates actin (a cell-building protein), and reduces inflammation. It supports the formation of new blood vessels and wound healing. | Modulates the expression of brain-derived neurotrophic factor (BDNF) and affects serotonin and norepinephrine systems. Has immunomodulatory and anxiolytic properties. |
| Typical Dosage | Research protocols typically use 2-2.5mg twice weekly during the loading phase, followed by maintenance dosing of 2mg every 2 weeks. | Intranasal administration: 250-500mcg 2-3 times daily. Subcutaneous: 250-500mcg daily. |
| Administration | Administered via subcutaneous or intramuscular injection. Some protocols suggest injection near injury sites. | Most commonly administered intranasally for cognitive effects. Can also be injected subcutaneously. |
| Side Effects | May cause temporary fatigue, headache, or localized irritation at injection sites. | Generally well-tolerated. Some users report mild fatigue or nasal irritation with intranasal use. |
| Best For |
Key Differences
Unique to TB-500:
Unique to Selank:
Detailed Analysis
Selank and TB-500 are used for different purposes and have limited overlap in their applications.
Which Should You Choose?
Choose Selank for Cognitive Performance. Choose TB-500 for Muscle Growth, Recovery & Healing.