Standard Dosage Range
Research dosing range: 200–500 mcg per day (intranasal or subcutaneous)
Educational reference only
Dosage by Use Case
Anxiety & Generalized Anxiety Disorder (GAD)
2–8 weeks
Intranasal administration preferred for rapid onset of anxiolytic effects. Subcutaneous injection provides a more sustained effect. Cycle with breaks for optimal results.
Cognitive Enhancement & Memory Consolidation
4–12 weeks
Intranasal administration prior to cognitive tasks or learning sessions. Some users report improved focus and memory recall. Cycle for optimal results and to prevent desensitization.
Stress Reduction & Mood Improvement
4–8 weeks
Subcutaneous injection for sustained stress reduction and mood enhancement. May improve resilience to stressors and promote a sense of well-being.
Immune Modulation & Th1/Th2 Balance
4-6 weeks
Primarily theoretical. Some research suggests Selank may influence immune function by modulating cytokine production. Subcutaneous administration is preferred. Monitor for any adverse immune-related effects.
Timing & Frequency
For anxiety and cognitive enhancement, intranasal administration is typically timed 15-30 minutes before anticipated stressful events or cognitive tasks. Subcutaneous injections are usually administered in the morning or evening for sustained effects. The short half-life necessitates frequent dosing for continuous coverage.
Cycle Guidance
While Selank does not appear to suppress endogenous systems, cycling is recommended to prevent tolerance and maintain efficacy. A common practice is to cycle for 4–8 weeks followed by a 2–4 week break. Monitor individual response and adjust cycle length accordingly. Prolonged use without cycling may lead to diminished effects.
Reconstitution Reference
Quick reference for reconstituting Selank. For custom vial sizes and concentrations, use the Reconstitution Calculator.
| Common Vial Size | Typically 5 mg per vial |
| BAC Water Volume | 2.5 mL bacteriostatic water for 2 mg/mL concentration |
| Concentration & Draw | At 2 mg/mL: 100 mcg = 0.05 mL (5 units on a 100-unit insulin syringe) |
| Storage | Refrigerate at 2–8°C after reconstitution. Keep lyophilized powder at room temperature or refrigerated. |
| Stability | Reconstituted solution stable up to 30 days refrigerated. Lyophilized powder stable 12-24 months per manufacturer specifications. |
Frequently Asked Questions
What is the typical Selank dosage for anxiety?
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Can Selank be taken orally?
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Last updated: 2026-02-19