Source comparison
Injectable vs intranasal Selank
Intranasal Selank (most common): Bioavailability: 60-70% Dose: 300-600mcg per nostril, 1-2x daily Very convenient Fast onset (15-30 minutes) No needles required Most users start here Injectable Selank: Bioavailability: 80-90% (higher) Dose: 250-1,000mcg daily
This comparison does not assign a generated winner or score.
- Intranasal Selank (most common):
- Bioavailability: 60-70%
- Dose: 300-600mcg per nostril, 1-2x daily
- Very convenient
- Fast onset (15-30 minutes)
- No needles required
- Most users start here
- Injectable Selank:
- Bioavailability: 80-90% (higher)
- Dose: 250-1,000mcg daily subcutaneous
- More predictable absorption
- Slightly longer duration
- Requires injection skill
- More cost-effective per dose
- Why someone would choose injectable:
- Nasal irritation from intranasal use
- Want higher bioavailability
- Already comfortable with injections
- More precise dosing
- Combining with other injectable peptides
- Cost considerations
- Effectiveness comparison:
- Both highly effective
- Injectable slightly more potent per mcg
- Difference is modest
- Personal preference matters most
- See our injectable vs oral peptides comparison and peptides for anxiety guide for comprehensive anxiety protocols.