Reconstitution chart: 5 mg vial
| BAC water added | Concentration | Draw for 250 mcg dose | Draw for 500 mcg dose |
|---|---|---|---|
| 1 mL | 5,000 mcg/mL | 5 units | 10 units |
| 1.5 mL | 3,333 mcg/mL | 7.5 units | 15 units |
| 2 mL | 2,500 mcg/mL | 10 units | 20 units |
| 2.5 mL | 2,000 mcg/mL | 12.5 units | 25 units |
Draws are U-100 insulin syringe units (100 units = 1 mL). Formula: dose in mcg ÷ (vial mcg ÷ water mL) × 100. The calculator above handles any other combination.
About Selank
Selank is a synthetic peptide developed in Russia, based on a fragment of a natural immune-signaling molecule called tuftsin. Research interest centers on anxiety, mood, and cognition, and it was studied and used clinically in Russia, but it holds no approval from the FDA or other Western regulators. Most of the published work is Russian and animal-based, so treat the Western research-chemical supply as exactly that.
Selank exists in two delivery forms, and the distinction matters before you calculate anything. The nasal spray is what much of the older literature used, and many buyers still use it that way. This page covers the injectable powder form only. If your vial is meant for nasal use, the reconstitution math here does not map to spray dosing, so confirm what you hold before mixing. Community protocols for injection typically discuss 250 to 500 mcg per day, sometimes split across the day because the molecule clears quickly.
The doses are microgram-scale, so the water you add is about readability. From a 5 mg vial with 1 mL of BAC water, a 250 mcg dose is a 5 unit draw, hard to measure cleanly. Stretch it to 2.5 mL and the same dose becomes 12.5 units, far easier to read on an insulin syringe. A 5 mg vial holds 5,000 mcg, so at 250 mcg per day it covers twenty days. Setting the unit toggle to mg instead of mcg produces a 1,000x error, which is why this page defaults to mcg. Refrigerate after mixing.
Quick facts
- Status: no Western regulatory approval; most research is Russian and animal-based
- Two forms circulate: nasal spray and injectable. This page covers the injectable only
- Communities discuss 250 to 500 mcg per day for injection, sometimes split
- Common vial sizes: 5 and 10 mg
Stop gambling on where you buy your peptides.
The calculator tells you how much to draw. The Verified Buyer's Manual tells you how to source the peptide itself without getting scammed or shipped underdosed product. Trace any compound back to the lab that made it, read a Certificate of Analysis and catch a fake, grade any seller before you pay, and price it right. A repeatable system, not a list of names that goes stale.
- How to read a lab report (COA) and spot a faked or misattributed one
- Source tracing: find verified sellers yourself from public test data
- The vetting grid: a yes-or-no scorecard for any seller
- Real cost-per-mg math so you never overpay
- Reconstitution, storage, and the first 72 hours after a package lands
Supplies you will need
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