Vial sizes vary by vendor. Smaller bottles are usually 3 mL; larger bottles are often 10 mL. Match the label on the vial you actually bought, then use the calculator below if you need to adjust.
Overview
Cerebrolysin is a porcine brain-derived peptide preparation with decades of clinical use in Europe for stroke and cognitive decline. It’s the heavyweight of the nootropic peptide class — and one of the few with real clinical literature behind it.
Preparation
Reconstitute a 60 mg vial with 3 mL of bacteriostatic water (BAC) for a 20 mg/mL concentration. Use within 24 hours once mixed — no preservative in the peptide itself.
| Vial | BAC | Concentration |
|---|---|---|
| 60 mg | 3 mL | 20 mg/mL |
Protocol
| Period | Dose | Units (@ 20 mg/mL) | Frequency |
|---|---|---|---|
| Week 1 | 20 mg | 100 units (1.00 mL) | 1x/day |
| Week 2 | 24 mg | 120 units (1.20 mL) — split 2 × 60 u | 1x/day |
| Week 3 | 28 mg | 140 units (1.40 mL) — split 2 × 70 u | 1x/day |
| Week 4+ | 32 mg | 160 units (1.60 mL) — split 2 × 80 u | 1x/day |
Cycle
4–8 week daily cycles (some protocols run 20 days on, 10 off). Clinical studies used IM injection; split larger volumes into separate syringes.