P21
Neurogenic peptide derived from CNTF.
Focus, memory & neuroprotection.
Commonly logged P21 doses
These are the dose sizes Pepprep offers as quick-log buttons, measured in mg. They are reference points people commonly record — not a recommendation, and not a protocol.
- 0.5 mg
- 1 mg
Practical notes
- Consistency beats intensity — same time of day, every day.
- Log right after your dose so your streak never breaks.
- Hydrate well; most protocols work better on 2.5-3L of water a day.
- Prioritise 7-9 hours of sleep — recovery is where results show up.
- Track how you feel, not just what you take.
Work out your P21 draw
Enter your vial size and bacteriostatic water into the free calculator to get the exact insulin-syringe mark, how many doses the vial holds and what each dose costs.
Other cognitive peptides
Pepprep is a tracking tool and does not prescribe, diagnose or recommend any compound or dose. Read the medical disclaimer.