P21 Dosage Guide

Complete guide to P21 dosing protocols, administration methods, and safety considerations for research purposes.

Research Use Only: The dosage information provided is for educational and research purposes. Peptides are not approved by the FDA for human use. Always consult with a healthcare professional.

Recommended Dosage

Research protocols typically use 1-5mg administered intranasally or subcutaneously. Often used in cycles of 2-4 weeks.

Administration Method

Can be administered intranasally for direct CNS access or subcutaneously. Best used cyclically rather than continuously.

Side Effects to Monitor

Limited data. Reported effects include mild headache, temporary brain fog during initial use, and fatigue.

Safety Considerations & Risks

Very limited human research. Long-term effects unknown. Theoretical concerns about effects on cell proliferation pathways.