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Everything you need to know about P-21 dosing — protocols, safety, and where to buy.
Dose Range
10 mcg - 50 mcg intranasal (research doses)
Dosage Calculator
Calculate exact dosing for P-21.
Dosing data for P-21 is being researched. Check the compound page for the latest information.
Contraindications
Active brain tumors. Pregnancy or breastfeeding. Very limited safety data — use with extreme caution.
Where to Buy P-21
Compare 1 listing across 1 vendor — from $49.99
The typical dose range for P-21 is 10 mcg - 50 mcg intranasal (research doses). Always start with the lowest effective dose.
Administration frequency depends on the specific protocol. Consult current research literature.
Cycling requirements depend on the protocol. Follow established research guidelines.
Very limited human data. Intranasal: mild nasal irritation. Possible: headache, mild appetite changes (CNTF affects appetite). Experimental compound.
Compare 1 listings from 1 vendor on our price comparison page — starting from $49.99.