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P21 (P021)

NGF-derived peptide

Research / unapproved

What it is

A research peptide derived from nerve growth factor, studied for effects on brain-cell growth.

What the evidence shows

Pre-clinical research only; no robust human evidence for marketed cognitive benefits.

Safety & reported risks

Unregulated supply with unknown quality and no established human safety profile.

Status in Australia

Not approved as a medicine in Australia. Online supply is not a lawful pathway for human use.

How it’s lawfully accessed

No lawful consumer supply. Not registered for human use.

Related peptides

DihexaAngiotensin-derived peptideResearch / unapprovedCerebrolysinPeptide preparation (porcine-derived)Not ARTG-approvedSemaxSynthetic neuropeptideNot for human use

Sources & further reading

This entry is general information about P21 (P021), not a recommendation to use it. We don’t provide dosing, protocols or sourcing. Speak to a registered practitioner.

Written by The Peptides.au editorial team
Editorial review Checked against current TGA, ARTG and AHPRA public guidance
Last updated 1 June 2026

This is general education, not medical advice. Peptides.au does not sell, supply, recommend or promote any product or clinic. Always speak with a registered Australian health practitioner before making any health decision.