P021 · DOSSIER

P021

P021 · P-021
LEGAL DE · NOT APPROVEDEVIDENCE · PRECLINICAL2 STUDIES
FIG.01 — SIGNAL CHAIN
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Mechanism of action

What P021 does in the body — step by step.

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P021 is a small, peptidomimetic molecule derived from an active region of ciliary neurotrophic factor (CNTF).

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It is designed to be metabolically stable and able to cross the blood–brain barrier.

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In preclinical models it is credited with promoting neurogenesis and neurotrophic signalling (including BDNF) and inhibiting pathological tau changes.

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Research status

How far along is the evidence?

PRECLINICALEARLY CLINICAL STUDIESCLINICALLY ESTABLISHED
P021 has so far been studied exclusively preclinically, mainly in rodent and disease models of Alzheimer's disease.
P021 has so far been studied exclusively preclinically, mainly in rodent and disease models of Alzheimer's disease.
Work describes prevention of dendritic and synaptic deficits and of cognitive impairment.
Controlled human studies do not exist.
Safety and efficacy in humans are not demonstrated.
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Known risks

Without human data, safety statements are limited. What is known:

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No human studies — safety profile entirely unknown
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Long-term effects on the nervous system unknown
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Interactions not characterised
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Product quality cannot be verified from unapproved sources
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Cited studies

Chronological — links lead to the source.

2017
Prevention of dendritic and synaptic deficits and cognitive impairment with a neurotrophic compound
PubMed 28655344 →
2022
Alzheimer's Disease: Challenges and a Therapeutic Opportunity to Treat It with a Neurotrophic Compound
PubMed 36291618 →
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Frequently asked questions

What is P021?+

P021 is a small, peptidomimetic molecule derived from an active region of ciliary neurotrophic factor (CNTF).

What type of peptide is P021?+

P021 belongs to the Neuropeptide class.

What is P021 used for?+

In research, P021 has primarily been investigated in the context of: Cognition. These are research findings (evidence: preclinical), not proven benefits in humans and not a usage recommendation.

Is P021 legal in Germany?+

P021 is not approved as a medicine in Germany. Obtaining it outside clinical studies is legally problematic.

Is P021 FDA-approved / legal in the US?+

No. P021 is not FDA-approved as a drug in the US; it is mostly sold as a research chemical and not for human consumption.

Is P021 legal in Canada?+

No. P021 is not authorized by Health Canada and not intended for human consumption.

Where can I buy P021?+

Peptica sells nothing and names no sources. P021 is "not approved" in Germany; obtaining unapproved substances outside clinical studies is illegal and carries quality and safety risks.

What is the dosage of P021?+

Peptica publishes no dosing. There are no approved dosing guidelines for P021; figures circulating online stem from animal studies or anecdote, not from validated human protocols. This is not medical advice.

Is P021 banned in sport (WADA)?+

P021 is currently not on the WADA Prohibited List.

What are the known risks of P021?+

Documented risks include: No human studies — safety profile entirely unknown; Long-term effects on the nervous system unknown. This is not a complete safety assessment and not medical advice — see the risks section for the full list.

How well researched is P021?+

The evidence is classified as “preclinical”. 2 studies are cited on this page.

What is the molecular weight of P021?+

P021 has a molar mass of about 578.7 Da.

Which peptides are related to P021?+

Closely related entries: Semax, Dihexa. A direct side-by-side comparison is available via the compare function.

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Dossier

Legal · Structure · Sources.

LEGAL STATUS BY REGION
Germanynot approved

P021 is not approved as a medicine and is solely a preclinical research substance. Not on the WADA Prohibited List. Obtaining it as a research chemical carries considerable quality and safety risks.

Legal status varies by country and can change. This is not legal advice.

SOURCES & EXTERNAL DATABASES

Methodology: Peptica compiles publicly available studies and regulatory information and assigns each statement an evidence level. Not medical advice. No warranty.

RELATED PEPTIDES & FURTHER READING
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Community notes

Note: These posts are user opinions and not medical advice. Posts containing dosages, therapeutic claims or purchase recommendations are removed. All entries are manually reviewed before publication.
This page is intended solely for factual, scientifically oriented information. No medical advice · no dosage or usage recommendations · no claims of efficacy · no substitute for medical consultation. Peptica sells no substances. Partner links are marked as advertising; Peptica may earn a commission. © 2026 Peptica · Issue 01