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Reference only · Not medical advice · For adults 18+ · No dosing information is published here
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Cognitive / Neuro

Noopept — reference

A synthetic dipeptide developed in Russia and marketed for cognitive effects.

Regulatory statusNot FDA-Approved
Published half-life~0.1–1 hour (rapidly hydrolyzed to cycloprolylglycine)
Evidence levelPK study
CategoryCognitive / Neuro

Regulatory status

Not FDA-Approved. Not FDA-approved. The FDA has stated it does not meet the definition of a dietary ingredient, so US products marketed as supplements are outside that framework.

Reported cautions

⚠ Worth knowing. Widely sold as a supplement despite not qualifying as one. Evidence is largely Russian and not independently replicated.

Pharmacokinetics

Published figures give an elimination half-life of ~0.1–1 hour (rapidly hydrolyzed to cycloprolylglycine). Small human/animal PK studies exist; parent compound clears fast.

This figure is tagged PK study in our evidence system. This figure comes from a published pharmacokinetic study rather than a label or registration trial. Sample sizes in such studies are often small and figures vary between them, so treat the number as a range rather than a constant. You can see the shape this implies between doses in the Half-Life Visualizer, and compare it against every other compound in the Half-Life Data Table. Our sourcing page explains what each tier means.

Remember that an estimated curve is a model built from a population figure, not a measurement of your blood. Individual clearance varies, and for depot injections the figure describes release from the injection site rather than the compound clearing. Half-life explained →

What Peptide Plug does and does not publish

This page carries regulatory status, general context and published pharmacokinetics. It carries no dose, frequency or cycle information — that is a deliberate editorial line, because dosing is a clinical decision rather than reference data. We also do not sell, supply, source or link to vendors for any compound.

Frequently asked

Is Noopept FDA-approved?
Not FDA-Approved. Not FDA-approved. The FDA has stated it does not meet the definition of a dietary ingredient, so US products marketed as supplements are outside that framework.
What is the half-life of Noopept?
Published figures give ~0.1–1 hour (rapidly hydrolyzed to cycloprolylglycine). Small human/animal PK studies exist; parent compound clears fast.
How reliable is that half-life figure?
It is tagged “PK study” in our system. This figure comes from a published pharmacokinetic study rather than a label or registration trial. Sample sizes in such studies are often small and figures vary between them, so treat the number as a range rather than a constant.
What cautions are associated with Noopept?
Widely sold as a supplement despite not qualifying as one. Evidence is largely Russian and not independently replicated.
Does Peptide Plug publish dosing for Noopept?
No. This library publishes regulatory status, general context and pharmacokinetics only. Dose, frequency and cycle information is deliberately absent from these public pages — those are clinical decisions, not reference data.
Does Peptide Plug sell Noopept?
No. We do not sell, supply, source or link to vendors for any compound, and we have no affiliate arrangements with suppliers. Peptide Plug is a tracking and calculation tool.

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Reference information, not medical advice. This page describes regulatory status and published pharmacokinetics. It does not tell you whether to use this compound, how much to use, how often, or whether it is safe for you. Peptide Plug does not sell, supply or source any compound. Those decisions belong to you and a licensed clinician.

Part of the Peptide Plug research library · How we source our figures