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Cognitive & neuroprotective

Cortagen

Also known as: Cortagen bioregulator · Cortical peptide

A short peptide bioregulator from Russian research, studied for effects on brain cortex tissue and neural function.

Cortagen at a glance

NameCortagen
Also known asCortagen bioregulator, Cortical peptide
CategoryCognitive & neuroprotective
TypePeptide
SequenceAla-Glu-Asp-Pro
Typical dose~2-4 mg per day
FrequencyOnce daily over short courses in reported use
RouteIntramuscular injection (research)
Half-lifeVery short; rapidly cleared.

Overview

Cortagen is a short synthetic peptide bioregulator developed within Khavinson's program and associated with the brain cortex. It is commonly cited in the Russian research literature for context on neuroprotection and recovery of nerve function. As with the other bioregulators, human evidence is limited, largely non-Western, and not widely replicated by independent groups.

How it’s thought to work

  • Proposed to act as a tissue-specific peptide bioregulator for neural tissue.
  • Reported to influence nerve regeneration in animal studies.
  • Suggested to modulate gene expression relevant to brain cells.
  • Described as supporting antioxidant and neurotrophic processes.

Researched uses

  • Peripheral nerve recovery in animal research
  • Neuroprotection studies
  • Cognitive and neural function research
  • Recovery after neural injury (preclinical)

Commonly cited protocol

Typical dose~2-4 mg per day
FrequencyOnce daily over short courses in reported use
RouteIntramuscular injection (research)
NotesProvided as a lyophilized powder in original formulations.

Reconstitution

Commonly a 5 mg vial; 5 mg in 2 mL gives 2.5 mg/mL, so a 2 mg dose is about 16 units on a U-100 syringe.

Cortagen dosage calculator

The calculator below is pre-filled with Cortagen’s commonly cited vial size and dose. Adjust the vial amount, bacteriostatic water, or dose to match your own vial — it will show the exact insulin-syringe units to draw, the concentration, and how many doses the vial holds.

mg
mL
How much water you add is your choice — it doesn’t change your dose, only how many units you draw. Common:
Draw to
80 units
= 0.8 mL on a 1 mL (100 units) syringe
80 units0100
Concentration
2.5 mg/mL
Per unit
25 mcg/u
Doses per vial
2 × 2000mcg
Volume
0.8 mL
📋 In plain English

Add 2 mL of bacteriostatic water to your 5 mg vial. That gives you about 2 doses of 2000 mcg. For each dose, draw 80 units into a 100-unit insulin syringe.

See the full Cortagen dosing chart (units for every dose & water amount), or open the full peptide calculator →

Cautions

  • Not FDA-approved; a research chemical outside its origin countries.
  • Human evidence is limited and largely non-Western.
  • Long-term safety is not established.
  • Source purity and identity vary.

Cortagen FAQ

What is Cortagen?

A short peptide bioregulator from Russian research, studied for effects on brain cortex tissue and neural function.

How does Cortagen work?

Proposed to act as a tissue-specific peptide bioregulator for neural tissue. Reported to influence nerve regeneration in animal studies. Suggested to modulate gene expression relevant to brain cells. Described as supporting antioxidant and neurotrophic processes.

What is Cortagen used for?

Peripheral nerve recovery in animal research; Neuroprotection studies; Cognitive and neural function research; Recovery after neural injury (preclinical).

What is a typical Cortagen dose?

~2-4 mg per day, Once daily over short courses in reported use, Intramuscular injection (research). This is a commonly cited figure for context only, not medical advice.

How do you reconstitute Cortagen?

Commonly a 5 mg vial; 5 mg in 2 mL gives 2.5 mg/mL, so a 2 mg dose is about 16 units on a U-100 syringe.

What is the half-life of Cortagen?

Very short; rapidly cleared.

Related cognitive & neuroprotective peptides

⚠️ Educational reference only — not medical advice. These compounds are largely research chemicals not approved for human use in most countries. Nothing here is a recommendation to obtain or administer any substance. Consult a qualified clinician.