DOSAGE INDEX / SINGLE
Cortagen
Research, reported schedules and supply planning.
Evaluate Cortagen tissue-culture and mouse-heart research while distinguishing Cortexin identity, molecular signals and unverified clinical claims.
Source: PeptideDosages.com. Independently written summaries of reported protocols, not validated treatment recommendations. Reviewed for transcription on September 21, 2026.
Research Protocol & Dosage
Source-reported examples · not treatment recommendations
- Amount
- 1–2 mg per day
- Frequency
- Once daily
- Cycle / observation period
- 4 weeks; source also mentions 8 weeks
- Route / research model
- Subcutaneous
Titration & progression
A dose range is not a titration schedule. No independently verified stepwise escalation has been established for this source-reported regimen.
Supply & Planning
Compare vial strengths here. A different vial size changes the available material, not the biological dose.
Diluent & formulation
Diluent compatibility is formulation-specific. A verified manufacturer instruction is still needed before bacteriostatic water or another diluent can be listed as suitable for this research material.
Vial comparison
No single complete schedule is resolved for this entry. Enter a documented total to compare strengths; the calculator does not select a regimen.
| Vial strength | Vials needed |
|---|---|
| 20 mg | Enter a total |
Enter a positive material total.
Material minimum only: round total material ÷ vial content up to a whole vial. Actual supply may be higher because of single-use packaging, discard dates, dead space or losses. No validated multi-use storage period is assumed.
Reported Research Results
Selected observations from the cited research. Each finding retains its study population, formulation and limitations.
- Cortagen is identified as the synthetic tetrapeptide Ala-Glu-Asp-Pro in a primary mouse study. Its name and origin should not be confused with Cortexin, the natural peptide preparation discussed in that paper's background. A defined synthetic sequence and a preparation containing multiple peptides are different research materials. [1]
- The 2004 study examined cardiac transcripts in six-month-old female CBA mice after a short Cortagen course. It reported expression changes matching 110 known genes. This was a molecular screen of mouse heart tissue. It was not a memory test, a nerve-repair trial or evidence that every changed gene represented an improvement. [1]
- The microarray abstract mentions earlier human peripheral-nerve observations in its background. The experiment reported in that paper is nevertheless the mouse-heart study. The background sentence alone does not provide the clinical design, comparator or outcome data needed to assess the earlier human claim. [1]
Sourcing & Vendor Information
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Sources & Further Reading
Medical publications and supporting literature from the corresponding protocol bibliographies, combined across vial strengths. Supplier and commercial catalog references are excluded. Duplicate destinations appear once. Inclusion does not mean that a paper validates the reported dose, or that an ingredient study tests the finished blend.
Bibliography checked September 22, 2026: 12 entries mapped from 1 source page. Medical and supporting references are retained below; supplier entries are excluded.
- Original Cortagen study
- PubMedFurther reading · Listed in reference bibliography.
- PubMedFurther reading · Listed in reference bibliography.
- PubMed (Biogerontology)Further reading · Listed in reference bibliography.
- Bentham Open (Open Neuropsychopharmacology Journal)Further reading · Listed in reference bibliography.
- MDPI (Molecules)Further reading · Listed in reference bibliography.
- Springer (Bulletin of Experimental Biology and Medicine)Further reading · Listed in reference bibliography.
- MedlinePlusGeneral guidance · Listed in reference bibliography.
- CDC (Subcut Injection PDF)General guidance · Listed in reference bibliography.
- MDPI (International Journal of Molecular Sciences)Further reading · Listed in reference bibliography.
- WikipediaFurther reading · Listed in reference bibliography.
Reported schedule reference: PeptideDosages.com. Research findings are summarized independently from the listed sources.