Compound dossier · evidence, sources, and tracked market
Peptide bioregulator Preclinical only 0 cited studies 8 tracked vendors
All 5 vendors carrying Cortagen with a Vendor Score of 80+, ordered by $/mg
Lowest $/mg of these 5
Lab-verifiable COAs
24 of 26 COAs open at Freedom DiagnosticsRing: share of COAs openable at the lab · numeral: Vendor Score
Third-party COAs
5 of 70 COAs open at Bioviridian / Chromate Labs
Third-party COAs
Third-party COAs, self-hosted
Third-party COAs
32 of 51 COAs open at Chromate Labs / Freedom Diagnostics
Third-party COAs
Third-party COAs, self-hosted
Tiers name what a vendor publishes, not a verdict on any product's purity or quality. Lab-verifiable COAs: certificates that open on the testing lab's own site (the seal's ring shows what share of them do). Third-party COAs: certificates attributed to a third-party lab, which may be hosted only on the vendor's site. Tiers follow the Vendor Score (90+ and 80–89), which is 87% COA evidence; the numeral in each seal is that score. Affiliate relationships never affect tiers, selection or order. How the Vendor Score works
A short peptide bioregulator studied in early research contexts around neural/cortical tissue.
Evidence brief
Cortagen is described in the literature as a synthetic tetrapeptide with the sequence Ala-Glu-Asp-Pro, obtained by directed synthesis based on the natural brain-cortex peptide preparation Cortexin.
Published dosing & study context → Reconstitution calculator →
first-party prices captured
Compare by exact vialThe small sealed glass container a compound ships in. size: 20mg (8 vendors)
Price includes the displayed code where available. Shipping and tax are extra. Unknown sizes or prices are excluded when those filters are set.
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Select up to four offers to compare side by side. Click a column heading to sort. Click again to reverse. Scroll sideways for more columns.
Tick up to four offers to compare side by side. Use Sort by to reorder. COA counts are each vendor's own library; batch match is not assumed.
| Select | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| NextGenPeps | CortagenCortagen | Vial / standard | 20 | $46.00 | $2.30 | out of stock | 85/100 | 78 indexedVendor library; batch match not assumed | Checked within 24 hoursPrice and stock were collected in the latest refresh.just now | View product ↗ | |
| Verified Peptides | Cortagen Peptide (20MG)Cortagen | Vial / standard | 20 | $55.00 | $2.75 | out of stock | 83/100 | 183 indexedVendor library; batch match not assumed | Checked within 24 hoursPrice and stock were collected in the latest refresh.just now | View product ↗ | |
| Core Peptides | Cortagen – 20MGCortagen | Vial / standard | 20 | $59.00 | $2.95 | in stock | 80/100 | 100 indexedVendor library; batch match not assumed | Checked within 24 hoursPrice and stock were collected in the latest refresh. | View product ↗ | |
| Atomix Research | Cortagen (20mg)Cortagen | Vial / standard | 20 | $54.99 | $2.75 | in stock | 81/100 | 70 indexedVendor library; batch match not assumed | Checked within 24 hoursPrice and stock were collected in the latest refresh. | View product ↗ | |
| Swiss Chems | Cortagen, 20mgCortagen | Vial / standard | 20 | $46.95 | $2.35 | in stock | 98/100 | 26 indexedVendor library; batch match not assumed | Checked within 24 hoursPrice and stock were collected in the latest refresh. | View product ↗ | |
| Atomik Labz | Cortagen 20mgCortagen | Vial / standard | 20 | $60.00 | $3.00 | in stock | 35/100 | 99 indexedVendor library; batch match not assumed | Checked within 24 hoursPrice and stock were collected in the latest refresh. | View product ↗ | |
| Bio Longevity Labs | Cortagen (20mg)Cortagen | Vial / standard | 20 | $69.97 | $3.50 | in stock | 80/100 | 250 indexedVendor library; batch match not assumed | Checked within 24 hoursPrice and stock were collected in the latest refresh. | View product ↗Affiliate link: pepmg may earn a commission. Affiliate status never affects ranking, price order or Vendor Scores. | |
| Crownwell Research | CortagenCortagen · Not in price comparison | Vial / standard | — | $62.00 | — | in stock | 35/100 | 13 indexedVendor library; batch match not assumed | Checked within 24 hoursPrice and stock were collected in the latest refresh. | View product ↗Affiliate link: pepmg may earn a commission. Affiliate status never affects ranking, price order or Vendor Scores. | |
| Orbitrex Peptide | Cortagen 20mgCortagen | Vial / standard | 20 | $59.99 | $3.00 | in stock | 85/100 | 51 indexedVendor library; batch match not assumed | Checked within 24 hoursPrice and stock were collected in the latest refresh. | View product ↗ | |
| Solution Peptides | Cortagen 20mgCortagen | Vial / standard | 20 | $60.00 | $3.00 | in stock | 35/100 | 164 indexedVendor library; batch match not assumed | Checked within 24 hoursPrice and stock were collected in the latest refresh. | View product ↗ | |
| PureRawz | Cortagen 20mgCortagen | Vial / standard | 20 | $54.57 | $2.73 | Last known: in stock | 72/100 | 100 indexedVendor library; batch match not assumed | Last known priceNot reconfirmed in the latest refresh. Stock is also last known.2d ago | View product ↗ |
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Cortagen is described in the literature as a synthetic tetrapeptide with the sequence Ala-Glu-Asp-Pro, obtained by directed synthesis based on the natural brain-cortex peptide preparation Cortexin.
Read the full review →Source-linked reference figures with the population and study context alongside each amount. Study arms are not a starting dose, titration schedule, or personal treatment plan. Label records refer to the named approved medicine, not vendor products.
10 mcg/kg for 10 days
rat · rats after transection and suturing of the sciatic nerve · preclinical animal study · Route reported: intramuscular
published per unit of bodyweight — pepmg reports it as published and does not convert it to an absolute amount
Read original source: PMID 11276314 ↗Research use only — this reports what an FDA label or a peer-reviewed study published, tied to its species and study context. It is not medical advice, not a recommendation to use, and no dose here is generated by pepmg. Any dosing decision is for a qualified professional. Animal-study amounts do not establish a human dose.
Reconstitution calculator → · Converts your entered quantities; it does not select a dose or establish suitability for use.
Prices for this compound vary widely between vendors; comparing $/mg avoids overpaying.
Always check each vendor's third-party Certificate of Analysis (COA) for identity and purity.
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