We track Cortagen (20mg) pricing across every supplier in the CheckALab rankings. Prices below are indicative sample figures for comparison only — always confirm on the supplier's own site. Research use only.
£45
Lowest tracked
£64
Median price
20mg
Typical vial
14
Suppliers compared
| # | Supplier | Price | Per mg | Stock | Delivery | Verified |
|---|---|---|---|---|---|---|
| 1 | Kensington Labskensingtonlabs.co.uk | £45Lowest | £2.25 | Pre-order | Free UK tracked over £100 | ✓ ID verified |
| 2 | Zenith Bio Labszenithbiolabs.com | £51 | £2.55 | In stock | £4.95 UK tracked | Not verified |
| 3 | Biovanta Research (IE)biovantaresearch.irish | £55 | £2.75 | Low stock | Free UK tracked over £100 | ✓ ID verified |
| 4 | Biovanta Researchbiovantaresearch.com | £56 | £2.8 | In stock | £4.95 UK tracked | ✓ ID verified |
| 5 | Luminex Research Centerluminexresearchcenter.com | £56 | £2.8 | Pre-order | Free UK tracked over £100 | ✓ ID verified |
| 6 | Rituals Genomicsritualsgenomics.com | £59 | £2.95 | In stock | £4.95 UK tracked | ✓ ID verified |
| 7 | Planet Bio Labsplanetbiolabs.com | £60 | £3 | In stock | £4.95 UK tracked | Not verified |
| 8 | Cannox Labscannoxlabs.com | £60 | £3 | In stock | £4.95 UK tracked | ✓ ID verified |
| 9 | Rexha Researchrexharesearch.com | £61 | £3.05 | Pre-order | Free UK tracked over £100 | ✓ ID verified |
| 10 | Squire Bio Centersquirebiocenter.com | £65 | £3.25 | Low stock | Free UK tracked over £100 | ✓ ID verified |
| 11 | Bioluxe Analyticsbioluxeanalytics.com | £66 | £3.3 | In stock | £4.95 UK tracked | Not verified |
| 12 | Molecushift Institutemolecushiftinstitute.com | £68 | £3.4 | Pre-order | Free UK tracked over £100 | Not verified |
| 13 | Matrix Researchmatrixresearch.co | £68 | £3.4 | In stock | £4.95 UK tracked | Not verified |
| 14 | Pure Peak Peptidespurepeakpeptides.com | £74 | £3.7 | In stock | £4.95 UK tracked | ✓ ID verified |
Cortagen is a tetrapeptide bioregulator described in studies of cortical and peripheral nerve tissue recovery, again largely from the Khavinson research programme.
It is stocked widely because the bioregulator series sells as a set, not because any individual member has been independently validated at scale.
Three things move the Cortagen price you see in the table above: how much active material a 20mg vial actually contains once excipients and salt content are accounted for, whether the supplier funds independent analysis on every batch rather than once a year, and how the vial is packed and shipped. Buyers often purchase the series as a bundle, where per-component certificates are least likely to be provided. Compare price per milligram rather than price per vial, and discount any listing whose certificate is undated, unsigned, or tied to a different batch number than the one on the label.
Every supplier in this table is scored independently, and no vendor can pay to appear, move up, or have a poor result removed. We build a score out of ten from four weighted inputs: published third-party analytical documentation and how completely it covers the catalogue, identity verification of the company behind the website, the volume and consistency of moderated customer reviews collected through CheckALab, and operational signals such as dispatch reliability, stock accuracy and complaint handling.
For Cortagen specifically we weight the documentation input according to how the compound fails: buyers often purchase the series as a bundle, where per-component certificates are least likely to be provided. Suppliers publishing analysis that addresses that point score higher than suppliers publishing a headline purity figure alone. Reviews only count once they clear moderation, and no single review can move a score, so a burst of unusually positive or negative feedback cannot reposition a supplier. Scores are recalculated as new certificates, reviews and delivery data arrive.
The lowest headline price is rarely the best value. Compare price per mg rather than price per vial, check whether a batch-matched certificate of analysis is published, and factor in delivery. A cheap vial with no third-party testing behind it is not a saving.
Kensington Labs currently sits at the top of this table at £45 for a 20mg vial, and holds a CheckALab score of 9.43/10.
Tracked prices run from about £45 to £64 for a 20mg vial, depending on supplier, batch and purity documentation.
No. Prioritise suppliers with published third-party certificates and ID verification, then compare price per mg between those.
They are indicative sample figures used for comparison on this demonstration site. Always check the supplier's own listing before ordering.
For laboratory research use only. Not for human or veterinary use. Nothing on this page is medical advice.