Which should you choose? Here's what you need to know.
Cartalax and Cortagen are both bioregulator peptides, but they work differently. Cartalax is a bioregulator peptide used in research. Cortagen is a bioregulator peptide used in research. Compare vendor pricing and availability below.
On 17 Sep 2026 Peptide Compare tracked 22 vendors selling Cartalax, cheapest in stock $1.75 per mg at Eros Peptides, and 8 selling Cortagen, cheapest $3.00 per mg at Eros Peptides.
Cartalax is a bioregulator peptide used in research.
Cortagen is a bioregulator peptide used in research.
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options. Prices verified Sep 17, 2026.
Our top-rated vendor for each, based on trust scores, purity testing, and price.
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We re-check vendor prices continuously and score vendors on Finnrick blind-test results — samples bought anonymously and sent to a lab, not vendor claims. No vendor can pay to rank higher. See our full methodology.