Blog
Sermorelin & Tesamorelin — Research Comparison
Published May 5, 2026
Both sermorelin and tesamorelin are GHRH (growth hormone releasing hormone) analogues. This article compares their structure and stability for UK research.
Sermorelin
29-amino-acid GHRH fragment.
Tesamorelin
Stabilised GHRH analogue with a trans-3-hexenoyl modification at the N-terminus, giving longer half-life.