Ipamorelin vs Tesamorelin
Ipamorelin and Tesamorelin are two of the most frequently compared growth-hormone-axis research peptides, but they act on different receptors — Ipamorelin is a GHRP-class secretagogue and Tesamorelin is a GHRH analog. They are also studied together in combination research protocols. Here is how they differ as research compounds, and how their cost per milligram compares.
Ipamorelin is a selective growth-hormone-releasing pentapeptide (a GHRP) that acts on the ghrelin/GH-secretagogue receptor, valued in research for its selectivity among the GHRP class.
Tesamorelin is a stabilized analog of growth-hormone-releasing hormone (GHRH) that acts on the GHRH receptor, studied as a reference compound in the GHRH-analog class.
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- Mechanistic class: Ipamorelin is a GHRP-class secretagogue (ghrelin-receptor); Tesamorelin is a GHRH analog (GHRH-receptor) — different receptors on the same axis.
- Structure: Ipamorelin is a short synthetic pentapeptide; Tesamorelin is a longer GHRH(1-44) analog stabilized against degradation.
- Research context: Ipamorelin is studied for GHRP selectivity; Tesamorelin as a GHRH-analog reference; the two receptors are sometimes studied in combination.
- Both ship as lyophilized powder in vials and are compared here by scanned cost per milligram.
Ipamorelin vs Tesamorelin — FAQ
For laboratory research use only. Not for human or veterinary use, diagnosis, treatment, or consumption.