Head to head
These two are frequently sold together in a single vial, which makes it easy to assume they carry the same regulatory status. They do not, and that gap matters more than any dosing comparison.
Tesamorelin is FDA-approved under the brand EGRIFTA SV for reduction of excess abdominal fat in adults with a specific HIV-associated condition. Ipamorelin has no such approval. It is a synthetic pentapeptide described in the pharmacology literature as a selective growth hormone secretagogue, based on animal and in vitro potency data.
A tesamorelin plus ipamorelin combination product exists on the market. No clinical or preclinical study of that specific combination was identified in the literature reviewed. Pairing an approved drug with an unapproved research peptide in one vial does not extend tesamorelin's approval to the mixture, and it does not give ipamorelin new evidence.
Ipamorelin's appeal in the literature is receptor selectivity at a potency similar to a reference peptide, which theoretically limits some side effects seen with older secretagogues. That is a mechanistic argument, not a substitute for the clinical trial data behind tesamorelin's approved indication.
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Growth hormone research
Tesamorelin the approved drug is a specific peptide sequence manufactured and dosed as Egrifta by its FDA-approved sponsor for a narrow HIV lipodystrophy indication. Reign Peptide's tesamorelin vials are labeled as a research chemical of the same peptide sequence sold for laboratory use, not the approved drug product, with no confirmed manufacturing or bioequivalence link to Egrifta.
Read the research →Growth hormone research
Ipamorelin refers to a specific five-amino-acid peptide sequence. Reign Peptide's product is a lyophilized research-chemical powder of this sequence labeled for laboratory use; it is not manufactured or regulated as a pharmaceutical product and has no approved clinical formulation for comparison.
Read the research →Reign Peptide · Business disclosure
Jorge Abreu is involved in Reign Peptide. Links to Reign are a business connection, not an independent endorsement. Reign lists these products for laboratory research, not human consumption.
Use the listing to check the labeled identity, amount and available batch documentation. A purity result alone does not verify sterility, clinical suitability or equivalence to a medicine used in a trial.
Names and sizes are product labels, not dosing recommendations. Confirm current details with the seller.