PT-141 vs Tesamorelin
PT-141 and Tesamorelin come from different research areas and are studied in largely separate models — researchers usually compare them when scoping a broader protocol.
✓ both US-made · third-party tested · batch COA on every order
Last updated August 25, 2026
How do PT-141 and Tesamorelin differ?
PT-141 (Synthetic cyclic heptapeptide melanocortin agonist) is catalogued under skin & glow research; Tesamorelin (Synthetic GHRH analog · secretagogue research) is catalogued under weight & metabolic research. Verve lists 5 reported research applications for PT-141 and 4 for Tesamorelin. Both are made in the United States, screened by HPLC to a 99%+ purity standard, and shipped with a batch-level certificate of analysis.
| field | PT-141 | Tesamorelin |
|---|---|---|
| compound class | Synthetic cyclic heptapeptide melanocortin agonist | Synthetic GHRH analog · secretagogue research |
| research area | skin & glow | weight & metabolic |
| reported research applications | 5 listed | 4 listed |
| supplied as | single compound | single compound |
| catalog sizes | 10mg | 20mg |
| purity standard | 99%+ by HPLC | 99%+ by HPLC |
| manufactured | United States | United States |
| batch COA | published per lot | published per lot |
| endotoxin-tested option | not offered | available |
| co-formulated together in | not co-formulated | not co-formulated |
| price from | $50.49 | $214.49 |
| availability | out of stock | in stock |
Prices and stock read live from the catalog. Both compounds are supplied strictly as reference materials for in-vitro laboratory research.
What is PT-141 and what is Tesamorelin?
PT-141 is classified as Synthetic cyclic heptapeptide melanocortin agonist; Tesamorelin as Synthetic GHRH analog · secretagogue research. Both profiles below cover scientific identity only — what the molecule is and which laboratory models it appears in. Verve supplies both strictly as in-vitro reference materials, and neither profile describes human or veterinary use.
PT-141
Synthetic cyclic heptapeptide melanocortin agonist
PT-141, also known as bremelanotide, is a synthetic cyclic heptapeptide analog of the melanocortin family, structurally related to alpha-melanocyte-stimulating hormone and to the earlier research analog Melanotan II. Verve supplies it as a high-purity research compound for laboratory melanocortin-receptor research.
full PT-141 profile →Tesamorelin
Synthetic GHRH analog · secretagogue research
Tesamorelin is a synthetic 44-amino-acid peptide, a stabilized analog of growth-hormone-releasing hormone (GHRH). Verve supplies it as a high-purity research compound for endocrine and secretagogue research.
full Tesamorelin profile →Which research models is each compound studied in?
PT-141 sits in skin & glow research and Tesamorelin in weight & metabolic research, so their listed models largely do not intersect. The table lists 5 reported research applications for PT-141 and 4 for Tesamorelin. Rows are per compound, not equivalences.
| PT-141 — reported research applications | Tesamorelin — reported research applications |
|---|---|
| Melanocortin-receptor (MC1R/MC3R/MC4R) binding research | GHRH-receptor and secretagogue research |
| cAMP and G-protein-coupled receptor signaling assays | Endocrine-signaling research models |
| Receptor-selectivity and structure–activity profiling | Peptide pharmacokinetics and stability research |
| MC1R and melanogenesis research models in cell culture | Metabolic research models |
| Cyclic-peptide stability and conformation research | — |
Research contexts only. Both compounds are supplied for laboratory research use only, and no entry above describes an effect in humans or animals.
What sizes and prices does verve list for PT-141 and Tesamorelin?
PT-141 is listed from $50.49 and Tesamorelin from $214.49. The table below is every catalog size verve currently lists for the two compounds, at single-vial prices before the automatic multi-compound discount. Sizes describe the vial format supplied to the laboratory, nothing more.
| compound | size listed | price | availability |
|---|---|---|---|
| PT-141 | 10mg | $50.49 | out of stock |
| Tesamorelin | 20mg | $214.49 | in stock |
Any 2 different compounds take 20% off, any 3 take 30% — applied automatically in the cart, no code. Orders placed Monday–Friday ship by 2pm CT, free over $100.
shop the compounds →Frequently asked questions about PT-141 and Tesamorelin
What is PT-141?
PT-141 (bremelanotide) is a synthetic cyclic heptapeptide melanocortin analog structurally related to alpha-MSH. Verve supplies it as a research compound for laboratory use only, not for human or veterinary use.
What is PT-141 studied for in research?
It is used as a reference agonist in melanocortin-receptor research, including MC1R, MC3R, and MC4R binding studies, cAMP signaling assays, and receptor-selectivity profiling. Verve makes no health claims.
What is Tesamorelin?
Tesamorelin is a synthetic 44-amino-acid analog of growth-hormone-releasing hormone (GHRH). Verve supplies it as a research compound for laboratory use only, not for human or veterinary use.
What is Tesamorelin studied for in research?
It is used as a GHRH-receptor agonist model in secretagogue and endocrine-signaling research. Verve makes no human- or veterinary-use claims.
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verve products are sold for laboratory research and development purposes only and are not intended for human or veterinary use of any kind. statements on this site have not been evaluated by the FDA.