- Purity
- >99%
- Dispatch
- Dispatched next business day with cold-chain delivery
- Cold chain
- Temperature-controlled packaging from lab to door
- Certificate
- Batch-specific Certificate of Analysis available on this page
Multi-vial Discount Available
Select Size
Ships Next Day
Orders confirmed before 12pm EST ship the same business day; orders after 12pm EST ship the next business day. Monday to Friday.
Quality Guaranteed
Every batch is HPLC-tested to >99% purity. Certificate of Analysis available on this page; MSDS available on request.
Verify Batch
Lot-level COA, Batch PP/TES/062026. Check the batch number printed on your vial against the certificate below, which reports the tests run on it.
What is Tesamorelin?
Tesamorelin is a chain of 44 amino acids. It is a copy of the whole natural human hormone that tells the pituitary gland to release growth hormone, with one extra piece of chemistry attached at the front end to stop the body breaking it down so quickly. Sermorelin and CJC-1295 are shorter versions of the same hormone, 29 links instead of 44. Tesamorelin has been tested in several trials in people.
Technical Specs
Labeled quantity is net peptide content, not gross salt weight.
Tesamorelin Research & Reference
What Tesamorelin does in published studies, and how to work with it in the laboratory, are covered in full on two dedicated pages rather than summarised here, so neither the evidence nor the handling detail is cut short.
Certificates of Analysis
Every batch is tested by an independent laboratory before release. The certificate covering this batch of Tesamorelin, and its safety data sheet, are below as PDFs, so the figures on this page can be checked against the source.
Frequently Asked Questions
Is Tesamorelin independently tested for purity?+−
Yes. Every batch of Tesamorelin is tested by an independent third-party laboratory using HPLC and MS-UPLC, confirming purity and mass identity before the batch is released. Pure Peptides does not test its own material.
Can I see the Certificate of Analysis before buying?+−
Yes. The Certificate of Analysis for the batch currently in stock can be viewed and downloaded directly on this page, before you place an order. Each certificate states the batch number, the measured purity, and the date of analysis, and can be verified independently with the issuing laboratory using the report number it carries.
What does "Research Use Only" mean?+−
It means Tesamorelin is supplied for in-vitro laboratory research and for no other purpose, and must not be administered to humans or animals. Tesamorelin's regulatory status differs from most compounds in this catalog: tesamorelin acetate is the active ingredient of a prescription medicine sold under another name. The material sold by Pure Peptides is a research-grade preparation, supplied strictly for in vitro and non-clinical laboratory research; it is not that medicine and holds no marketing authorisation. As a compound in the growth-hormone-releasing peptide and IGF-1 analog class, Tesamorelin appears in section S2 of the WADA Prohibited List for competitive athletes, a separate consideration from its legal research status.
How is Tesamorelin shipped and stored?+−
Tesamorelin ships from US stock with cold-chain packaging and full tracking; orders placed before noon EST on business days are typically dispatched the same business day. On arrival, store the lyophilized powder at -20°C or below, dry and protected from light.
From the blog
Background and context on this compound.
Related Compounds
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>99%