Growth-hormoneIn stock
Tesamorelin5 mg
Stabilized GHRH analog (GRF 1-44).
Free US shipping over $120COA in every boxLot-traced
View Certificate of AnalysisFor laboratory and in-vitro research use only. Not a food, drug, supplement, or cosmetic, and not for human or veterinary use.
— Specifications
Identity & analytics
Every lot ships with a Certificate of Analysis bearing HPLC purity, synthesis date, and retention time.
- CAS number
- 218949-48-5
- Molecular weight
- 5135.90 g/mol
- Amino-acid chain
- 44 residues
- HPLC purity
- 99.0%
- Category
- Growth-hormone
- Format
- Lyophilized powder
— Verification
Verified three ways
- 01
In-house HPLC
Reverse-phase chromatography on every batch — retention time, peak area, and impurity profile.
- 02
Independent confirmation
Re-run by an accredited third-party laboratory in Houston. Identity confirmed by mass-spectrometry.
- 03
Public COA index
Every peptide's Certificate of Analysis is published to veritaspeptideslab.com/lab-reports the same day the order ships.
Certificate of Analysis
Tesamorelin
- HPLC purity
- 99.0%
- Method
- RP-HPLC, 214 nm
- Identity
- ESI-MS confirmed
- Net peptide
- 83.5%
- Counter-ion
- Acetate
- Water
- 4.1%
- Endotoxin
- <0.5 EU/mg
- Storage
- -20°C, desiccated
- Synthesis date
- Aug 05, 2026
- Mass-spec
- Confirmed
— FAQ
Tesamorelin questions, answered
- 01
What is tesamorelin?
Tesamorelin is a synthetic analog of full-length human growth-hormone-releasing hormone — GRF (1-44) — bearing a trans-3-hexenoic acid group on its N-terminus that markedly improves stability (CAS 218949-48-5). It is supplied for laboratory research use only.
See related compounds in the growth-hormone category.
- 02
Should I choose tesamorelin or sermorelin for GHRH research?
They answer different questions: tesamorelin is the stabilized full-length GHRH (1-44) analog, while sermorelin is the shorter GRF (1-29) fragment. Protocols focused on the native full-length sequence and degradation resistance generally reach for tesamorelin.
- 03
How is tesamorelin stored and reconstituted?
Keep sealed vials refrigerated (2–8 °C), or at −20 °C for long-term storage, and reconstitute with bacteriostatic water. The Veritas Peptides Reconstitution Calculator can help with retrieving exact volumes. Refrigerate the reconstituted solution; see stability data for in-use windows. Additional information may be found through our dedicated Peptide Storage Blog
- 04
How is tesamorelin purity verified?
Every tesamorelin lot is assayed in-house by reverse-phase HPLC and independently confirmed by mass spectrometry at an accredited laboratory; recent lots have assayed at ~99.0%. Certificates are published by batch number in the COA index.
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