Research Use Only. Tesamorelin is sold as a chemical reagent for in-vitro laboratory research. It is not a drug, supplement, or compounded preparation, and it is not for human or veterinary use. Wholesale Peptide Supply is not a pharmacy or compounding facility under 503A or 503B.
Wholesale Tesamorelin — Bulk Research Supply
Buy Tesamorelin wholesale and in bulk from a US-based research peptide supplier. Every lot is sourced in the USA and third-party third-party tested via HPLC/MS. Bulk Tesamorelin is quoted by dose and volume from a 100-vial mix-and-match minimum; volume pricing is earned per compound at 100 kits.
Tesamorelin is a synthetic analog of growth hormone releasing hormone built on the full 44-residue GHRH sequence, carrying an N-terminal trans-3-hexenoyl modification that resists enzymatic cleavage and extends the window of GHRH receptor engagement relative to native GHRH.
Wholesale Catalog
Available Doses
Published per-vial wholesale pricing for Tesamorelin. Sold in kits of 10 vials with a 100-vial order minimum you can mix and match across compounds; volume pricing applies at 1,000+ vials. Contact us for larger or custom-volume quotes — typically answered within 10 minutes during business hours.
Tesamorelin 10mg
WPSTSM10 · CAS 901758-09-6 · Growth Hormone
$34.21/vial · under 100 kits · $27.37/vial · 100+ kits of this item
Sold in kits of 10 vials · 100-vial order minimum (mix & match across compounds) · 100+ kits of this item unlocks the lower price
Tesamorelin 20mg
WPSTSM20 · CAS 901758-09-6 · Growth Hormone
$67.28/vial · under 100 kits · $53.82/vial · 100+ kits of this item
Sold in kits of 10 vials · 100-vial order minimum (mix & match across compounds) · 100+ kits of this item unlocks the lower price
Overview
Tesamorelin is a synthetic analog of growth hormone releasing hormone built on the full 44-residue GHRH sequence, carrying an N-terminal trans-3-hexenoyl modification that resists enzymatic cleavage and extends the window of GHRH receptor engagement relative to native GHRH.
History
Developed as a stabilized full-length GHRH analog. The N-terminal acylation blocks the rapid dipeptide cleavage that limits both native GHRH and the shorter sermorelin (1-29) fragment, which is what distinguishes it from the earlier GHRH-class compounds.
Structure and mechanism
Tesamorelin is a synthetic analog of growth hormone releasing hormone built on the full 44-residue GHRH sequence, modified at the N-terminus with a trans-3-hexenoyl group. That acylation is the entire point of the molecule: unmodified GHRH is cleaved rapidly at the N-terminal dipeptide, and the hexenoyl cap blocks that cleavage, giving the analog a substantially longer window of receptor engagement than native GHRH or the shorter sermorelin fragment.
In preclinical laboratory models tesamorelin is studied as a receptor-level probe of the somatotroph axis — GHRH receptor binding, downstream cAMP signaling, and the pulsatile release patterns that distinguish a stabilized full-length analog from a truncated one. Its molecular weight (~5,135.9 g/mol) and formula (C₂₂₁H₃₆₆N₇₂O₆₇S) place it well above sermorelin's 3,357.9 g/mol, reflecting the additional 15 residues plus the acyl group.
Reconstitution and handling (research use)
Wholesale tesamorelin ships as a lyophilized powder. For in-vitro laboratory work it is reconstituted with bacteriostatic or sterile water directed against the vial wall rather than onto the cake, then swirled — not vortexed — since peptides in this size class are prone to shear and foaming at the air-liquid interface.
Lyophilized material is generally held at -20°C and protected from light. Reconstituted solution is refrigerated at 2–8°C and used inside the window the protocol defines; aliquoting before freezing avoids repeated freeze-thaw cycles on a 5 kDa peptide. These notes describe general laboratory handling of a chemical reagent only — not human or veterinary use.
Wholesale sourcing notes
Tesamorelin is stocked wholesale in 10 mg and 20 mg presentations. Every lot is US-sourced and independently verified by a third-party laboratory via HPLC/MS for identity, purity, and quantitation, with a per-lot COA available as a paid add-on.
Pricing is quoted by volume across the 100, 250, 500, and 1,000-vial bands under a 100-vial mix-and-match minimum. Tesamorelin is frequently ordered alongside sermorelin and ipamorelin by labs running comparative somatotroph-axis work, and mix-and-match lets a single order cover all three.
Certificates of Analysis
Every lot of Tesamorelin is tested by an independent third-party laboratory using HPLC/MS. 3 certificates are on file below — open any one to read the full report.
| Lot | Dose | Tested | Certificate |
|---|---|---|---|
| 100089-0958 | 10mg | 2026-08-20 | |
| 100089-0959 | 20mg | 2026-08-20 | |
| 100057-0617 | 10mg | 2026-08-05 |
Key Areas of Research
- GHRH receptor binding and activation
- Somatotroph axis signaling
- Enzymatic stability of acylated GHRH analogs
- Comparative studies vs. sermorelin and modified GRF (1-29)
References
- Falutz J. et al. (2010). JAIDS 53(3):311–322.
- Guillemin R. et al. (1982). Growth hormone-releasing factor from a human pancreatic tumor. Science, 218(4572):585–587.
Tesamorelin — Frequently Asked Questions
- What is Tesamorelin?
- Tesamorelin is a synthetic analog of growth hormone releasing hormone built on the full 44-residue GHRH sequence, carrying an N-terminal trans-3-hexenoyl modification that resists enzymatic cleavage and extends the window of GHRH receptor engagement relative to native GHRH.
- What is the CAS number for Tesamorelin?
- The CAS number for Tesamorelin is 901758-09-6. Its molecular formula is C₂₂₁H₃₆₆N₇₂O₆₇S (MW ~5,135.9 g/mol).
- What doses of Tesamorelin are available wholesale?
- Wholesale Peptide Supply stocks Tesamorelin in 10mg, 20mg. Wholesale pricing is provided by quote based on order volume across 100–1,000 vials.
- Is Tesamorelin third-party tested?
- Yes. Every lot of Tesamorelin is tested by an independent third-party laboratory using HPLC/MS, and a per-lot Certificate of Analysis documenting identity and purity is available as a paid add-on.
- Is Tesamorelin for human use?
- No. Tesamorelin is sold strictly as a chemical reagent for in-vitro laboratory research and is not for human or veterinary use. Wholesale Peptide Supply is not a pharmacy or compounding facility.
- How do I get wholesale pricing for Tesamorelin?
- Request a quote through our contact form or open a wholesale account. An account manager replies with volume pricing and lead times, typically within 10 minutes during business hours.
- Can I order Tesamorelin in bulk?
- Yes. Tesamorelin is available for bulk and wholesale orders, quoted by dose and volume, with the lower price earned per compound at 100 kits (1,000 vials). Submit the doses and quantities you need for a bulk quote; all material is sourced in the USA and third-party HPLC/MS tested.
- How does tesamorelin differ from sermorelin?
- Both target the GHRH receptor, but they are different molecules. Sermorelin is GHRH (1-29) — the shortest fragment that retains full receptor activity, and it degrades quickly. Tesamorelin is built on the full-length GHRH sequence with an N-terminal trans-3-hexenoyl modification that resists enzymatic cleavage, giving a longer window of receptor engagement. They are not interchangeable in laboratory models.
- What doses of tesamorelin are stocked wholesale?
- Tesamorelin is stocked in 10 mg and 20 mg vials. Both presentations carry the same CAS number (901758-09-6) and per-lot HPLC/MS verification, and both count toward the 100-vial mix-and-match order minimum.
Research Use Only
All products are intended solely for laboratory research purposes and are not for human or animal consumption. Must be handled by qualified professionals.
Related Compounds
Growth Hormone
Ipamorelin
Ipamorelin is a synthetic pentapeptide and selective secretagogue-type agonist with minimal off-target pathway interference, used to study endocrine signaling and somatotroph axis modulation.
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CJC-1295 w/DAC
CJC-1295 with DAC is a modified GHRH analog with prolonged half-life through albumin binding, enabling sustained somatotroph axis activation in experimental models.
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CJC/IPA No DAC Blend
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IGF-LR3
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Thymosin Alpha 1
Thymosin Alpha 1 functions as a potent immunomodulator influencing signaling dynamics, cytokine expression, and immune pathway homeostasis.
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CJC-1295 (no DAC)
CJC-1295 without DAC — also called modified GRF (1-29) — is a GHRH analog carrying four amino acid substitutions that resist enzymatic cleavage, without the drug affinity complex that extends the DAC variant's half-life.
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GHRP-2 Acetate
GHRP-2 (pralmorelin) is a synthetic hexapeptide growth hormone secretagogue with the sequence D-Ala-D-2Nal-Ala-Trp-D-Phe-Lys-NH₂, studied as a ghrelin receptor agonist in laboratory models.
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GHRP-6 Acetate
GHRP-6 is a synthetic hexapeptide growth hormone secretagogue with the sequence His-D-Trp-Ala-Trp-D-Phe-Lys-NH₂. It was the first of the GHRP series to be widely characterized and remains a common reference compound in secretagogue research.
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