Research Use Only. Tesamorelin is sold as a chemical reagent for in-vitro laboratory research, not for human or veterinary use. It is not a drug, supplement, or compounded preparation. It must be handled by qualified professionals. Wholesale Peptide Supply is not a pharmacy or compounding facility under 503A or 503B.
Wholesale Tesamorelin — Bulk Research Supply
Available sizes
In-stock orders ship same day when paid by 1 pm PT, Mon–Fri. Overnight available.
Buy Tesamorelin wholesale and in bulk from a US-based research peptide supplier. Every lot is sourced in the USA and third-party tested, with the lab and method on each lot's certificate. Bulk Tesamorelin is quoted by dose and volume from a 3-kit (30-vial) order minimum, mix and match across doses and compounds; lower prices are earned at 10 kits and again at 100 kits in the order, mix and match.
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 3-kit (30-vial) order minimum, mix and match across doses and compounds; lower prices apply at 10 kits and at 1,000+ vials in the order. Contact us for larger or custom-volume quotes — answered the same day. Urgent? Text or call (714) 625-9215 — you’ll reach a real person in the United States, not a chatbot or an overseas call center.
Tesamorelin 10mg
WPSTSM10 · CAS 901758-09-6 · Secretagogue Peptides
- 1–9 kits
- $42.77/vial$38.49 paying by card
- 10–99 kits
- $34.21/vial$30.79 paying by card
- 100+ kits
- $27.37/vial$24.63 paying by card
10% off with card Every product, every volume band — taken off at checkout when you choose card.
Sold in kits of 10 vials · 3-kit order minimum, mix and match · price set by the total kits in your order (BAC water not counted)
Tesamorelin 20mg
WPSTSM20 · CAS 901758-09-6 · Secretagogue Peptides
- 1–9 kits
- $84.09/vial$75.69 paying by card
- 10–99 kits
- $67.28/vial$60.55 paying by card
- 100+ kits
- $53.82/vial$48.44 paying by card
10% off with card Every product, every volume band — taken off at checkout when you choose card.
Sold in kits of 10 vials · 3-kit order minimum, mix and match · price set by the total kits in your order (BAC water not counted)
Questions? Text a rep or call (714) 625-9215 — a real person in the US answers.
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 for identity, purity, and quantitation, with a per-lot COA included in every order.
Pricing is quoted in three bands set by the order's total kits — 1–9 kits, 10–99 kits and 100+ kits (1,000 vials) — from a 3-kit (30-vial) order minimum, mix and match across doses and compounds. Tesamorelin is frequently ordered alongside sermorelin and ipamorelin by labs running comparative somatotroph-axis work, and a single order can cover all three.
Certificates of Analysis
5 certificates are on file for Tesamorelin — open any one to read the full report.
| Lot / Lab | Dose | Tested | Purity | Certificate |
|---|---|---|---|---|
| WPS-TSM20-20260915-01pH Solutions LabHPLC-UV | 20mg | 2026-10-07 | 99% | |
| DPS-7815980Horizon AnalyticalUPLC/MS | 10mg | 2026-09-14 | 99.61%Endotoxin <0.05 EU/mL | |
| 100089-0958Optiq Health LabsRP-HPLC / LC-MS | 10mg | 2026-08-20 | — | |
| 100089-0959Optiq Health LabsRP-HPLC / LC-MS | 20mg | 2026-08-20 | — | |
| 100057-0617Optiq Health LabsRP-HPLC / LC-MS | 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, from a 3-kit (30-vial) order minimum, mix and match across doses and compounds.
- Is Tesamorelin third-party tested?
- Yes. Every lot of Tesamorelin is tested by an independent third-party laboratory, and a per-lot Certificate of Analysis documenting identity and purity is included with every order at no charge, issued in the name of Wholesale Peptide Supply. The most recent published lot, WPS-TSM20-20260915-01 (20mg), was tested by pH Solutions Lab on 7 October 2026 by HPLC-UV: purity 99%. Every lot on file is listed with its certificate on this page.
- 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 the same day. For anything urgent, text or call (714) 625-9215 to reach a real person in the US.
- Can I order Tesamorelin in bulk?
- Yes. Tesamorelin is available for bulk and wholesale orders, quoted by dose and volume, from a 3-kit (30-vial) order minimum, mix and match across doses and compounds, with lower prices at 10 kits and at 100 kits (1,000 vials) in the order. Submit the doses and quantities you need for a bulk quote.
- 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 third-party verification, and both count toward the 3-kit order minimum and toward the order's price bands.
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