Per vial, USD
| Fill weight | 100+ | 1,000+ | 2,500+ | Order |
|---|---|---|---|---|
| 5 mg | Quoted to order | Ask for a price → | ||
| 10 mg | $29.75 | $24.99 | $24.40 | |
| 20 mg | $58.50 | $49.14 | $47.97 | |
5 mg is quoted rather than listed. Every other fill weight above is the published sheet. Ask and a person sends the figure for that weight, usually the same business day.
Ordering at volume
Tesamorelin is held deep in California as a high-volume line, so a quote on it becomes a ship date in days rather than weeks, and quantities at the two upper breaks are normally covered out of vialed stock. Depth matters more here than on the small amides, because this is not a quick molecule to make from scratch. A 44-residue chain is a long build, and a run started from nothing takes far longer than a quote against stock.
Fill weight moves the per-vial number more sharply on this line than on almost anything else in the section, because a milligram of tesamorelin is a milligram of a large peptide. Vialing, the seal and the paperwork cost the same whether the vial holds 5 mg or 20 mg, so those fixed costs spread thinly across a large fill — but never thinly enough to make the 20 mg vial cheap per vial. Buyers working to a fixed total in milligrams take the large fill; buyers working to a fixed vial count take the small one.
Vial count is what shows up on the freight side. Ten thousand milligrams of material arrives as two thousand vials at the small fill or five hundred at the large one, which is a different carton count, a different shipping weight and a different footprint on the dock. Order all three fills together if you want them; they invoice as three lines, each reaching its own break on its own quantity. If lot uniformity matters to your incoming check, ask for one lot at quote, because a mixed-fill order does not guarantee it.
Specification
- Compound
- Tesamorelin
- CAS number
- 901758-09-6
- Formula
- C₂₂₁H₃₆₆N₇₂O₆₇S
- Molecular weight
- ~5,135.9 g/mol
- PubChem CID
- 16132314
- Form
- Lyophilized powder, sealed vial
- Fill weights
- 5 mg · 10 mg · 20 mg
- Stock depth
- High-volume staples — Held deepest, quoted same day, shortest lead time.
- Intended use
- Laboratory research only. Not for human or veterinary use.
What the material is
Tesamorelin is the full 44-residue sequence of human growth hormone-releasing hormone with one modification: a trans-3-hexenoyl group carried on the N-terminal tyrosine. That acyl cap is the only structural departure from the native sequence, and it is what separates the material from GHRH(1-44) itself. At roughly 5,135.9 g/mol it is a large peptide by the standards of this section, several times the mass of the short synthetic amides listed beside it and half as heavy again as the 29-residue analogues.
The material presents as an off-white lyophilized cake in sealed glass, closed over a rubber plug with a crimped aluminium cap. It sits as a dry disc against the base of the vial, and at the 20 mg fill it is visibly thicker than at 5 mg, which is arithmetic, not a difference in quality. A cake that has slumped, browned or gone glassy has taken up moisture; set that vial aside rather than opening it.
Storage and reconstitution
Sealed vials belong at −20 °C, dark and dry. The lyophilized form keeps well at that temperature and tolerates the warmer hours a courier adds to the journey, as long as the seal is unbroken and the cake is intact. Humidity is the real hazard, not a few hours of warmth: let a vial reach room temperature before you break the seal, or condensation lands on the cake instead of the glass.
The cake goes into sterile water, or into whatever buffer the assay calls for, without much persuasion, and fastest of all when the solvent runs down the inside of the vial rather than onto the disc itself. Swirled, not shaken — a chain this long foams, and foam is where aggregation starts. Solutions go back to 2–8 °C in the dark and have a short working life; split them into aliquots first if they will be drawn on twice, since freeze-thaw cycles cost more material than shelf time does.
Buying questions
Which tesamorelin fill weight makes sense for a first wholesale order?
The 10 mg fill, unless you already know your annual total. It sits in the middle of the ladder, so it is the least committal way to find out how the material handles before you put a full break quantity behind one fill. The ordering walkthrough has the paperwork side of a first order.
How long does a tesamorelin order take to leave the warehouse?
Days, not weeks, on stocked quantities. This is one of the most deeply held lines in the catalog, and orders inside the published breaks generally ship from vialed inventory. A firm date goes on the written quote rather than being promised on a web page.
Is tesamorelin dearer per vial than the shorter secretagogues at the same fill weight?
Yes, by a wide margin. The molecule is roughly seven times the mass of ipamorelin, so a 10 mg vial of it holds far more material than a 10 mg vial of a pentapeptide. Comparing two suppliers on fill weight alone hides that difference entirely. Pricing shows how each break is applied per line.
Do the three tesamorelin fills come from the same lot?
Not necessarily. Each fill weight may be vialed as its own run, so a mixed order can carry more than one lot number. Say at quote if you need them matched, and use COA requests for the certificate, which names the lot actually shipped.
