High-purity research peptides & reference materials
Vestrand Bioscience supplies a broad catalog of high-purity peptides and laboratory reference materials for research use — every compound backed by a per-lot certificate of analysis, packaged for stability, and shipped discreetly.
For laboratory research use only. Not for human or veterinary use.
A selection of compounds and reference materials from our catalog. Follow any card through to its full specification and per-lot certificate of analysis.
Peptide
A short synthetic peptide corresponding to a tail-end fragment of human growth hormone, with one extra building block added at the front.
Laboratory supply
Sterile, nonpyrogenic water with benzyl alcohol added as a bacteriostatic preservative. A prepared reagent, not a compound, and unusually stored at room temperature.
Peptide
A synthetic peptide of fifteen building blocks (a pentadecapeptide), based on a partial sequence of a protein first identified in gastric juice.
Peptide blend
A blend of two peptides — BPC-157 and TB-500 — supplied together. A mixture, not a single substance, with no identity of its own.
Peptide
A growth-hormone-releasing factor analogue of twenty-nine building blocks, also known as Modified GRF (1-29). Easily confused with the closely related sermorelin.
Peptide
A larger peptide of thirty-seven building blocks, in the amylin-analogue class, carrying a fatty-acid tail attached to its chain.
Peptide
A synthetic tetrapeptide of just four building blocks, as a crystalline solid. Best verified by identity, since its name is shared with a different substance.
Peptide
The copper-bound form of the tripeptide GHK: a single copper atom held by a three-building-block peptide, and a familiar small peptide in research.
Peptide
A synthetic six-building-block peptide in the growth-hormone-secretagogue class, and one of a small family of closely related secretagogues in the catalog.
Peptide
A synthetic five-building-block peptide (a pentapeptide) in the growth-hormone-secretagogue class — smaller than its six-block cousins, and heavily engineered.
Peptide
A ten-building-block peptide (a decapeptide) — the short active fragment of the larger kisspeptin protein. The '-10' marks its length.
Peptide
A synthetic 16-amino-acid peptide, unusual for being encoded within mitochondrial DNA rather than the nucleus. Supplied as a single-lot reference material.
Batch quality control
Each production lot is characterized by an independent contract laboratory across five separate checks, so a certificate reflects more than a single purity figure. When a lot’s results are published, it reports each measurement below against the stated method.
Until a lot’s third-party results are published, its page notes that testing is in progress rather than showing a specification in place of a measurement.
Method
Reverse-phase HPLC (RP-HPLC)
Reports the target peptide as a share of total UV-absorbing area — how much of the sample is the intended compound versus related impurities.
Method
Mass spectrometry (ESI-MS / MALDI-TOF)
Confirms the measured molecular mass matches the sequence on the label, so a pure sample is also verifiably the right molecule.
Method
Amino acid analysis
Separates true peptide mass from bound water, salts, and counter-ions, so a stated milligram amount reflects peptide rather than filler.
Method
Membrane filtration (USP <71>)
Screens the lot for viable bacterial and fungal growth — a materials-cleanliness question that purity and identity assays do not answer.
Method
LAL assay (USP <85>)
Quantifies bacterial endotoxin, a heat-stable contaminant reported in EU/mg that neither purity nor identity testing would detect.
These are laboratory characterization methods for research materials. A certificate records what an instrument measured on the tested sample from one lot — not an approval for any particular use.
Verification
We back every compound with a per-lot certificate of analysis, retrievable by lot number — no account, no email. It is the difference between a claim and a record you can check for yourself.
Enter a lot number to pull up the certificate for the exact vial you are holding. Until a lot’s results are published, its page notes that third-party testing is in progress — a specification is never shown in place of a measurement.
How we report purity
The specification is the standing commitment we make; the lot value is a measurement an instrument produced. Shown side by side — never merged, never rounded.
Compounds are grouped by the receptor or pathway they act on — mechanism class, never an intended outcome.
Peptide
A synthetic 39-amino-acid research peptide in the incretin family — one of the newer multi-target compounds. Supplied as a single-lot reference material.
Peptide
A larger peptide of thirty-seven building blocks, in the amylin-analogue class, carrying a fatty-acid tail attached to its chain.
Peptide
A synthetic 16-amino-acid peptide, unusual for being encoded within mitochondrial DNA rather than the nucleus. Supplied as a single-lot reference material.
Peptide
A short synthetic peptide corresponding to a tail-end fragment of human growth hormone, with one extra building block added at the front.
Common questions about our compounds, documentation, and shipping. More detail on the full FAQ.
Read the full FAQResearch use only
For laboratory research use only. Not for human or veterinary use.
Browse the full range of research compounds, or look up a lot number you already have.