Cagrilintide + VLT-SEM Blend

Two synthetic research peptides supplied together. Composition, handling, and lot testing.

This listing is a research blend of two synthetic peptides supplied together in one vial: cagrilintide, a synthetic analog of the peptide hormone amylin, and VLT-SEM, Vaelith's listing for the synthetic peptide published in the literature as semaglutide. Each component is a distinct peptide that appears separately in the published research literature, and each is covered individually by the lot certificate. This page is background about the material and is not medical guidance or intended for human use; no combined effect is claimed.

Composition and structure

The blend is a two-peptide research material. Cagrilintide is a synthetic, modified peptide sequence, and VLT-SEM is a synthetic, modified peptide sequence; both are single-chain peptides carrying chemical modifications along the sequence. The two are supplied together as a single lyophilized (freeze-dried) powder, and the certificate for each lot reports on both components. Physical details for VLT-SEM on its own, including its length and approximate molecular weight, are on the VLT-SEM page; cagrilintide has its own entry at Cagrilintide. The blend is supplied strictly as a research material.

Handling and storage

The blend ships as a lyophilized powder in a sealed vial. As a research material it is stored cool, dark, and dry, with the vial kept sealed until it is needed for laboratory work. Laboratories follow their own institutional handling and stability protocols. Vaelith does not provide preparation or use instructions of any kind.

How Vaelith tests each lot

Every production lot of the blend is tested before it is listed, and both components are reported on the same certificate. Identity of each peptide is confirmed by mass spectrometry, purity is measured by HPLC, and net content is checked against the label. Lots are not tested for endotoxin, heavy metals, or sterility, and the certificate says so plainly rather than leaving the field blank.

• Identity: mass spectrometry for each component, observed mass compared with the expected mass.
• Purity: HPLC, reported as a percentage with the method noted.
• Net content: measured against the labeled amount of each component.
• Not tested: endotoxin, heavy metals, sterility.

Results are recorded in a lot passport that you can open at any time by entering the lot number on the verification page (the address takes the form /verify.html?lot=...). Each certificate also carries a fingerprint, so the document you are reading can be matched to the one on file.

Reading the certificate

A certificate for the blend lists the lot number, both component names, the identity result for each with the observed mass, the purity figure from HPLC, the net content, and the tests that were not performed. If any of those fields is missing, or the fingerprint on the certificate does not match the lot passport, treat the certificate as unverified and contact us before relying on it.