VLT-RT
A synthetic peptide in Vaelith's house series. Structure, handling, and lot testing.
VLT-RT is Vaelith's listing for the synthetic peptide published in the literature as retatrutide. It is supplied as a lyophilized (freeze-dried) powder for laboratory research, and this page is a reference for what the material is, how it is stored, and how each production lot is tested before it ships. It is not a description of use in people or animals.
Identity and structure
VLT-RT is a synthetic, modified peptide sequence: a single chain of amino acids carrying chemical modifications along the sequence, with an approximate molecular weight of 4.7 kDa. The compound appears in the published research literature under its literature name, and researchers who need more than a physical description consult that literature directly. For laboratory work, identity and purity are the properties that matter most, which is why every production lot is characterized by third-party analysis before it is listed.
Handling and storage
VLT-RT 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 VLT-RT is tested before it is listed. Identity 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, observed mass compared with the expected mass.
- Purity: HPLC, reported as a percentage with the method noted.
- Net content: measured against the labeled amount.
- 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 lists the compound and lot number, the identity result 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.
Frequently asked
What is VLT-RT?
A synthetic peptide in Vaelith's house series, supplied lyophilized as a laboratory research material. It is a research compound, not an approved product.
Is VLT-RT a drug?
No. Material supplied for research is a laboratory research chemical: not a drug, supplement, or medical product, and not approved for use in humans or animals.
How is VLT-RT stored in a laboratory setting?
Cool, dark, and dry, in its sealed vial, following the laboratory's own institutional protocols. The certificate for each lot documents identity, purity, and net content.
How do I know a lot is genuine?
Each lot has a certificate of analysis and a lot passport. Enter the lot number on the verification page to see its identity, purity, and net-content results and the certificate fingerprint. Certificates for all lots are also collected on the COA page, and the compound itself is listed in the store.