Trading-company supplier based in China, tracked by the GLP-1 Forum community at Tier 3. Assigned to manufacturer cluster Group 2, meaning its finished kits come from the same upstream fill-and-finish line as the other vendors in that cluster. Group 2 membership. 'Uninterrupted Operations.'
QST Peptide is based in China, specialising in GLP-1 Peptides, Tirzepatide, minimum order Not disclosed.
No manufacturing licence is recorded for QST Peptide in our data. That is an absence of information rather than evidence of a problem, but it means nothing here has been verified against a regulator's register.
No independent assay in our records names QST Peptide as the manufacturer. Manufacturer attribution only appears where a certificate of analysis records it, so this is common and is not a quality signal in itself.
Manufacturer entries describe who produces a compound, not who sells it to you. For purchasing, the vendor directory records storefront reachability, assay history and FDA warning-letter history separately.
Directories: All manufacturers, Vendor directory, Independent lab tests.