Trading-company supplier based in China, tracked by the GLP-1 Forum community at Tier 2. 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. Finnrick top 10 for tirzepatide (B rating). Group 2 membership. US warehouse. Claims ≥98% purity, ≥90% fill.
M-Peptides Science (MPS) is based in China, specialising in GLP-1 Peptides, Tirzepatide, minimum order Not disclosed.
No manufacturing licence is recorded for M-Peptides Science (MPS) 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 M-Peptides Science (MPS) 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.
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