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Qingdao Sigma Chemical QSC is an unverified PeptideCensus listing. Sells through a chat or social channel rather than an assessable storefront. Its 47 published third-party results still appear on our compound boards, marked Unverified.
The Finnrick directory counts 47 published third-party results for Qingdao Sigma Chemical QSC, the latest dated 16 Sept 2026. It appears on 3 compound boards; its best scored placement is #5 on the HGH board, scoring 41 from 1 test.
Whichever seller you use, match the certificate to the lab's own records before trusting a vial: search its code in the Freedom Diagnostics lookup or check a Janoshik report with its key (how to verify a Janoshik report). A certificate covers one tested batch, so compare its batch number and date with the vial you receive.
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