Qingdao Sigma Chemical
qingdaosigma.com
Email me when this record changes
Following this record emails you when it gains a dated entry or its published claims are re-read, and nothing about any other supplier. No topic below is ticked: tick one only if you also want it in the same email.
Compiled automatically from the dated observations in this vendor's record. How we evaluate.
Never merged into one number. Some supplier links here are referral links, marked where they appear, which pay Terminus Research when a reader buys. The same terms are open to every supplier in the ledger, apart from the one exception the referral policy page names, participation changes no score, rank, caution, or coverage decision, and a link is not an endorsement.
Qingdao Sigma Chemical shows a four-badge verification display on its product pages, Janoshik Analytical, Medutest, PeptideMeter and VendorInvestigate, but only Janoshik is an independently recognized laboratory, and no purity figure, lot number or test date appears as text on any linked report page. A rival domain, qscpeptide.com, states in its own About page that it is not associated with qingdaosigma.com, and Finnrick's independent testing of the brand returned 27 passes against 14 fails on its purity-and-fill standard. Prices here run roughly a fifth of what QSC-branded forum channels quote for the same names; anyone who can trace qingdaosigma.com's actual operator, whether the QSC brand owner or a separate outfit using the name, could settle the question this record leaves open.
What the record holds
STATED WINDOW IN DAYS
“Standard shipping: $25 worldwide with full tracking - 7-15 business days”
Express Priority shipping $50, fully tracked via USPS Priority Express, elsewhere given as 3-6 business days. Orders $500+ get 5% off plus free express. Delivery guarantee: reship on non-arrival or customs seizure.
Read from this supplier's own pages on 2026-08-20. This publication has never placed an order with any supplier. This row records what is written and measures nothing about what actually happens after an order.
No Trustpilot listing for this supplier could be read on 2026-08-25.
Terminus read the standing of the listing itself and nothing under it. The reviews behind any figure above were not gathered, read, or checked here, and no reader review on this site feeds that number.
This record is older than the re-read program, so no claim-by-claim accounting exists for it yet.
Dated entries
8 observations on file, recorded 2026-08-20. Newest first, appended and never rewritten.
Certificates and testing: PER-PRODUCT LINKING: yes. Every product tile carries a "Test Report" link, and per-product report pages resolve at /reports/ (confirmed at /reports/TR15 and /reports/BC5). Product pages also show "Verified on Medutest" plus "View All Test Reports". LABS NAMED (four): "Janoshik Analytical (Czech Republic)", "Medutest (Geneva, CH)" branded "Maison d'Analyse", "PeptideMeter (Independent)", "VendorInvestigate (Testing Bureau)".
Pricing observed: Prices exactly as displayed on the catalog and product pages (catalog rendered through a text-reader proxy because products load via JavaScript): - Tirzepatide 15mg*10vials, catalog no. TR15: "$70.00" single kit, "$65.00" bulk at 10+ kits - Tirzepatide 10mg, "1 kit (10 vials)": "$60.00" - Semaglutide 5mg, "1 kit (10 vials)": "$40.00" - Retatrutide 10mg, "1 kit (10 vials)": "$95.00" - BPC-157 5mg*10vials, catalog no.
Catalog: BREADTH CLAIMED: "350+ research compounds" and "350+ Janoshik-tested peptides, SARMs, injectables & raws". Homepage names the ranges as peptides, tianeptine, HGH, SARMs, nootropics, injectable oils, oral tablets and raw materials. Catalog filters read "All Products Bundles Peptides Oral Tablets Injectable Oils Raw Materials" and "All Popular New Best Value". BREADTH ACTUALLY RENDERED: only 12 SKUs loaded before a "Load More Products" control.
Shipping and policies: DISPATCH AND COST, verbatim: "Standard shipping: $25 worldwide with full tracking - 7-15 business days" and "Express Priority shipping: $50 - fully tracked via USPS Priority Express" (elsewhere given as 3-6 business days). "Orders $500+ 5% OFF + Free Express". DELIVERY GUARANTEE, verbatim: "We offer a 100% delivery guarantee. If your package does not arrive, we reship"; "Customs seizure: We reship immediately upon receiving the seizure letter";
Community record: FINDINGS (third-party testing, recent, brand-level). Finnrick's vendor page for "Qingdao Sigma Chemical QSC" publishes 41 independent lab tests, 27 passed and 14 failed, against its stated criterion "Purity Focus (HPLC purity at least 99.5%, fill within +/-35% of the label claim)". Earliest test 20 May 2026, most recent 23 July 2026. By compound: CJC-1295 4 tests, 28% rating; GHK-Cu 5 tests, 81% rating; Retatrutide 15 tests, 69% rating;
CAUTIONCautions noted: Observations only. Allegations are attributed to their source. No verdict is offered on whether this storefront is authentic. 1. DOMAIN-IDENTITY DISPUTE, UNRESOLVED. qscpeptide.com's About page states verbatim: "We are not associated with qingdaosigmachems.com / qingdaosigmachemical.com / qingdaosigmachemical.net / qingdaosigma.com.
Could not be verified: Stated plainly, these could not be confirmed: - WHETHER qingdaosigma.com IS OPERATED BY THE QSC BRAND OWNER. This is the central open question and it was not resolved. Competing domains publish contradictory official-domain lists and one publishes a direct impersonation allegation against this domain. - ACTUAL PURITY OF ANY ITEM SOLD HERE. No purity figure, lot number or test date appears as text on the report pages.
Summary: qingdaosigma.com sells a GLP-1 led catalog (Tirzepatide, Semaglutide and Retatrutide occupy the top of the listing) at prices roughly a fifth of what QSC-branded forum channels quote, behind a four-badge verification display in which only Janoshik Analytical is an independently recognized laboratory, the other three verifiers state they withhold lab identities, and no purity figure, lot number or test date appears as text on any report page.
Reader reviews
No reader review of this supplier is published yet. Every review is read and checked against the record before it appears. Add a review.
Open this supplier
Some supplier links here are referral links, marked where they appear, which pay Terminus Research when a reader buys. The same terms are open to every supplier in the ledger, apart from the one exception the referral policy page names, participation changes no score, rank, caution, or coverage decision, and a link is not an endorsement.