Semaglutide

Semaglutide 40mg — 10-Vial Pack is supplied as lyophilized powder under nitrogen. Typical reconstitution is in sterile or bacteriostatic water; the exact concentration depends on your protocol. Our free reconstitution calculator computes mL per dose and insulin-syringe units from any combination of vial size, water volume, and target dose.

Batch SG-2607 of Semaglutide 40mg — 10-Vial Pack is verified in-house at 99.4% HPLC main-peak purity, with molecular weight confirmed by LC-MS and endotoxin screened by LAL assay. That in-house COA — chromatogram, mass spec trace, and purity call — is bundled with your order as a downloadable PDF. Independent third-party re-verification can be arranged for a specific batch on request; it isn't run by default.

All orders ship cold-chain via DHL, UPS, or FedEx from our China facility. Cold-pack is validated to hold under 8°C for 96 hours. Customs duties are prepaid by us — no surprise charges on delivery. Estimated transit time is 7-10 business days door to door. Tracking number is emailed when the shipment is scanned by the courier.

USDT (Tron TRC-20, 5% off, fastest) — currently our only payment method while ACH and wire transfer are temporarily paused. We do not accept credit cards because card processors prohibit research-peptide merchants in their terms of service. Full payment-method details are on the shipping & payment page.

Semaglutide has a reported plasma half-life of approximately one week in human pharmacokinetic studies, supporting weekly dosing schedules in research protocols. The extended half-life comes from albumin binding via the molecule's fatty acid side chain modification.

Semaglutide is one of several GLP-1 receptor agonists in active research. QSC also stocks tirzepatide (dual GLP-1 + GIP) and retatrutide (triple GLP-1 + GIP + glucagon) for comparative studies. All ship from the same QC pipeline so cross-compound comparisons don't carry batch-to-batch confounders.