Orexin-A

Orexin-A 10mg — 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 OA-2608 of Orexin-A 10mg — 10-Vial Pack is verified in-house at 99.0% 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.

Several cognitive peptides — particularly Selank and Semax — have been studied via intranasal administration in published research. Nasal formulations are typically prepared at lower concentrations (around 0.1-0.5 mg/mL) with adjusted osmolarity. QSC ships the lyophilized peptide; the choice of administration route and formulation is up to the researcher.

Yes — most cognitive peptides are light-sensitive once in solution. Store reconstituted material in amber vials or wrapped in foil and keep refrigerated. Avoid repeated freeze-thaw cycles. Typical post-reconstitution stability is 4-6 weeks at 2-8°C in bacteriostatic water.