Serene provides research products exclusively for qualified researchers and laboratories for in vitro and laboratory use. Please confirm the following before continuing.
By proceeding, you affirm the statements above are true. Products are not for human or veterinary use, not for use in diagnostic procedures, and have not been evaluated by the U.S. Food and Drug Administration.
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Every batch independently third-party lab tested. Every batch independently third-party lab tested. Built for serious nasal-delivery research.
Everything you need for nasal-delivery research models — Semax, Selank, bacteriostatic saline, and the applicator — in one shipment.
All three peptides independently tested by Chromate Laboratories with ≥99% verified purity. COAs available per batch.
All three vials bundled at a meaningful discount vs. buying them separately.

The same Cognitive Stack but in our nasal applicator format. Everything you need in one box — both peptides, the saline, and the nasal applicator. Way easier than buying everything separately.
All three peptides are manufactured at compounding facilities operating under GMP-aligned standards and independently verified for purity and identity in every batch.
For research use only. Not for human consumption.
The Cognitive Stack Nasal Kit is the Cognitive Stack delivered in nasal applicator format. Includes Semax (10 mg), Selank (10 mg), bacteriostatic saline, and a nasal applicator. Sold for research use only.
Every lot of Cognitive Stack Nasal Kit is independently tested by Chromate Laboratories before release. We verify identity, purity (≥99%), and endotoxin levels. A Certificate of Analysis for your specific lot is available on request — just email admin@nxtstate.co with your order number.
All three lyophilized vials are shelf-stable at room temperature (away from direct light). Once reconstituted with sterile bacteriostatic water, vials should be refrigerated at 2-8°C and used within the standard stability window for repair research peptides.
Each order ships with the Cognitive Stack Nasal Kit unit(s) you purchased. Reconstitution materials (bacteriostatic water, syringes, alcohol pads) are available as separate products. We recommend ordering them together if it’s your first shipment.
Orders placed before 2pm ET ship same-day. After that, next business day. All shipments include tracking, and you’ll receive an email the moment your order is on the way. Free shipping on orders over $200.
Cognitive Stack Nasal Kit is compounded at facilities operating under GMP-aligned standards. We work exclusively with manufacturers who allow third-party lab verification of every batch we release.