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 cognitive research.
Semax and Selank are the two most-studied cognitive support peptides. Bundled together at a single price for combined research models.
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 Cognitive Stack is our two most popular cognitive support peptides bundled at one price. People who order one usually end up wanting the other, so we put them together to make it easier.
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 bundles Semax (10 mg) and Selank (10 mg) — two of the most extensively studied cognitive research peptides. Sold for research use only.
Every lot of Cognitive Stack 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 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 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.
