FREE PRIORITY SHIPPING OVER $200  ·  SAME DAY SHIPPING BY 2 PM ET  ·  THIRD-PARTY LAB TESTED
FREE SHIPPING OVER $200 · SAME DAY SHIPPING BY 2 PM ET · THIRD-PARTY LAB TESTED
Serene
Recovery & Repair · Research Stack

Cognitive Stack Nasal Kit

Semax + Selank · Nasal applicator kit
★★★★★ 5.0 · 79 reviews
1 vial
Single unit
$100.00
2 vialsSave $10.00/ea
$90.00 each
$100.00 $90.00/ea
3+ vialsBest value
$85.00 each · Save $15.00/ea
$100.00 $85.00/ea
Quantity
Third-party lab tested Same day shipping COA available Free shipping $200+
  • Includes Semax 10 mg + Selank 10 mg + saline + applicator
  • Both peptides at ≥98% verified purity
  • Independently lab tested in every batch by Chromate Laboratories
  • Complete kit — no separate components needed

Why researchers choose this.

Every batch independently third-party lab tested. Every batch independently third-party lab tested. Built for serious nasal-delivery research.

⌬

Complete nasal research kit

Everything you need for nasal-delivery research models — Semax, Selank, bacteriostatic saline, and the applicator — in one shipment.

✓

Verifiable purity

All three peptides independently tested by Chromate Laboratories with ≥99% verified purity. COAs available per batch.

◐

Best stack value

All three vials bundled at a meaningful discount vs. buying them separately.

Cognitive Stack Nasal Kit vial

What is Cognitive Stack Nasal Kit?

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.

Product specifications.

Compound
Semax + Selank · Nasal Kit
Category
Cognitive research bundle · nasal format
Quantity per vial
10 mg Semax + 10 mg Selank + saline + applicator
Form
10 mg Semax + 10 mg Selank + saline + applicator
Purity
≥99% (third-party verified)
Storage (unopened)
Room temperature, away from light
Storage (reconstituted)
Refrigerate, 2-8°C
Lab testing
Chromate Laboratories · per-lot COA

Frequently asked.

What is Cognitive Stack Nasal Kit?

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.

How is purity verified?

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.

How should it be stored?

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.

What does each shipment include?

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.

How fast does it ship?

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.

Where is it manufactured?

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.

What researchers are saying.

★★★★★
5.0 / 5
Based on 79 verified reviews
★★★★★
“The nasal kit is such a time saver. Everything is in one box and the instructions are easy to follow.”
— Verified buyer · Apr 2026
★★★★★
“Applicator works really well. So glad I went with the kit instead of trying to piece it together myself.”
— Verified buyer · Feb 2026
★★★★★
“Already on my third reorder. Shipping is always fast and the kit comes well packed.”
— Verified buyer · Dec 2025

Pair with related compounds.

FOR RESEARCH USE ONLY · NOT FOR HUMAN CONSUMPTION.
Products sold by Serene are intended for in-vitro research and laboratory experimentation only. Not intended to diagnose, treat, cure, or prevent any disease.