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Cognitive Stack — Semax 10mg + Selank 10mg bundled together. Two of the most researched neuropeptides paired for cognitive and stress-response research. ≥99% HPLC purity, third-party Certificate of Analysis on every lot. Save 15% vs buying individually. For research use only — not for human consumption.
In stock
10 MG/10 MG
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Order within 7h 43m to ship today · Arrives Oct 18 – Oct 20
Every batch independently third-party lab tested. Lyophilized and sealed. Same day shipping from our US facility on orders placed by 2 PM ET.
≥99% HPLC purity
Every batch verified by an independent third-party lab. COA available on request and in the product gallery.
Lyophilized powder
Stable, shelf-ready powder. Sealed vial, stored dry and away from light.
Same day shipping
Order by 2 PM ET and it ships today. Cold-chain packaging on every order. Tracking provided on dispatch.
COA per batch
Certificate of Analysis for every lot. Identity, purity, and quality data — included in the product gallery.
About this compound
More on Cognitive Stack.
The Cognitive Stack combines Semax 10mg and Selank 10mg in a convenient research bundle for laboratories investigating neuropeptide signaling, cognitive biology, stress-response pathways, and related neurological mechanisms.
Both compounds are supplied as individually sealed lyophilized vials and tested at ≥99% HPLC purity, with batch-specific third-party Certificates of Analysis available for research documentation.
What’s Included
1 × Semax 10mg lyophilized vial
1 × Selank 10mg lyophilized vial
Third-party COA documentation for each lot
Individual batch identification for research traceability
Selank is a synthetic heptapeptide analog of tuftsin. It has been investigated in experimental models involving GABAergic signaling, stress-response mechanisms, cytokine regulation, and neurobiological pathways.
The combination provides researchers with two distinct peptide research materials that can be evaluated independently or within the same experimental program.
Product Specifications
Specification
Semax
Selank
Quantity
10mg
10mg
Form
Lyophilized
Lyophilized
Purity
≥99% HPLC
≥99% HPLC
Identity testing
Mass spectrometry
Mass spectrometry
Documentation
Batch-specific COA
Batch-specific COA
Storage & Handling
Keep the lyophilized vials protected from heat, moisture, and direct light. Store according to the conditions specified in the applicable batch documentation. After preparation, follow established laboratory procedures for handling and refrigerated storage.
Frequently Asked Questions
What is included in the Cognitive Stack?
The bundle contains one 10mg lyophilized Semax vial and one 10mg lyophilized Selank vial, with batch-specific documentation for each compound.
Are Semax and Selank supplied together in one vial?
No. Each peptide is supplied in its own individually sealed vial, allowing researchers to handle and evaluate the compounds separately.
What purity are the peptides tested to?
Both Semax and Selank are specified at ≥99% HPLC purity, with additional analytical identity verification.
Is a Certificate of Analysis included?
Batch-specific COA documentation is available for the individual peptide lots, providing analytical information for research records and verification.
What are Semax and Selank studied for?
Semax has been investigated in research involving neurotrophic and neurotransmitter signaling, while Selank has been studied in relation to GABAergic, stress-response, and immunomodulatory pathways.
Is the Cognitive Stack intended for human use?
No. It is supplied strictly for laboratory research and is not intended for human or veterinary administration.
Research Use Only
This product is supplied exclusively for qualified laboratory research. It is not intended for human or veterinary use, administration, diagnosis, treatment, or prevention of disease.
Researchers are responsible for following applicable laboratory safety procedures, institutional requirements, and regulations governing research materials.
No. All NXTSTATE products are sold strictly for laboratory research use only. They are not intended for human consumption, ingestion, or in vivo administration.
How is purity verified?
Every batch is independently tested by a third-party lab. The Certificate of Analysis confirms identity and ≥99% HPLC purity, and is included in the product gallery for every order.
How fast does it ship?
Orders placed before 2pm ET ship same-day. Most orders arrive in 24–48 hours within the US via expedited carrier. Tracking is sent on dispatch.
How should it be stored?
Lyophilized peptide should be stored sealed at room temperature, away from light and moisture.
What payment methods do you accept?
Visa, Mastercard, Zelle, Cash App, and Venmo. Card processing handled securely via our processor. Off-platform options (Zelle/CashApp/Venmo) available at checkout.
