Cognitive NA Selank

Premium NA Selank for stress-response research

NA Selank — an acetylated Selank research peptide — modeled on tuftsin with a Pro-Gly-Pro stability tail.

NA Selank

Research overview

Selank is a synthetic seven-amino-acid peptide (TKPRPGP). It was built by taking tuftsin — a natural immune peptide the body clips from antibodies — and adding a short protective tail. That tail stops the body from breaking Selank down too quickly, making it stable enough to spray in the nose and reach the brain. The approved Russian formulation is a 0.15% nasal-drop solution. It was developed at the Institute of Molecular Genetics in Moscow. Selank is used as a prescription drug only in Russia, where it is approved for generalized anxiety disorder and neurasthenia (chronic fatigue combined with anxiety).

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Details

Strength:10mg
Form:Lyophilized research material
Testing:Third-party tested
Documentation:COA available
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Handling

Keep lyophilized research material sealed, protected from light, and handled with standard laboratory controls. Follow internal SOPs for storage, reconstitution, labeling and disposal.

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Regulation

Not FDA-approved for human use in the United States. Has never been filed with FDA for any indication, and no FDA IND is on file in the FDA Drugs@FDA registry as of the April 15, 2026 503A Categories Update. Sold in the United States only as a research chemical for in-vitro and animal study.

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Molecules

NA Selank is an acetylated/amidated Selank-family heptapeptide. The parent Selank sequence is TKPRPGP and PubChem indexes Selank at CID 11765600 with formula C33H57N11O9 and molecular weight 751.9 g/mol.

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Testing

We display batch-level certificates of analysis (mass spec, HPLC purity) for all research-grade material.

Why Premium Peptides?

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Premium Purity

Lyophilized peptides manufactured in GMP-certified facilities. No fillers, no shortcuts.

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Third-Party Tested

We display batch-level certificates of analysis (mass spec, HPLC purity) for all research-grade material.

$100

Free Shipping

Discreet, temperature-controlled shipping included on every order. No hidden fees.

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Fast Fulfillment

Orders processed within 24 hours. Most shipments arrive in 3–5 business days.

IMPORTANT: All products sold by Premium Peptides are intended for laboratory research only. They are not intended for human consumption, medical use, or as substitutes for prescription medications. These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.