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Research peptide · Lyophilized

Selank & Semax 10mg Research Blend

Selank & Semax — USA Made, ≥99% Purity

4.9 177 verified reviews

Balanced 10mg blend: Semax 5mg + Selank 5mg
USA manufactured in a Certified GMP California and Arizona laboratory.
≥99% purity target per component with independent third-party HPLC, mass spectrometry, and one combined batch-specific COA report

$99.99 $124.99 Save $25

Manufactured in a GMP facility · Independently tested · Batch COA

Dispatched from a US warehouse within 48 hours, tracked

Disclaimer

For research purposes only. Not intended for human consumption, medical use, diagnosis, treatment, or prevention of disease.

Specifications

Purity target

≥99%

≥99% per peptide component

Blend content

10 MG

Semax 5mg + Selank 5mg

Vial content

10 MG

Lyophilized Powder

Sequences

Semax: Met-Glu-His-Phe-Pro-Gly-Pro (MEHFPGP); Selank: Thr-Lys-Pro-Arg-Pro-Gly-Pro (TKPRPGP)

CAS: Semax: 80714-61-0; Selank: 129954-34-3
Molecular mass: Semax: 813.93 g/mol; Selank: 751.9 g/mol
Purity target: ≥99% per peptide component (3rd-Party HPLC Tested)
Form: Lyophilized Powder
Origin: Synthesized, Formulated & Packaged in CA/AZ, USA
Storage: Store at -20°C (Freeze) or 2–8°C (Refrigerated) protected from light

What is Semax + Selank?

This 10mg research blend contains Semax 5mg and Selank 5mg. Semax is a seven-amino-acid peptide built from an ACTH(4-7)-related sequence with a Pro-Gly-Pro tail, while Selank is a separate seven-amino-acid peptide based on a tuftsin-related sequence.

Researchers have studied Semax in preclinical neurotrophin and gene-expression models and Selank in GABA-related neurotransmission and regulatory-peptide models. Combining them in one vial does not create a new molecule or establish a proven joint effect.

How It Works

Semax provides an ACTH-fragment-derived signal: Preclinical work has examined changes in BDNF, NGF, and neurotrophin-receptor gene expression.

Selank provides a tuftsin-related signal: Laboratory studies report changes in genes involved in GABAergic neurotransmission and broader neural signaling.

Co-formulation supports a combined experimental condition: Both peptides can be observed within one controlled model without implying clinical synergy or an approved use.

Why Source from 321 Peptides?

Domestic accountability.

Semax + Selank is synthesized, manufactured, formulated, finished, and packaged in Certified GMP laboratory facilities in California and Arizona—never sourced from overseas or Mexico. That creates direct domestic supply-chain accountability from production through fulfillment.

Verification you can inspect.

Independent third-party HPLC evaluates each component's ≥99% purity target, while mass spectrometry confirms molecular identity. The results are documented in one combined, batch-specific Certificate of Analysis report.

Protected in transit.

Freeze-drying helps preserve compound stability during storage and shipping. Rapid domestic fulfillment reduces unnecessary time and handling in the delivery network.

Frequently Asked Questions

What is in the Semax and Selank 10mg blend?

Each vial contains Semax 5mg and Selank 5mg, for 10mg total research material. The peptides remain distinct compounds within the lyophilized blend.

What is the difference between Semax and Selank?

Semax has the sequence MEHFPGP and is studied in neurotrophin and gene-expression models. Selank has the sequence TKPRPGP and is studied in GABA-related and regulatory-peptide models.

Are Semax and Selank FDA approved?

No, neither Semax nor Selank is an FDA-approved human drug product. This blend is supplied exclusively for controlled, non-clinical research.

Which COA applies to my vial?

The lot code printed on the vial. Select it above and the certificate for that batch is returned, including the chromatogram it came from.

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