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PROVYD Research Peptides

For laboratory research use only. Not for human or veterinary use, and not evaluated by the FDA. Documentation shown is supplier-provided.

1/65mg
Selank 5mg research vial

01 · The vial

Labelled with compound, concentration, lot, and research-use-only status.

Cognitive Research

Selank

5mg, with its supplier Certificate of Analysis published before you order. Without sourcing roulette, unlabelled vials, or crypto-only checkout.

SelankCognitive ResearchResearch peptideCAS 129954-34-3
  • Supplier COA on every batch, published on this page, readable before you pay.
  • Identity you can verify, CAS 129954-34-3, molecular formula and weight listed, cross-checkable on PubChem.
  • No testing claims we cannot back, Provyd runs no in-house testing and says so, documentation is supplier-provided.
  • Card checkout, US dispatch, tracked, shipment protection included on every order.

For in-vitro laboratory research use only. Not for human or veterinary use.

$38per vial

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For laboratory research use only. Not for human or animal use.

Questions on documentation? Open the COA Center

48

Studies cited

every DOI verified

12

Compounds documented

with primary literature

99%+

Supplier-stated purity

per batch COA

100%

Orders tracked

shipment protection included

Back to catalog
Supplier-provided documentation
Clear catalog concentration
Secure checkout
Ships with order records
Research-use-only labeling

Before you order

  • Is documentation included?

    Yes, a supplier COA is published for every batch and can be viewed before you order.

  • Do you test it yourselves?

    No. Provyd runs no in-house or independent testing, and all documentation is supplier-provided.

  • Is this for human use?

    No. Every compound is sold strictly for in-vitro laboratory research.

  • How fast does it ship?

    Orders dispatch from the US with tracking, typically within one business day of ordering.

  • Can I pay by card?

    Yes, standard card checkout with a verified researcher account, and no crypto is required.

  • What if it arrives damaged?

    Shipment protection covers replacement, with the details set out in our guarantee.

Certificate of Analysis

Certificate of Analysis

Supplier-provided documentation

Supplier COA on file

The details below reflect what a supplier COA reports. Provyd does not run its own laboratory testing and does not claim independent or third-party verification. Read every value as a supplier statement, and confirm it against the document supplied with your order.

Purity (HPLC)
As stated on supplier COA
Identity (MS)
Mass-confirmed on supplier COA
Net peptide content
As stated on supplier COA
Heavy metals
Per supplier documentation
Sterility
Per supplier documentation
Endotoxin
Per supplier documentation

Placeholder structure shown for demonstration. Specific purity percentages and lot numbers appear only on the supplier document itself, not as Provyd-tested figures.

View COA Center

Inspect it yourself

Six things worth checking on any research-chemical order, and what you get here versus what the category typically does.

Inspection details: cap seal, lot block, fill volume, desiccant, outer packaging, and paperwork

Provyd

Aluminium crimp seal intact and unbroken, stopper embossed. A seal that arrives compromised is grounds for replacement.

Typical research-chemical vendor

Loose or re-crimped caps are common, with no stated policy if the seal arrives broken.

Describes common practices in the research-chemical category, not any specific company. Provyd performs no independent or third-party testing, and all documentation referenced is supplied by the manufacturer.

Frequently researched together

Sibling concentrations and adjacent references researchers commonly study alongside this one.

PROVYD Semax 5mg research vial
Cognitive Research

Semax 5mg

From $40

PROVYD BPC-157 5mg research vial
Research Recovery

BPC-157 5mg

From $45

PROVYD BPC-157 10mg research vial
Research Recovery

BPC-157 10mg

From $69

PROVYD TB-500 5mg research vial
Research Recovery

TB-500 5mg

From $45

PROVYD GHK-Cu 50mg research vial
Cosmetic Research

GHK-Cu 50mg

From $40

PROVYD GHK-Cu 100mg research vial
Cosmetic Research

GHK-Cu 100mg

From $55

Compound information

Selank 5mg is a research-use-only peptide reference for controlled catalog studies. The 5mg format supports comparison planning and supplier-provided documentation review.

Researchers may compare Selank with Semax, related peptide references, and controls. Evaluation should focus on sequence identity, concentration, and documentation.

Researchers commonly compare against

  • Sibling concentrations of the same compound
  • Adjacent Cognitive Research references
  • Vehicle and control materials
  • Supplier-provided documentation and lot records

Molecular profile

Type
Cognitive Research
Compound
Selank
Concentration
5mg
CAS number
129954-34-3
Molecular formula
Not listed
Molecular weight
751.9 g/mol
Sequence
Heptapeptide
Look up on PubChem →

Reference identifiers are shown for research reference only. Verify them against the supplier-provided COA.

Storage & stability

Store according to the supplier-provided documentation. Keep sealed, protected from light, and logged against lot and concentration in your inventory records.

Published literature

Peer-reviewed research on this compound, cited so you can read the primary sources yourself. Every DOI and PMID below was checked to resolve.

State of the evidence

Limited human clinical trial data exists, confined to small Russian-language studies in anxiety disorders published in a single journal; no large multicentre or Western regulatory-grade trials identified. Remaining evidence is animal-preclinical.

  • Human clinical trialZhurnal Nevrologii i Psikhiatrii imeni S.S. Korsakova · 2008

    [Efficacy and possible mechanisms of action of a new peptide anxiolytic selank in the therapy of generalized anxiety disorders and neurasthenia]

    Zozulia AA, et al.

    In 62 patients with generalized anxiety disorder or neurasthenia, Selank given to 30 patients reported anxiolytic effects similar to medazepam alongside additional antiasthenic and psychostimulant effects, assessed on Hamilton, Zung and CGI scales.

    PMID 18454096Read the source
  • Human clinical trialZhurnal Nevrologii i Psikhiatrii imeni S.S. Korsakova · 2014

    [A comparison of the anxiolytic effect and tolerability of selank and phenazepam in the treatment of anxiety disorders]

    Medvedev VE, et al.

    In 60 patients with phobic-anxiety and somatoform disorders, Selank reported anxiolytic and mild nootropic effects compared with phenazepam, with the anxiolytic effect persisting for one week after the last dose.

    PMID 25176261Read the source
  • Animal preclinicalBulletin of Experimental Biology and Medicine · 2019

    Selank, Peptide Analogue of Tuftsin, Protects Against Ethanol-Induced Memory Impairment by Regulating of BDNF Content in the Hippocampus and Prefrontal Cortex in Rats

    Kolik LG, et al.

    In rats chronically exposed to ethanol, Selank at 0.3 mg/kg daily for 7 days prevented ethanol-induced memory and attention disturbances during withdrawal (p<0.01) and prevented the ethanol-induced increase in BDNF content in hippocampus and frontal cortex.

    DOI 10.1007/s10517-019-04588-9PMID 31625062Read the source
  • Animal preclinicalBulletin of Experimental Biology and Medicine · 2022

    Selank, a Peptide Analog of Tuftsin, Attenuates Aversive Signs of Morphine Withdrawal in Rats

    Konstantinopolsky MA, et al.

    In a naloxone-precipitated morphine withdrawal model in rats, a single 0.3 mg/kg dose of Selank reduced the total morphine withdrawal syndrome index by 39.6% and increased the tactile sensitivity threshold 9-fold versus active control.

    DOI 10.1007/s10517-022-05624-xPMID 36322304Read the source

These references are provided as scientific context on the compound for qualified researchers. They describe published research findings, not results from Provyd products, and are not a representation that any product will produce any outcome. Provyd sells materials for in-vitro laboratory research use only. Nothing here is medical advice or an endorsement of human or veterinary use.

Catalog Experience Reviews

Reviews cover ordering, documentation, labeling, shipping, and support, not product outcomes.

5.0 · 3 reviews

Demo seed reviews, not verified customer outcomes

Catalog

Research-use labeling is upfront

Research-use-only labeling and supplier sourcing were stated plainly. No overclaiming, which I appreciate.

Iris H.· Mar 2026
Catalog

Clean concentration comparison

The catalog page made comparing concentrations across formats straightforward. Clear, no clutter.

Marcus T.· Apr 2026
Documentation

Clear labeling

Clean labeling and easy documentation access. The page made concentration comparison straightforward.

Lena M.· Mar 2026

Our guarantee

Ordered with confidence, or we make it right

Four commitments that cover how your order arrives and what documentation comes with it. Materials are supplied for laboratory research use only.

  • Shipment protection on every order

    If your order is damaged, lost, or stolen in transit, we replace it at no cost to you.

  • Documentation guarantee

    If the supplier COA for your batch turns out to be unavailable, you get a full refund.

  • Labelling accuracy

    If the vial does not match the compound and concentration shown on the listing, we replace it or refund it.

  • Claims window and evidence

    Send photo evidence within 10 days of delivery. Opened or reconstituted vials are not eligible.

Read the full refund policy

Provyd runs no in-house or independent testing. All documentation referenced here is supplier-provided.

Important research notice

All products sold by Provyd are intended strictly for in-vitro laboratory research use only. They are not for human or animal consumption and are not drugs, foods, cosmetics, or dietary supplements. They are not intended to diagnose, treat, cure, or prevent any disease and have not been evaluated by the U.S. Food and Drug Administration. Documentation shown is supplier-provided unless otherwise stated.