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Selank

Also known as Tuftsin analogue

Tuftsin analogue peptide with anxiolytic/nootropic research and limited clinical GAD data.

Tier B-Cmed–high riskintermediateFDA Flagged
Tier B-C
Evidence
1-3 week burst
Protocol
med–high
Risk
intran.
Route

FDA Safety Flag

The FDA has identified this substance as one that may present significant safety risks when used in compounding, including concerns about immunogenicity, impurity characterization, and/or insufficient safety information.

Not Approved

This substance is not approved by any major regulatory body for human therapeutic use. All information is derived from preclinical research, limited clinical studies, or off-label contexts.

Evidence visual

Selank evidence and risk matrix

intermediate researcher fit

Evidence

Tier B-C

Risk

med high

Regulatory

not approved

WADA

unknown

FDA

flagged

Route

intranasal

Mixed evidence profile. Useful for comparison, not a standalone protocol decision.

Overview

Selank is a tuftsin analogue peptide with proposed neuroactive effects including allosteric modulation of the GABAergic system. A human GAD study reports intranasal administration of 2700 µg/day. Gene-expression changes consistent with complex neuroactive effects have been described. Limited Western regulatory framing; treat as higher scrutiny.

Decision path

Where Selank fits in the research path.

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3 related goals
  1. 01

    Read evidence

  2. 02

    Check risk

  3. 03

    Compare options

  4. 04

    Build plan

Peptide research path

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Research Details

Mechanism of Action

Gene-expression changes consistent with neuroactive effects; proposed allosteric modulation of GABAergic system.

Administration Routes

intranasal

Study Dose Range

Human GAD study: intranasal 2700 µg/day.

Expected Effects

Anxiolytic/calm focus effects reported in limited clinical settings.

Dosing Timeline

Some rapid responders described in clinical abstracts, but not broad RCT-grade evidence.

Contraindications

No established label.

Adverse Effects

Limited Western regulatory data; higher scrutiny warranted.

Interaction Notes

Animal diazepam interaction explored; do not translate to human guidance.

Cost at a glance

Typical cycle cost

€20.64

Estimated monthly

€27.52

Protocol style

1-3 week burst

Short burst

Estimate confidence

High confidence

Assumes roughly 3 mg9 mg per cycle, using 1 tracked affiliated listing.

Reflects short anxiolytic/nootropic runs with breaks.

Known Interactions

Caution

Semax

FDA notes limited safety-related information and compounding immunogenicity/impurity concerns for both.

Caution

DSIP

CNS-active peptide combination; limited human safety basis.

Caution

Cerebrolysin

Neuroactive stack with limited direct human interaction evidence.

Caution

NSI-189

CNS-active experimental pairing with uncertain interaction profile.

Frequently Compared

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Hexarelin

Tier B-C

Semax

Tier B-C

DSIP

Tier B

Oxytocin

Tier A

Information provided for educational and research reference only. Not medical advice. Not for diagnosing, treating, curing, or preventing disease. Products referenced are labeled Research Use Only (RUO) by vendors; not for human or veterinary use.

Sources and review notes

  1. Certain Bulk Drug Substances for Use in Compounding that May Present Significant Safety Risks - U.S. Food and Drug Administration - accessed 2026-05-15

    Used for FDA compounding-risk context and peptide safety flags.

  2. The Prohibited List - World Anti-Doping Agency - accessed 2026-05-15

    Used for athlete-facing WADA risk and peptide-class restrictions.

  3. Peptide therapeutics: current status and future directions - PubMed / Nature Reviews Drug Discovery - accessed 2026-05-15

    Used for broad peptide-therapeutics background and evidence framing.

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