Selank Dosage Guide: How Much Should You Take? (2026)

Key Takeaways

• Standard Dosage Range: Selank is typically administered in doses ranging from 250 mcg to 3 mg, depending on the form and therapeutic goal.
• Administration Method: Commonly administered intranasally due to its ease and effectiveness, though subcutaneous and intramuscular routes are also used.
• Typical Cycle Length: Selank is often used in cycles of 2 to 4 weeks, with some protocols extending to 6 weeks.
• Regulatory Status: Selank is not FDA-approved and is available for research purposes only.
• Medical Supervision: It's crucial to use Selank under the guidance of a healthcare provider, considering its research-only status and potential side effects.

How Selank Works in the Body

Selank is a synthetic peptide derived from the natural tuftsin sequence, primarily used for neuroimmune modulation. It modulates GABAergic transmission and influences gene expression associated with neuropeptide signaling. This mechanism of action is crucial for its anxiolytic and cognitive-enhancing properties. Selank's receptor binding affinity and bioavailability significantly influence its dosing protocols. The peptide has a relatively short half-life, necessitating multiple daily administrations for sustained effects.

A study published in Bulletin of Experimental Biology and Medicine (PMID 36322304) demonstrated Selank's ability to attenuate morphine withdrawal symptoms in rats, highlighting its potential in modulating neurochemical pathways. Another study (PMID 31625062) revealed that Selank could protect against ethanol-induced memory impairment by regulating BDNF content in the hippocampus and prefrontal cortex, further illustrating its neuroprotective effects.

Standard Selank Dosage Ranges (By Form)

Intranasal Administration

• Dosage Range: 250 mcg to 1 mg per administration
• Frequency: 2-3 times daily
• Bioavailability: High due to direct absorption into the bloodstream via nasal mucosa
• Commonality: Most popular due to ease of use and rapid onset of effects

Subcutaneous and Intramuscular Administration

• Dosage Range: 0.3 mg to 3 mg per injection
• Frequency: Once daily or every other day
• Bioavailability: Moderate, with a slower onset compared to intranasal
• Use Case: Less common but used for more controlled dosing in clinical settings

Intranasal administration is favored for its high bioavailability and convenience, making it the preferred method for most users. Subcutaneous and intramuscular routes are reserved for more specific clinical scenarios where precise dosing is required.

Selank Dosage by Use Case

Anxiety Reduction

• Typical Dosage Range: 250 mcg to 1 mg intranasally, 2-3 times daily
• Administration Method: Intranasal
• Cycle Length: 2-4 weeks
• Clinical Reference: Studies suggest Selank's anxiolytic effects are comparable to benzodiazepines (PMID 28280289).
• Practical Guidance: Many clinics recommend starting at the lower end of the dosage range and adjusting based on response.

Cognitive Enhancement

• Typical Dosage Range: 500 mcg to 2 mg intranasally, 2 times daily
• Administration Method: Intranasal
• Cycle Length: 4-6 weeks
• Clinical Reference: Selank has shown cognitive-stimulating effects in animal models (PMID 31625062).
• Practical Guidance: Users often report improved focus and memory within the first few weeks.

Mood Stabilization

• Typical Dosage Range: 0.3 mg to 1 mg intranasally, 2-3 times daily
• Administration Method: Intranasal
• Cycle Length: 3-4 weeks
• Clinical Reference: Selank's role in mood disorders has been explored in various preclinical studies (PMID 30255741).
• Practical Guidance: Dosage adjustments may be necessary based on individual response.

How Long Should You Take Selank?

Selank is typically administered in cycles of 2 to 6 weeks. Initial effects are often noticed within the first week, with more pronounced benefits emerging by weeks 2 to 4. Some protocols suggest tapering off after 6 weeks to prevent potential tolerance. Discontinuation generally does not result in withdrawal symptoms, but gradual cessation is advised to maintain benefits.

Administration Protocol: How to Take Selank

Intranasal Administration

1. Preparation: Ensure the nasal spray or dropper is clean and properly assembled.
2. Administration: Tilt your head slightly back and administer the recommended dose into each nostril.
3. Post-Administration: Remain in a seated position for a few minutes to ensure absorption.

Storage Requirements

• Temperature: Store at 2-8°C (35-46°F).
• Light Sensitivity: Protect from direct sunlight.
• Stability: Use reconstituted solutions within 30 days.

Stacking Selank for Better Results

Selank and Semax

• Combination: Often stacked with Semax for enhanced cognitive effects.
• Dosing Synergy: Selank (250 mcg to 1 mg) and Semax (100 mcg to 500 mcg) intranasally, 2-3 times daily.
• Protocols: Commonly used in protocols aimed at cognitive enhancement and mood stabilization.

Selank and BPC-157

• Combination: Used with BPC-157 for neuroprotection and recovery.
• Dosing Synergy: Selank (500 mcg to 2 mg) and BPC-157 (200 mcg to 500 mcg) subcutaneously, once daily.
• Protocols: Employed in recovery and stress management protocols.

Factors That Affect Your Selank Dosage

Individual factors such as body weight, age, treatment goals, and overall health can influence Selank dosing. Providers often adjust doses based on these parameters to optimize efficacy and minimize side effects. For instance, individuals with compromised liver or kidney function may require lower doses.

Common Dosing Mistakes to Avoid

1. Dosing Too High/Too Low: Start with the lowest effective dose and adjust based on response.
2. Inconsistent Timing: Maintain a consistent dosing schedule to ensure stable blood levels.
3. Wrong Injection Site: Use appropriate sites for subcutaneous or intramuscular injections to enhance absorption.
4. Not Accounting for Regulatory Status: Remember that Selank is for research purposes only and should be used under medical supervision.
5. Poor Storage/Handling: Follow storage guidelines to maintain peptide integrity.

What the Evidence Does Not Show

While preclinical studies suggest promising effects of Selank, there is a lack of long-term safety data and human trials. The dose-response relationship remains underexplored, and more research is needed to fully understand its therapeutic potential.

FAQ — Your Top Selank Dosage Questions Answered

Best time of day to take it?

Selank can be administered at any time, but consistent timing each day is recommended to maintain stable effects.

What if you miss a dose?

If you miss a dose, take it as soon as you remember unless it's close to the next scheduled dose. Do not double up.

Can men and women use the same dose?

Yes, Selank dosing is generally similar for both men and women, but individual adjustments may be necessary.

Can you stack it with other peptides?

Yes, Selank is often stacked with other peptides like Semax and BPC-157 for synergistic effects.

How long until you see results?

Many users report noticing effects within the first week, with more significant benefits by weeks 2 to 4.

Do you need to cycle off?

Cycling off after 4-6 weeks is recommended to prevent tolerance and maintain efficacy.

Is a loading dose needed?

A loading dose is not typically required for Selank.

How to adjust dose if side effects occur?

Reduce the dose or frequency if side effects occur, and consult a healthcare provider for guidance.

Conclusion — Finding the Right Dosage for You

Determining the optimal Selank dosage involves considering individual factors and therapeutic goals. While standard ranges provide a starting point, personalized adjustments under medical supervision are crucial. For more information on peptide therapy, visit our peptide encyclopedia and use our clinic finder to locate a qualified provider near you.

Medical Disclaimer: This content is for informational purposes only and does not constitute medical advice. Dosage information is compiled from published research and clinical protocols. Consult a licensed healthcare provider before starting any peptide therapy. Use our clinic finder to locate a qualified provider near you.