Reviewed by the PeptideMind Team · Updated July 15, 2026
Selank Dosage Guide, Side Effects & Legal Status
Selank, approved in Russia (not FDA) for anxiety, offers benzodiazepine-like efficacy without sedation or dependence, plus BDNF-driven memory support.
Chemical Makeup
7
Amino Acids
Selank
Thr
TPosition 1
Lys
KPosition 2
Pro
PPosition 3
Arg
RPosition 4
Pro
PPosition 5
Gly
GPosition 6
Pro
PPosition 7
As seen on
Selank Dosage Guide for Cognitive EnhancementSelank Dosage Calculator
Selank is a lab-made peptide that can help calm anxiety and sharpen focus and memory, usually taken as a nasal spray. It doesn't make you drowsy and isn't habit-forming.
Vial size
5 mg
Bacteriostatic water
Nasal spray - no BAC needed
Dosing
250–500 mcg
Frequency
Daily
Cycle
4–8 weeks
Benefit
Cognitive Enhancement
What is Selank?
Selank is a lab-made peptide developed in Russia and officially approved there to treat generalized anxiety and nervous exhaustion. It works by supporting a calming brain chemical (GABA) and boosting a brain-growth protein (BDNF), producing calming effects similar to anti-anxiety medications like Xanax, but without the sedation, tolerance, or dependency risk. It's used both in clinical settings in Russia and by researchers and biohackers elsewhere interested in its calming and cognitive benefits.
Cognitive
sel
Longevity
Is Selank FDA approved?
Selank is not an FDA-approved drug. It is intended for research purposes only and is not approved for human consumption, diagnostic, or therapeutic use.
Research Use Only
Selank has not been evaluated by the FDA for safety or efficacy in humans.
No Clinical Oversight
Not manufactured under FDA-regulated quality or clinical standards.
Unregulated Sourcing
Purity, dosing, and sourcing are not verified through FDA testing or oversight.
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How Does Selank Work?
It enhances the calming effect of a natural brain chemical (GABA), similar to how anti-anxiety medications work but through a different doorway, while also helping preserve the body's own natural pain-relief molecules and raising a brain-growth protein (BDNF). It further supports mood, focus, and learning by adjusting the levels of other key brain chemicals, without the dependency risk tied to anti-anxiety drugs.
Enhances GABA
Boosts a calming brain chemical through a different doorway than anti-anxiety drugs.
Preserves natural molecules
Helps preserve the body's own pain-relief molecules and raises BDNF.
Supports mood without dependency
Adjusts other brain chemicals to support mood and focus, without dependency risk.
Selank Targeted areas
How to reconstitute Selank
View guideThe materials you'll need and step-by-step instructions for safely mixing Selank with bacteriostatic water.
Materials needed
Your Selank vial (lyophilized)
Alcohol swabs
Bacteriostatic sterile water
3 mL syringes (Luer Lock tip)
25G or 27G needles (Luer Lock). Other gauges may also be acceptable.
Sharps container (optional)
Remove the caps
Sanitize the rubber stoppers
Attach the needle
Draw the bac water
Pull back on the plunger to draw your desired volume of bacteriostatic water. If you overfill, just push the excess back in until you reach the right marker on the syringe.
Insert the needle into the Selank vial
With the bac water in your syringe, insert the needle into the Selank vial at a slight angle to avoid pressure buildup.
Release the water gently
Let the water run gently down the side of the vial. Don't inject it forcefully.
Swirl to dissolve
Avoid shaking. Gently swirl, flip, and roll the vial to dissolve the powder.
Check for full dissolution
Cap, dispose, and store
How to Store Selank
Freeze the dry powder for up to two years; it can handle room temperature for a few weeks. Once mixed with liquid, refrigerate for a few days, and don't freeze it once mixed.
Lyophilized Storage
-20°C, stable up to 24 months; up to 3 weeks at room temperature.
Reconstituted Storage
2–8°C for 2–7 days.
Handling Notes
Do not freeze the reconstituted solution.
What Are the Benefits of Selank?
What research says it may help with, and how it works in the body.
anxiety
In clinical trials, it reduced anxiety symptoms about as well as common anti-anxiety medications, but without making people drowsy or causing memory loss.
Research suggests it can help in treating post-traumatic stress disorder (PTSD).
It reduces the anxious dread people feel before a stressful event, as well as stress tied to performing under pressure.
cognitive
It helps the brain lock in new memories and improves the ability to learn.
It increases a protein that helps brain cells grow and survive (BDNF), supporting brain health over the long term.
It helps people stay focused for longer during mentally demanding tasks.
immune
It has shown activity against the flu virus, herpes virus, and cytomegalovirus in research.
It adjusts which inflammation-related genes are turned on or off in the body.
It helps keep the immune system in balance by regulating the signaling molecules (cytokines) immune cells use to communicate.
What Are the Side Effects of Selank?
Who should avoid it, warning signs to watch for, and what to know before combining it with other compounds.
Who Should Avoid It
Known peptide allergies
Pregnancy or breastfeeding
Consult healthcare provider with multiple psychiatric medications
Stop Right Away If You Notice
Severe allergic reactions (rash, breathing difficulty, swelling)
Persistent injection site reactions or infection signs
Unusual mood changes or increased anxiety
Severe headaches or neurological symptoms
Contaminated product signs (unusual smell, cloudiness)
Unexplained fatigue or cognitive impairment
Skin reactions or immune hypersensitivity
Milder Signs to Watch For
How Long Should a Selank Cycle Last?
This breaks down how long a typical Selank cycle runs and what research suggests happens at each stage. Research shows that staying on a peptide continuously, without a break, may make it less effective over time.
That's why most research protocols build in a break between cycles, often called a washout period, to let the body reset before starting again.
- Week 0-0
- Mild anxiety reduction begins
- Week 0-0
- Improved mental clarity and focus
- Week 0-0
- Enhanced stress resilience and emotional stability
- Week 0-0
- Peak cognitive enhancement effects
- Week 0-0
- Sustained benefits for several days
Cheat Sheets Featuring Selank
See how Selank fits into a broader research stack with these free downloadable cheat sheets. Each one includes reference dose ranges, dosing frequency, and half-life for every peptide it covers. For research purposes only.
Selank Research References
It is an approved compound
Selank
Selank is an approved compound
Rat frontal cortex study at 300mcg/kg showed modulation of 45 genes involved in neurotransmission; GABAergic mechanism confirmed.
2016
Human subjects showed significant anxiolytic and mild nootropic effects lasting up to one week post-administration.
2008
Rat hippocampus study at 250-500mcg/kg showed 30% increase in hippocampal BDNF levels.
2010
Significant activation of learning processes in subjects with poor initial learning.
2007
Frequently Asked Questions About Selank
Straight answers on reconstitution, dosing, and safety, everything you need to research with confidence. For research reference only.