Selank
Well StudiedTuftsin analog
Selank is a synthetic peptide analog of the immunomodulatory peptide Tuftsin. It has been studied in neuroscience research for its effects on GABAergic system activity and its potential anxiolytic properties in laboratory models. Published research has investigated its effects on monoamine neurotransmitter levels and behavioral responses. RaysunPeptide supplies Selank for qualified research and laboratory applications.
Mechanism of Action
Works through allosteric modulation of GABA-A receptors, serotonin and dopamine system optimization, enkephalin degradation inhibition, IL-6 and cytokine balance regulation, and BDNF upregulation in the hippocampus.
Key Benefits
Molecular Data
Dosing Protocols
| Goal | Dose | Frequency | Route |
|---|---|---|---|
| Mild anxiety relief | 250mcg | 1x daily | SubQ |
| Moderate anxiety/cognitive | 250mcg | 2x daily (morning & evening) | SubQ |
| Intensive anxiety support | 500mcg | 1x daily (divided doses) | SubQ |
| Cognitive enhancement | 250-350mcg | 1x daily (morning) | SubQ |
| PTSD support | 250mcg | 2x daily | SubQ |
| Immune support | 250mcg | 1x daily for 2-4 weeks | SubQ |
Research Indications
Anxiety
Clinical trials show significant reduction in anxiety symptoms comparable to benzodiazepines but without sedation or amnesia.
Research indicates effectiveness in PTSD treatment.
Reduces anticipatory anxiety and performance stress.
Cognitive
Improves memory consolidation and learning capacity.
Enhanced sustained attention during demanding cognitive tasks.
BDNF upregulation supports long-term brain health.
Immune
Balances immune system function through cytokine regulation.
Shows activity against influenza, HSV, and cytomegalovirus.
Modulates inflammatory gene expression.
Peptide Interactions
Enhanced cognitive and anxiolytic effects when combined.
Complementary stress response mechanisms.
Both enhance BDNF via different pathways.
Balanced anxiety relief and cognition enhancement.
Similar GABAergic effects; medical supervision advised.
Can combine for enhanced mood regulation; monitor closely.
Balanced anxiety reduction and wakefulness.
Both affect GABA system; risk of excessive sedation.
What to Expect
Side Effects & Safety
Common (Generally Mild)
- •Minimal side effects - excellent safety profile
- •No sedation or cognitive impairment
- •No tolerance, dependence, or withdrawal
Stop Signs (Seek Medical Attention)
- ⚠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
Contraindications
- ✕Known peptide allergies
- ✕Pregnancy or breastfeeding
- ✕Consult healthcare provider with multiple psychiatric medications
Quality Checklist
Good Signs ✓
- White to off-white lyophilized powder without clumping
- Clear, colorless reconstituted solution
- Clear batch information, purity testing, expiration dates
- Appropriate packaging and cold shipping
Warning Signs !
- Unusual smell or burning sensation may indicate bacterial contamination
- Room temperature shipping of nasal spray
Bad Signs ✕
- Yellowing, clumping, or moisture exposure
- Persistent cloudiness after reconstitution
References
Rat frontal cortex study at 300mcg/kg showed modulation of 45 genes involved in neurotransmission at 1 hour post-administration; confirmed Selank acts as a positive allosteric modulator of GABA-A receptors.
View on PubMed →62 patients with GAD and neurasthenia; anxiolytic effects comparable to medazepam, with additional antiasthenic and psychostimulant effects lasting up to one week post-administration.
View on PubMed →Intranasal Selank regulates BDNF gene expression in the rat hippocampus in vivo, supporting its nootropic and neuroprotective properties.
View on PubMed →Single injection of Selank activated serotonin metabolism in hypothalamus for 30 min to 2 hours and increased memory trace stability over 30 days.
View on PubMed →40 patients with anxiety disorders; combined Selank and phenazepam treatment decreased undesirable side-effects during treatment and after withdrawal.
View on PubMed →FAQs
Can Selank be taken long-term without losing effectiveness, or will I build tolerance?
Selank avoids the tolerance and dependence issues of benzodiazepines, but the file specifically recommends limiting cycles to 2-3 weeks with breaks between them. This suggests potential GABAergic desensitization is possible with continuous use, though not true pharmacological tolerance. Cycling prevents this.
Is intranasal Selank as effective as injection for anxiety?
Yes, potentially more so. Intranasal offers fastest onset (15-30 minutes) with 4-6 hour duration, while injection takes 30-60 minutes but may last longer. Both are effective—choose based on how quickly you need relief. Nasal is better for as-needed anxiety; injection is better for daily protocols.
Will Selank help with PTSD, or is it just for generalized anxiety?
Selank is documented to help PTSD. Research shows effectiveness in PTSD treatment (rated as 'effective'). It modulates stress response through multiple systems (GABA, serotonin, dopamine, BDNF), which addresses trauma-related dysregulation. However, it's typically used alongside proper PTSD therapy, not as sole treatment.
How does Selank's 30% BDNF increase compare to other nootropics?
It's significant. A 30% increase in hippocampal BDNF supports neuroplasticity and long-term potentiation (learning/memory). Semax shows similar effects. Compounds like noopept also increase BDNF, but through different pathways. Selank's unique value is anxiety relief plus BDNF elevation without sedation—a rare combination.
