Selank vs Semax UK: The Complete Guide to Cognitive Research Peptides (2025)

Selank and Semax are two of the most prominent cognitive peptides available for scientific research in the UK, trusted by researchers for studies on cognition, stress regulation, anxiety, and neuroprotection. NovaVitality supplies both peptides strictly for laboratory use only.

What is Selank?

Selank is a synthetic heptapeptide derived from tuftsin, a natural immunomodulatory peptide. Published research has explored Selank for:

  • Anxiolytic effects without sedation

  • Stress and mood regulation

  • Cognitive and memory support

  • Modulating immune response

Mechanisms of Action:

  • Modulates GABAergic and serotonergic activity

  • Increases natural enkephalins associated with well-being

What is Semax?

Semax is a synthetic peptide analogue of ACTH (4-7 fragment) studied for neuroprotection and cognitive enhancement. Research highlights:

  • Increases BDNF (Brain-Derived Neurotrophic Factor) in the brain

  • Supports memory, learning, and neuroplasticity

  • Boosts neurotransmitter and cerebral blood flow activity

Selank vs Semax: Research Comparison

Feature Selank Semax
Main Focus Anxiety, stress, mood, cognition Memory, neuroprotection, brain repair
Mechanism GABA & serotonin modulation BDNF upregulation, neurotrophic activity
Key Use Cases Stress & emotional resilience Cognitive performance, neural recovery
 
 

Selank is often chosen for research relating to stress, anxiety, and emotional balance, whereas Semax is prioritized in protocols focusing on memory, neuroplasticity, and stroke recovery.

Intranasal Administration in Research

Both peptides are commonly administered intranasally in published studies to:

  • Efficiently deliver compounds past the blood-brain barrier

  • Achieve faster bioavailability (often in 15–30 minutes)

  • Enhance consistency in cognitive and neurological research outcomes

Note: All NovaVitality peptides are strictly for lawful research use, not for human consumption.

Research-Backed Protocols

Selank research: 150–750 mcg, 1–2 times daily
Semax research: 200–1000 mcg, 1–2 times daily
Cyclic protocols (e.g., 5 days on, 2 days off) are routinely followed in research to maintain consistent results.
Protocol details reflect published studies—not usage advice.

Safety in Published Studies

Selank: Well-tolerated, rare mild nasal irritation
Semax: Well-tolerated, rare mild congestion or headache
Neither is associated with tolerance or dependency in research contexts.

Ordering from NovaVitality

  • Best prices

  • Next-day UK tracked delivery

FAQs

Are Selank and Semax legal in the UK?
Yes, for laboratory research only—not as medicines or for human use.

Can the two peptides be researched together?
Some protocols combine them for balanced cognitive and anxiolytic effects in research.

How should peptides be stored?
Store reconstituted vials at 2–8°C, use within 30 days.

Conclusion

Selank and Semax are trusted by UK researchers for advanced cognitive and neurological studies. NovaVitality supplies both, fully verified and distinctly labelled for laboratory use, with secure ordering and next-day UK delivery.

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