Cerebrolysin vs Selank

A detailed comparison to help you understand the differences and choose the right peptide for your research goals.

Cerebrolysin

Cerebrolysin is a mixture of low-molecular-weight neuropeptides and free amino acids derived from purified pig brain proteins. It is approved in many countries for stroke, traumatic brain injury, and dementia.

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Selank

Selank is a synthetic peptide derived from the naturally occurring immunomodulatory peptide tuftsin. Developed in Russia for anxiety and cognitive enhancement.

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Side-by-Side Comparison

Aspect	Cerebrolysin	Selank
Dose Range	2150 mg–4300 mg	300 mcg–900 mcg
Frequency	1x daily	2x daily
Cycle Length	1–2 weeks	2–4 weeks
Route	intramuscular	intranasal
Mechanism	Contains multiple neurotrophic factors that promote neuroplasticity, reduce neuronal apoptosis, and support synaptic function. Has both neurotrophic and neuroprotective properties.	Modulates the expression of brain-derived neurotrophic factor (BDNF) and affects serotonin and norepinephrine systems. Has immunomodulatory and anxiolytic properties.
Typical Dosage	Clinical dosing: 10-30ml IV daily for acute conditions. Research use: 5-10ml IM daily for cognitive enhancement. Treatment courses typically last 10-20 days.	Intranasal administration: 250-500mcg 2-3 times daily. Subcutaneous: 250-500mcg daily.
Administration	Administered via intramuscular or intravenous injection. IV administration is typically used in clinical settings. IM can be used for research purposes.	Most commonly administered intranasally for cognitive effects. Can also be injected subcutaneously.
Side Effects	Generally well-tolerated. May cause dizziness, headache, sweating, or injection site reactions. Rare cases of agitation or confusion.	Generally well-tolerated. Some users report mild fatigue or nasal irritation with intranasal use.
Best For	Recovery & Healing Cognitive Performance	Cognitive Performance