Cerebrolysin
ser-EE-bro-LY-sin
A brain-derived peptide mixture used globally for cognitive recovery — contains neurotrophic factors that support brain repair.
Last reviewed: April 2026
What It Does
Cerebrolysin is a mixture of low-molecular-weight peptides and amino acids derived from pig brain tissue. It contains neurotrophic factors similar to BDNF and NGF that support neuronal growth, synaptic plasticity, and brain repair. It's approved in over 40 countries for stroke recovery and cognitive decline, though not in the US.
Why People Take It
How It's Administered
Intramuscular Injection
IM injection, typically administered in clinical settings
Frequency
Daily for 10-20 day courses
Pain Level
●●○ Moderate
Self-Administered
Clinic only
Typical Range
5mL – 10mL daily
What To Expect
Week 1–2
Cognitive improvements may begin during treatment course.
Month 1
Memory and focus improvements noted in many users.
Courses repeated
Benefits accumulate over multiple treatment courses.
Side Effects
Overall: Mild
Common (1–10%)
Injection site pain
IM injections can be uncomfortable.
Uncommon (0.1–1%)
Headache
Usually mild and transient.
Dizziness
Brief dizziness after injection.
Who Should NOT Take This
• Epilepsy (may lower seizure threshold)
• Severe renal impairment
• Allergy to porcine products
Drug Interactions
• MAOIs — theoretical interaction
• Antidepressants — monitor for enhanced effects
Pregnancy: Not recommended during pregnancy.
Clinical Details
Compare With Similar Peptides
Cerebrolysin has the most clinical trial data of any cognitive peptide. Dihexa is more potent per-dose but has less human data.
Dihexa
A potent cognitive peptide that promotes new brain connections — millions of times more potent than BDNF at stimulating neural growth.
Semax
A synthetic brain peptide derived from ACTH that enhances focus, memory, and neuroprotection — developed in Russia.
Selank
A Russian-developed synthetic peptide that reduces anxiety and supports immune function — based on the body's natural tuftsin molecule.
Frequently Asked Questions
We don't currently offer this peptide — but we have protocols for similar goals.
Coming Soon →This is a compounded medication prescribed off-label. It has not been FDA-approved for the uses described. All prescribing decisions are made by your independent licensed provider.