Cognitive
Cerebrolysin
Longevity
23
Amino acids
Molecular weight
Blend
Type
Cerebrolysin is a porcine-derived neuropeptide preparation containing hundreds of bioactive peptide fragments and free amino acids that cross the blood-brain barrier. It mimics the activity of endogenous neurotrophic factors including BDNF, NGF, GDNF, and CNTF to support neurogenesis, neuroplasticity, and neuroprotection. Approved in over 45 countries for stroke, traumatic brain injury, and dementia, it is used clinically and increasingly in biohacking contexts for cognitive enhancement.
Top researched benefits
Overview of Cerebrolysin
Cerebrolysin's small peptide fragments cross the blood-brain barrier and bind to neurotrophic factor receptors, mimicking the signaling of BDNF, NGF, GDNF, and CNTF to promote neurogenesis, synaptic plasticity, and neuronal survival while reducing apoptotic cascades and neuroinflammation.
cognitive
- Meta-analyses show modest cognitive improvements, though clinical significance remains debated.
- Multiple RCTs demonstrate significant ADAS-cog and CIBIC+ improvements.
- Large meta-analysis shows significant NIHSS improvements; other studies found no functional benefit.
neuroprotection
- Largest meta-analysis (1,879 patients) shows NIHSS benefits; independent analysis found no mRS improvement.
- Multiple trials including CAPTAIN series confirm GCS/GOS improvements.
- Pilot trial shows promising 6-month outcomes; requires larger confirmatory studies.
recovery
- Some studies show enhanced recovery; results vary significantly between trials.
- Early administration within 72 hours shows better outcomes than delayed treatment.
Typical Dose
5 mL (~1076 mg) per injection
Frequency
once daily
Cycle Duration
20 days on, 4–8 weeks off
Storage
Unopened vials: refrigerated at 2–8°C; do not freeze. Once opened, use within 24 hours. Post-reconstitution (research vials): refrigerate at 2–8°C and use within 7 days, protected from light.
Chemical Makeup
Key benefits
Accelerates neurological recovery after traumatic brain injury by upregulating neurotrophic signaling and reducing apoptosis at injury sites
Improves cognitive function and global clinical status in mild-to-moderate Alzheimer's disease, with effects demonstrated across multiple placebo-controlled trials
Enhances neuroplasticity and synaptic connectivity through BDNF- and NGF-mimicking peptide fragments that promote long-term potentiation
Supports stroke rehabilitation by reducing ischemic neuronal damage and facilitating functional recovery of affected brain regions
Community interest
This peptide is still gaining traction in the community.
Neuropeptide Mixture | Cognitive & Neurological Recovery
This overview is informational and based on aggregated descriptions from studies and user reports.
Was it helpful?YesNoCerebrolysin Molecular Information
View the scientifc details of Cerebrolysin.
23
Amino Acids
Cerebrolysin
Asx
Asx
Position 1
Ile
Ile
Position 2
Pyl
Pyl
Position 3
Ala
Ala
Position 4
Cys
Cys
Position 5
Thr
Thr
Position 6
Ile
Ile
Position 7
Val
Val
Position 8
Glu
Glu
Position 9
Pro
Pro
Position 10
Glu
Glu
Position 11
Pro
Pro
Position 12
Thr
Thr
Position 13
Ile
Ile
Position 14
Asp
Asp
Position 15
Glu
Glu
Position 16
Met
Met
Position 17
Ile
Ile
Position 18
?
?
Position 19
Thr
Thr
Position 20
Sec
Sec
Position 21
Arg
Arg
Position 22
Glu
Glu
Position 23
Molecular Weight
10000DaChain Length
23Amino AcidsType
BlendCerebrolysin Protocols
Cerebrolysin is supplied as a ready-to-use amber solution requiring no reconstitution; clinical use favors IV infusion for doses above 5 mL while IM injection is used for lower-dose cognitive enhancement cycles. IV infusion delivers the neurotrophic peptide mixture directly into circulation for acute neurological conditions such as stroke and TBI.
| Goal | Dosage | Frequency | Route |
|---|---|---|---|
| Acute Ischemic Stroke | 30 | 1 day range | IV infusion |
| Traumatic Brain Injury (TBI) | 30 | 1 day range | IV infusion |
| Vascular Dementia | 20 | 1 day range | IV infusion |
| Alzheimer's Disease | 20 | 1 day range | IV infusion |
| Cognitive Enhancement (Nootropic) | 5 | 1 day range | IM (gluteal or deltoid) |
| General Neuroprotection / Maintenance | 10 | 1 day range | IM or slow IV push |
Reconstitution Instructions
Materials needed:
Steps to reconstitute
- Inspect the glass ampule — solution must be clear and amber-colored; discard if cloudy or discolored
- For IV infusion doses of 10–50 mL: dilute the prescribed volume in 100–250 mL of 0.9% sodium chloride or Ringer's solution
- Do not mix Cerebrolysin with solutions containing calcium or magnesium
- Administer IV infusion over 15–60 minutes using a standard IV drip set
- For IM doses up to 5 mL: draw the solution into a 5–10 mL syringe and inject undiluted into the gluteal or deltoid muscle using a 21–23 gauge needle
- For IM volumes between 5 and 10 mL: split the total dose equally between two separate injection sites
- For direct slow IV push (up to 10 mL): inject over at least 3 minutes
- Administer in the morning to align with circadian rhythms when using for cognitive enhancement
- Store unopened ampules at room temperature (15–25°C); do not refrigerate or freeze; use opened ampules immediately
Cerebrolysin Cycle
The Cerebrolysin Cycle section explains how long a typical cycle lasts and what to expect during each phase. Over time, your body can become less responsive with continuous use.
Taking breaks between cycles may help maintain effectiveness and support better overall results.
- Week 1-2
- Initial neuroprotective effects; possible mild side effects (dizziness, agitation)
- Week 2-4
- Neurological improvements become apparent; cognitive function may begin to improve
- Week 4-8
- Continued recovery; motor function improvements in stroke/TBI patients
- Week 8-12
- Sustained benefits; cognitive enhancement plateaus in chronic conditions
Dosing tools
CerebrolysinBlend Dosage Calculator
Calculate blended peptide doses with our visual syringe guide.
Volume of bacteriostatic water you add to reconstitute the powder. Use BAC water for preservation.
1 mL
2 mL
3 mL
5 mL
Custom
Blend Composition
Total: 0.0 mg
The compound you want to dose by. Results will be calculated based on this compound.
The dose of the anchor compound you want per administration, in mcg or mg.
Conversion: 1,000 mcg = 1 mg
Results
Concentration
—
Doses per vial
—
Total blend to inject
—
You'll get:
1mL / 100 units
< 1 units
0.000 mL
Dosing Guidance
Recommended Schedule
once daily
Supply Duration
This vial provides 0 doses (0-day supply at 250 mcg daily)
Side effects
Contraindications
Epilepsy
Severe renal insufficiency
History of severe allergic reactions to porcine products
Stop signs
Severe allergic reactions (anaphylaxis, severe rash)
New onset seizure activity
Significant cardiovascular events during administration
Severe renal dysfunction or worsening kidney function
Bad signs
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Frequently asked questions
What is a peptide dosage calculator?
A peptide dosage calculator is a free tool that converts your vial size, bacteriostatic water volume, and target dose into an exact syringe draw volume. Instead of doing the reconstitution math by hand, you enter three inputs and instantly get the concentration of your solution and how many milliliters or syringeunits to draw. This calculator works for single peptide compounds and multi-peptide blends.
How do I calculate peptide dosage from a vial?
To calculate your peptide dose, divide the total peptide content of your vial in micrograms by the volume of bacteriostatic water you added in milliliters. This gives you your solution concentration in mcg/mL. Then divide your target dose by that concentration to get your draw volume. For example, a 5mg (5,000 mcg) vial reconstituted with 2mL of BAC water gives a concentration of 2,500 mcg/mL. A 250 mcg dose would require drawing 0.1mL. This calculator automates all of those steps instantly.
How much Bacteriostatic water should I add to a peptide vial?
Most people add 2mL to 3mL of bacteriostatic water per vial, but the right amount depends on the dose you want to draw and the syringe size you are using. Adding 1mL to a 5mg vial gives you a concentration of 5,000 mcg/mL, making each dose very small in volume. Adding 2mL gives you 2,500 mcg/mL, which is easier to measure on a standard insulin syringe. A general guideline is to choose a volume that puts your typical dose somewhere between 10 and 30 units on a U-100 syringe. Use the calculator above to test different water volumes and find what works for your dose.
How are peptides different from proteins?
Both are made of amino acids, but peptides are much smaller than proteins. Because of their tiny size, peptides can act like tiny messengers in the body, sending specific signals to your cells to tell them exactly what to do.
CerebrolysinResearch References
Cerebrolysin is an approved compound
Cerebrolysin
Cerebrolysin is an approved compound
CAPTAIN II Trial - Traumatic Brain Injury
Randomized controlled trial demonstrating efficacy and safety in moderate-severe TBI with improved GCS and GOS scores.
2020
Nine-Trial Stroke Meta-Analysis - Positive Results
Largest positive meta-analysis showing significant neurological improvements in 1,879 stroke patients with NNT=7.7.
2017
Conflicting Stroke Meta-Analysis - Neutral Results
Independent meta-analysis of 1,779 patients found no significant benefits in functional outcomes (mRS/BI).
2017
TBI Systematic Review - Positive Outcomes
Analysis of 8,749 TBI patients across 10 studies confirms statistically significant GCS/GOS improvements.
2023
Calculate peptide dosages
Learning how to calculate a peptide dose? Use our beginner-friendly peptide dosage, blend, and accumulation calculators. Enter vial size, reconstitution volume, and target dose to get exact draw volumes instantly. No guesswork, just clear guidance that helps prevent common mistakes.
