peptidedosing.eu
Find a peptide
Calm, focus & sleep

Cerebrolysin

A pig-brain peptide mix used after strokes in some countries.

StatusPrescription drug in some countries; not approved in the US or UK
How well studied in peopleTested in clinical trials
Experts quoted2 experts

iNot medical advice. We don’t recommend any dose. Every dose below is a quote from the person named, describing their views or their own use. Cerebrolysin is a prescription medicine in a number of countries in Europe and Asia, but it is not approved in the US or UK. It is a pig-derived product given by injection or drip; only use it under a doctor’s care.

What experts say about dosing

3 statements from 2 people. Each one is word for word: we add punctuation only and mark cuts with […]. The chips repeat the exact words used.

Dr Edwin LeeEndocrinologist; founder of the Institute for Hormonal Balance (Orlando)

Slides for doctors: “experimental dosing” of 1 ml

Dose
“1 ml”
How often
“once a week to 2-3 times a week”
How taken
“IM”

“EXPERIMENTAL DOSING FOR OPTIMAL BRAIN FUNCTION • Cerebrolysin comes in a 10 ml ampule, inject 1 ml IM once a week to 2-3 times a week. • The rest of the 9 ml draw up with a needle and syringe with use a filter. Store in a sterile vial (amber vial) for multiuse”

Read the source (at p. 25)Neuro regenerative Peptides, conference slides by Edwin Lee MD (agemed.org, PDF) · upload date not confirmed

Context: His own heading calls this “experimental”. IM means injected into a muscle. From his conference slides for doctors (Age Management Medicine Group); the slides are undated.

Slides for doctors: the study doses and his “optional dosing”

Dose
“30 ml IV infusion, or 1 ml (215.2 mg) IM”
How often
“IV 2-3 times a week; IM 3-5 times a week”
How taken
“IV infusion or IM”

“• Dosing used in studies were 10- 30 ml/ day IV 5 days a week. • Concentration is 215.2 mg/ml • Comes in 10 ml ampules • Optional dosing • Infuse 30 ml (6456 mg) in 250 cc of normal saline over 1 hour 2-3 times a week. Recommend using a filter • 1 ml (215.2 mg) IM shot 3-5 times a week”

Read the source (at p. 24)Neuro regenerative Peptides, conference slides by Edwin Lee MD (agemed.org, PDF) · upload date not confirmed

Context: The first line summarises the hospital studies (given by drip into a vein, IV); “optional dosing” is his own suggestion. An IV infusion is given in a clinic. From his conference slides for doctors (Age Management Medicine Group); the slides are undated.

Bryan JohnsonEntrepreneur; Blueprint longevity project

Own use: daily for three months, no measurable effect

Dose
“5 mL”
How often
“daily”
How long
“three months”
How taken
“intramuscularly”

“Cerebrolysin Trialed daily 5 mL cerebrolysin injections intramuscularly for cognitive benefits for three months. No effect measured. This does not mean it didn’t help or hurt, we were just unable to identify a biomarker that could inform.”

Read the sourceBryan’s Protocol (protocol.bryanjohnson.com) · upload date not confirmed

Context: Own use, from the “Other Advanced Therapies” section of his protocol page. The page does not date the trial.

What experts say about safety

0 statements from 0 people about risks and how strong the evidence is.

No expert safety statements are listed yet.

Go deeper

What the research used

Context, not a dosing guide. The trials below gave Cerebrolysin by drip into a vein, usually 10 to 50 ml a day for a few weeks, to people after a stroke or brain injury or with Alzheimer’s disease. Many were sponsored by the manufacturer. None tested it as a brain booster in healthy people.

Human studies

StudyStudied inWhat the study usedWhat it found
Gauthier et al., 2015, Dement Geriatr Cogn DisordPubMed 25832905Meta-analysis of 6 trials in mild-to-moderate Alzheimer’s diseaseDaily infusions by vein, compared with placeboSmall improvements in thinking and overall clinical picture
Poon et al., 2021, Neurol Sci (CAPTAIN trial series)PubMed 33620612185 people after moderate to severe brain injuryDaily infusions by vein vs placeboA small-to-medium benefit on combined recovery scores at 30 and 90 days
What we don’t know yet
  • The trials were in hospital patients, mostly with infusions into a vein, not home injections.
  • No good evidence that it improves thinking in healthy people; Bryan Johnson measured no effect.
  • It is made from animal tissue, so allergic reactions are possible.
  • Products sold online as research peptides are unregulated, so identity, purity and dose accuracy vary.
Common questions

How do the expert doses compare?

Dr Edwin Lee’s slides for doctors suggest 1 ml injected into a muscle, from once a week up to 3-5 times a week, or 30 ml infusions in a clinic. Bryan Johnson injected 5 mL daily for three months and measured no effect.

Is Cerebrolysin a single peptide?

No. It is a mixture of many small peptides and amino acids taken from pig brain.

Why does the protocol section only contain quotes?

We do not write our own dose ranges. The protocol cards show, word for word, what named people have publicly said, with their caveats and a link to the source.

About this page

Word-for-word statements about how Cerebrolysin is used, each with a link to the source. Cerebrolysin is a mix of small peptides made from pig brain. It is a prescription drug in some countries, given in hospital after strokes and brain injuries. The research is listed separately as context.

Also known as
FPF-1070; porcine brain-derived peptide preparation
Type
Mixture of low-molecular-weight peptides and amino acids from pig brain
Last updated
11 Oct 2026

Last reviewed 11 Oct 2026 · Compiled by the Peptide Dosing editorial team · How we check quotes