Comparison
Cerebrolysin vs. Bremelanotide
Two peptides side-by-side — identity, evidence base, legal status and known adverse events.
Identity
Category
Research other
Research other
CAS no.
96889-70-6
189691-06-3
Molecular weight
no data
1025.18 g/mol
Half-life
no data
2.7 h
Sequence
no data
Ac-Nle-c[Asp-His-D-Phe-Arg-Trp-Lys]-OHMechanism of action
Cerebrolysin
Cerebrolysin is a mixture of low-molecular-weight peptides (predominantly below 10 kDa) and free amino acids obtained by enzymatic cleavage of lipid-free porcine brain proteins. The manufacturer and preclinical literature describe a neurotrophic and neuroprotective mode of action said to mimic endogenous neurotrophic factors; cell and animal models have reported effects on neuronal survival, synaptogenesis and anti-apoptotic signalling (including PI3K/Akt). Because it is a complex, incompletely characterised mixture, the precise mechanism in humans remains unclear.
Bremelanotide
Bremelanotide is a cyclic peptide that binds non-selectively to melanocortin receptors (MC1R through MC5R) — with highest affinity at MC4R in the central nervous system. The precise role of MC4R activation in sexual behaviour is not fully understood; animal data show effects on hypothalamic circuits. Peripheral effects (blood pressure, hyperpigmentation) are attributed to MC1R/MC2R.
Evidence base
Highest evidence
Human RCT
Human RCT
Studies
4
5
of which in humans
4
5
Effects recorded
4
3
Open conflicts
1
1
Documented adverse events
1
2
Legal status
Full entries
Frequently asked questions
- What is the difference between Cerebrolysin and Bremelanotide?
- Cerebrolysin is classified as "Research other", while Bremelanotide is classified as "Research other". Cerebrolysin: Cerebrolysin (FPF-1070) is not a single peptide but a porcine-brain-derived preparation of low-molecular-weight peptides and free amino acids, produced by standardised enzymatic proteolysis. It is approved in several countries (including Austria, Russia and parts of Asia) for stroke, dementia and traumatic brain injury, but is not FDA-approved in the United States and not centrally approved by the EMA. Its efficacy is contested: Cochrane systematic reviews found no convincing benefit and flagged possible harm signals. Bremelanotide: Synthetic cyclic heptapeptide acting as a non-selective melanocortin-receptor agonist. FDA-approved in 2019 as Vyleesi for hypoactive sexual desire disorder (HSDD) in pre-menopausal women. This page contrasts both neutrally and source-based — with no usage or dosing recommendation.
- Which peptide is better supported by science, Cerebrolysin or Bremelanotide?
- The highest available evidence level is "Human RCT" for Cerebrolysin and "Human RCT" for Bremelanotide. A higher evidence level means more robust data, but says nothing about suitability for an individual. The full body of evidence is on each peptide's own page.
- What is the legal status of Cerebrolysin and Bremelanotide in Germany and the United States?
- Germany: Cerebrolysin — Unclear, Bremelanotide — Unapproved. United States: Cerebrolysin — Unapproved, Bremelanotide — Prescription. These are factual summaries with source and review date on the individual pages.