Vesugen Dosage Calculator (KED Tripeptide)
A synthetic tripeptide from the Khavinson “peptide bioregulator” programme. The weakest evidence base of anything on this site.
Written by Kashif Khan, who builds and maintains this site and is not a clinician. Every figure links to its primary source.
Not approved; never evaluated by the FDA
Vesugen is on no FDA compounding list — not Category 1, 2 or 3. It was never nominated, so no FDA evaluation has ever taken place.
No approved human dose exists for this compound in any country. The figures below are the doses used in named published studies, reproduced for reference only. Doses given to rats or mice do not convert to a human dose. The FDA has stated that labelling a product “research use only” or “not for human consumption” does not change its legal status when the seller's own marketing shows it is intended for people.
Key facts
- Molecular weight
- 390.39 Da
- Half-life
- Not published. No accessible human pharmacokinetic study reports one, so any specific figure quoted elsewhere has no primary source behind it.
- Also sold as
- KED, Lys-Glu-Asp
Published doses
How good is the evidence?
The weakest evidence on this entire site: roughly 27 indexed publications, essentially all from investigators affiliated with the originating institute, mostly in-vitro endothelial work plus small Russian-language clinical reports that do not meet modern randomised-trial methodology, with no independent replication of any core claim. No dose from a controlled trial meeting modern standards exists, so none is reproduced here.
What a search of the literature actually returns
It is worth stating what the evidentiary gap here consists of, rather than leaving it as a vague warning. The indexed literature runs to roughly 27 publications. Essentially all of them come from investigators affiliated with the originating institute. The bulk is in-vitro endothelial work, supplemented by small Russian-language clinical reports that do not meet modern randomised-trial methodology. No core claim has been independently replicated.
That is a different situation from a compound that has been tested and found wanting, and different again from one that is simply new. It is a body of work that has never been subjected to the step — independent replication — that turns a result into a finding.
Never nominated, so never evaluated
Vesugen appears on no FDA compounding list — not Category 1, not Category 2, not Category 3. The reason is procedural rather than substantive: the lists are populated by nomination, and nobody nominated it. No FDA evaluation of this compound has ever taken place.
Absence from the lists therefore carries no information about safety in either direction. It is frequently presented as though it did, usually by vendors pointing out that the compound has not been restricted. Nothing has been concluded about it at all, which is the least informative regulatory position a substance can be in.
Common questions
Sources
Every number on this page comes from one of the documents below. Where no reliable source exists, the page says so instead of filling the gap.
- RegulatorFDA· 2026-05-14Bulk Drug Substances Nominated for Use in Compounding Under Section 503A
- ReferenceNIH / National Center for Biotechnology InformationPubChem compound records (molecular weights and formulae)
- ReferenceNIH / National Library of MedicinePubMed — biomedical literature database
- RegulatorFDABulk Drug Substances Used in Compounding Under Section 503A of the FD&C Act