Description
PrymaLab · Research use only
Preloaded Autoinjector | Prostamax | 3ml Pen | 20mg
Prostamax (Lys-Glu-Asp-Pro) at 0.67% w/v, 20 mg in a preloaded 3 mL pen
Prostamax is the Khavinson tetrapeptide Lys-Glu-Asp-Pro (KEDP), linked by its developers to the prostate. This listing is a preloaded pen whose 3 mL cartridge holds 20 mg of Prostamax in solution, the same amount as the freeze-dried vial. Published work naming Prostamax is limited, comes mostly from one St Petersburg group, and centres on chromatin structure and the idea that short peptides regulate genes.
Specifications
| Property | Value |
|---|---|
| Compound | Prostamax Lys-Glu-Asp-Pro (KEDP); Khavinson prostate peptide bioregulator |
| CAS number | Not assigned |
| Molecular formula | C20H33N5O9 |
| Theoretical mass | 487.5 Da |
| Sequence / structure | H-KEDP-OH (4 residues; free N- and C-termini) |
| Contents | Prostamax: 20 mg per 3 mL pen (0.67% w/v) |
| Form | Sterile aqueous solution in bacteriostatic water (0.9% benzyl alcohol), supplied in a 3 mL glass cartridge inside a preloaded autoinjector pen fitted with a needle |
| Storage, sealed | Store at 2–8 °C in the original carton, protected from light |
| Safety data sheet | PL-SDS-133 |
What is in the pen
The pen contains a 3 mL glass cartridge of sterile aqueous solution with Prostamax at 0.67% w/v, 20 mg per pen. At the certificate’s theoretical mass of 487.5 Da, that is about 41 µmol. The solvent is bacteriostatic water with 0.9% benzyl alcohol as an antimicrobial preservative. The safety data sheet lists no hazard class for the peptide; benzyl alcohol is harmful if swallowed or inhaled, irritates the eyes seriously and may cause an allergic skin reaction.
Store the pen at 2 to 8 °C in its carton, shielded from light, and keep it capped between uses. Freezing is not allowed: a pen whose solution has frozen, discoloured or gone cloudy should be thrown away. The Prostamax 20 mg vial holds the same amount as dry powder, and peptide pen vs vial explains the general differences.
What the research covers
The one experimental paper among these references that names Prostamax measured chromatin in leukocytes from people aged 75 to 881. With four other short peptides, Prostamax activated ribosomal genes and decondensed tightly packed chromatin, and with Epitalon and Livagen it also loosened structural heterochromatin near the centromere of chromosome 11. Epitalon and Livagen went on to change chromosome 9 as well, and Prostamax did not1. The abstract gives no number of donors and no effect sizes. The study came from the programme’s own group and was published in the Bulletin of Experimental Biology and Medicine, which carries Russian research in English. The developers interpret findings like these through a model in which peptides of two to seven residues act on histones, DNA and DNA methylation inside the nucleus2.
Nothing in that work concerns Prostamax in solution. No published study cited here measured how KEDP holds up in bacteriostatic water at 2 to 8 °C, and none used a pen or any preloaded format, so the storage limits for this pen come from its safety data sheet. The Prostamax 20 mg vial page has the full research summary, and the Prostamax guide covers the prostate explant work and the compound’s origins.
How each lot is tested
Every lot is tested in PrymaLab’s own laboratory in Ashland, Kentucky before release: RP-HPLC for purity, LC-MS for identity, Karl Fischer titration for water, LAL for endotoxin and USP <71> for sterility. Published certificates are listed on the results page and can be checked by number and key on the verify page. The certificate covers the peptide lot used to fill the pen, not the finished solution. These are in-house results from PrymaLab Analytical, not an independent test, and the lab is not accredited to ISO 17025. The third-party testing guarantee on this page still applies: if any independent laboratory finds the wrong compound, or less than the stated purity or amount, the order is refunded and the cost of the test is reimbursed.
Frequently asked questions
How does the Prostamax pen compare with the vial?
Both contain 20 mg of the same tetrapeptide. The vial holds it as freeze-dried powder at −20 °C for dissolving in the lab; the pen holds it already dissolved in 3 mL of bacteriostatic water at 0.67% w/v, stored at 2 to 8 °C and never frozen.
What does the certificate cover for the pen?
It covers the Prostamax peptide lot used to fill the pen, not the finished solution in the cartridge. The testing section on this page sets out what certificates report and how to check one by number and key.
Do the published Prostamax studies apply to the pen?
Only as background on the compound. The chromatin study and the reviews describe the peptide in cells, not in a stored solution, and none reports its stability in bacteriostatic water. Follow the safety data sheet for the pen's storage.
Is the Prostamax pen for human use?
No. It is sold for laboratory research only and is not approved for human or veterinary use. Nothing on this page describes using it in people or animals.
References
- Khavinson VKh, Lezhava TA, Malinin VV. Effects of short peptides on lymphocyte chromatin in senile subjects. Bull Exp Biol Med. 2004;137(1):78-81. DOI · PubMed
- Khavinson VK, Popovich IG, Linkova NS, et al. Peptide Regulation of Gene Expression: A Systematic Review. Molecules. 2021;26(22). DOI · PubMed
Research use only
For laboratory research use only. This product is not a drug, food, cosmetic or dietary supplement, is not approved by the FDA or any comparable authority for human or veterinary use, and must not be given to people or animals. It is sold to qualified researchers and institutions, and the buyer is responsible for lawful handling and disposal.
Other formats of Prostamax
Prostamax is also stocked as Prostamax 20mg Nasal Spray. Each listing states its own quantity and concentration, and the pen and vial comparison explains what changes between formats.
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