Research overview
Khavinson Bioregulators Part 2: Prostamax, Crystagen, Ovagen, Vesugen and Testagen
14 November 2026 · 6 min read
Prostamax, Crystagen, Ovagen, Vesugen and Testagen are the next short peptides from the Khavinson bioregulator group. Each one is described in the literature as a regulator of the activity of cells in one specific tissue. This text complements the Khavinson bioregulators guide and focuses on the five products that researchers compare most often. All of them are research use only (RUO) reagents supplied as lyophilisate.
Five tissues, five directions of research
The table below shows which tissue the literature on this group points to for each peptide. It is a starting point for planning an experiment, not a description of a result. Bioregulators differ not only in their target tissue but also in how the literature describes them and in how far they have been studied. Even peptides from the same group therefore need a separate work plan.
| Peptide | Tissue named in the literature | Typical direction of research |
|---|---|---|
| Prostamax | prostate gland | prostate cell biology in models |
| Crystagen | immune system | activity of immune cells in vitro |
| Ovagen | liver, digestive tract | liver and gut cell models |
| Vesugen | blood vessel wall | vascular wall cells in in vitro models |
| Testagen | testicular tissue | biology of testicular tissue in cell models |
Prostamax: prostate gland tissue
Prostamax is associated in the work on Khavinson bioregulators with the prostate gland. Research focuses on cells of this tissue in laboratory models, most often in vitro. For teams studying prostate biology, it is a reagent that allows the cellular response to be compared under controlled conditions.
The exact mechanism of action has not been fully described. For that reason, it is best to treat Prostamax as a tool for framing research questions rather than as a substance with an established effect. Plan every experiment with a negative control and one clearly defined model. In practice, the first step is to confirm that the reagent behaves predictably in the buffer you use and at your working temperature. Only then move on to the actual question, for example a comparison with a peptide from another tissue tested in the same model.
Crystagen: cells of the immune system
Crystagen is described in the literature as a bioregulator of the immune system. Studies concern mainly cells of this system in in vitro models, and in some publications the immune response in animal models. The immune system is very complex, so at the design stage it helps to define which cell population and which response parameter are being observed.
A short molecule makes purity control and batch comparison easier. However, results from a single research group should be verified independently before they support the next stage of work. When planning a series of measurements, record which batch the material comes from and what concentration the solution was prepared at. This makes later comparisons simpler and reduces the risk that differences come from sample preparation rather than from the compound itself.
Ovagen: liver and digestive tract
Ovagen belongs to the same group of bioregulators, and the literature links it with the liver and the digestive tract. Research focuses on cells of these tissues in cell models. The mechanism is still under investigation, so results should be interpreted with care and checked against data from other sources.
An interesting question for the laboratory is whether the response of liver and intestinal cells differs from that of cells in other organs. Comparisons of this kind sit at the centre of the tissue concept, which is why Ovagen fits well into control sets that include several bioregulators.
Vesugen: the blood vessel wall
Vesugen is described as a bioregulator of the blood vessel wall. Studies concern cells of this wall in in vitro models. The vessel wall is a structure made of several cell types, so in an experiment it helps to separate them and study them individually. This makes it possible to attribute any response to a specific cell population rather than to the tissue as a whole.
Vesugen shows clearly why the tissue named in the literature has to be kept apart from a result. The target tissue is a good starting point for a project, but on its own it is not evidence of any particular effect.
Testagen: testicular tissue
Testagen is a short peptide described as a bioregulator of testicular tissue. The product page does not give its amino acid sequence or molecular formula, so this text does not quote them. The identity and composition of each batch are confirmed by HPLC and MS results. Research concerns the biology of testicular tissue in cell models and in animal models.
Testagen can serve as a reference point in comparisons with other bioregulators. In that case, the model, exposure time and solution preparation must be identical for every peptide in the study. If you plan several groups, run them in parallel rather than over consecutive weeks. A change of conditions during a series is one of the most common reasons why results cannot be compared later.
How to read this data
Most publications on all five peptides come from a single research group. Some studies describe small animal groups or shortened procedures, so results can be hard to reproduce exactly. Every mention of a tissue in this text therefore describes a direction of research, not a confirmed result.
Three principles help when planning the work:
- check the original publication before accepting any tissue assignment,
- set a negative control and one clearly defined model,
- compare peptides within the same system to separate the effect of the molecule from the variability of the model itself.
Quality and dispatch of reagents
All five peptides available at MOLEVIA have a purity of at least 99%, assessed by HPLC and MS. The reagents are lyophilised and supplied in 20 mg vials. We dispatch within 24 hours of placing an order: in Poland by InPost courier to a parcel locker, and across Europe by DPD. Details of the methods are set out on the quality page.
Working in the laboratory
- Store the lyophilisate at -20 °C, tightly closed and protected from light.
- Before opening, let the vial reach room temperature to limit moisture condensation.
- The basic solvent is bacteriostatic water. When a peptide dissolves poorly in water, diluted acetic acid is used.
- Keep the reconstituted solution at 2-8 °C, divide it into aliquots and avoid repeated freezing and thawing.
- Calculate the solution concentration in the concentration calculator before you dissolve the first vial.