Cardiogen: Reference Overview and Reconstitution Notes

Cardiogen is a short, man-made peptide from the Khavinson bioregulator family. It is grouped as a heart and blood vessel tissue bioregulator. It is for research only and is not FDA-approved.

Cardiogen

What it is

Cardiogen is a short, man-made peptide. A peptide is a tiny chain of amino acids, the basic building blocks that proteins are made from. Cardiogen has just four amino acids linked together, which makes it a tetrapeptide (tetra means four). Those four amino acids are alanine, glutamic acid, aspartic acid, and arginine, often written as Ala-Glu-Asp-Arg or AEDR. Cardiogen belongs to the Khavinson family of short peptide bioregulators. This is a group of tiny protein fragments that came out of Russian aging research. Researchers often describe them as "tissue-selective," meaning each one is thought to act mainly on one specific type of body tissue.

Research context and categorization

Bioregulator Classification

Cardiogen falls under the Khavinson bioregulator group. Within that group, it is labeled as a heart and blood vessel tissue bioregulator. In plain lab terms, researchers study it in connection with heart muscle cells (called cardiomyocytes) and how those cells stay balanced and working normally (a process called cardiac cellular homeostasis).

Cardiogen is also discussed alongside the broader Khavinson idea. That idea suggests that very short peptide chains may interact with parts of DNA and influence how genes are read and turned into proteins (a process called gene transcription). Think of it like a small key that may fit a specific lock on the DNA strand, nudging it to open or close.

Investigational Scope

It is studied in the lab for topics such as:

• How heart muscle cells use energy and how their mitochondria (the tiny power plants inside cells that produce energy) work
• How fibroblasts (cells that build the structural scaffolding around other cells) behave, including how they produce proteins like collagen and elastin (which give tissue its strength and stretch)
• How heart tissue models respond to oxidative stress (damage caused by unstable molecules called free radicals)
• Heart aging and tissue repair in lab models

These uses are strictly investigational. They come mostly from preclinical studies, cell culture work (done in a dish or test tube, not in a living person), and animal models. They are not confirmed or approved outcomes.

Key point: Cardiogen is not an FDA-approved drug (the FDA is the U.S. agency that approves drugs for human use), and no heart or blood vessel benefit in humans should be assumed from this research framing.

Status

• Regulatory status: Research only, not FDA-approved. It is handled as a research chemical and is not approved for any medical use.
• Sport status: Cardiogen is not listed by name on the WADA Prohibited List (WADA is the World Anti-Doping Agency, which sets the rules on banned substances in sport). However, WADA uses broad catch-all categories such as S0 (non-approved substances) and S2 (peptide hormones, growth factors, and related substances). A substance not being listed by name does not automatically mean it is allowed. Athletes should check the current WADA Prohibited List or contact an anti-doping organization to confirm its status.

Reconstitution notes (general)

Reconstitution means mixing the dry powder with a liquid to make a working solution. The concentration (how strong the solution is) equals the milligrams of peptide in the vial divided by the millilitres of liquid added.

For example, a 20 mg vial mixed with 3 mL of bacteriostatic water (water with a small amount of preservative added to stop bacteria from growing) gives about 6.67 mg/mL. The same vial mixed with 2 mL gives 10 mg/mL. To work out the right concentration for any fill volume, use the calculator at peptide calculator.

Dilution and handling notes (compound-specific)

Cardiogen comes as a lyophilized (freeze-dried) powder, usually in 20 mg vials. Because it is a small peptide that mixes easily with water (described as hydrophilic, meaning it is attracted to water), it dissolves readily in bacteriostatic water or a similar water-based liquid. It does not need heavy or aggressive mixing.

A common range is about 2 to 3 mL of bacteriostatic water per 20 mg vial, giving a solution of roughly 6.67 to 10 mg/mL. The exact volume is mainly a matter of what concentration the lab wants to work with, not a hard limit on how much powder can dissolve.

Reconstitution Steps

• Add the water slowly: Aim the stream down the inside wall of the vial rather than straight onto the powder. A slow, wall-directed pour reduces foaming and protects the peptide from physical stress.
• Dissolve gently: Let the vial rest, then swirl or roll it gently until the powder is fully dissolved. Do not shake it. Because Cardiogen is a small peptide that does not tend to clump together, it should dissolve smoothly at these concentrations.
• Inspect quality: A solution that stays cloudy, develops floating particles, or does not clear up after gentle swirling signals a handling or material problem. Treat this as a quality flag. Do not try to correct it with heat or hard shaking.

Handling and storage

• Lyophilized powder: Store it dry, dark, and cold. Ideally keep it frozen until you are ready to use it.
• Reconstituted solution: Refrigerate at 2 to 8 C, keep it away from light, and wipe the rubber stopper with an alcohol swab before each withdrawal.
• Vial labeling: Write the mix date on the vial. Treat about a four-week refrigerated window as a practical outer limit, though many references recommend a shorter usable period.
• Precautions: Avoid freezing and thawing the solution more than once. Discard it if it becomes cloudy or discolored, or if you see floating particles.

Related reading

• Cartalax
• Cerebrolysin
• Chonluten
• How Reconstitution Works
• How Long Does a Reconstituted Vial Last?

Tools and supplies

• peptide calculator
• Bacteriostatic Water 30 ml
• Gansulin Metal Reusable Pen
• 3 ml Glass Cartridges (10-pack)
• Complete Starter Kit

Reminder: research and educational reference only. Preppin Peppers sells hardware and materials, not peptides. Not medical, dosing, or health advice, not evaluated by the FDA, and not intended for human or animal use.

Frequently asked questions

What amino acids make up Cardiogen and what is its sequence?

Cardiogen is a tetrapeptide composed of four amino acids in the sequence alanine-glutamic acid-aspartic acid-arginine, abbreviated Ala-Glu-Asp-Arg or AEDR.

What is Cardiogen's regulatory and anti-doping status?

Cardiogen is not FDA-approved and is classified as a research chemical. It is not named on the WADA Prohibited List, but broad categories such as S0 (non-approved substances) may apply; always verify current status with an anti-doping authority.

How is a lyophilized Cardiogen vial reconstituted in the laboratory?

Add bacteriostatic water to the lyophilized powder, calculating volume from vial mass and target concentration. Inject liquid slowly down the vial wall, swirl gently until dissolved, inspect for clarity, then label and store per lab protocol.

What the research community gets wrong about Cardiogen

Cardiogen (the tetrapeptide Ala-Glu-Asp-Arg, or AEDR) is easy to mislabel at the bench. A few points come up again and again.

• It is not a proven heart treatment. The published work is preclinical, meaning it comes from cell cultures, tissue explants, and animal models, not from approved human use. Findings in a dish do not carry over to a body, and Cardiogen is not an FDA-approved drug.
• "Tissue-selective" is a model, not a settled fact. The idea that a short peptide fits a specific spot on DNA and shifts gene reading comes from the Khavinson framework. It is a proposed mechanism that is still being studied, so treat it as a hypothesis when you design an experiment, not a given.
• The vial mass is not the concentration. A label reading 20 mg tells you how much powder is inside, not how strong your solution is. The strength depends entirely on how much bacteriostatic water you add. Two people can start from the same vial and end up with very different mg/mL.
• It does not need force to dissolve. AEDR is a small, water-loving peptide, so a gentle swirl is enough. Hard shaking adds foam and physical stress and can make a clear solution look bad without helping it dissolve.
• Not named on the WADA list does not mean cleared. Broad catch-all categories can still apply. Absence of a name is not the same as approval.

From our bench: If you reconstitute a 20 mg Cardiogen vial, we want your real handling notes. Record the water volume you added, the resulting mg/mL, the water temperature, and how many seconds of gentle swirling it took to reach a fully clear solution with no floating particles. Send us your actual numbers and we will add anonymized bench observations to this page.

Sources

1. Bacteriostatic Water for Injection, USP , FDA/DailyMed label (0.9% benzyl alcohol)
2. Duerkop et al., Biotechnol J 2018 , Impact of Cavitation, High Shear Stress and Air/Liquid Interfaces on Protein Aggregation
3. Sigma-Aldrich (Merck) , Handling and Storage Guidelines for Peptides and Proteins
4. Khavinson V, Popovich I, Linkova N, et al. Peptide Regulation of Gene Expression: A Systematic Review. Molecules. 2021 (PMC8619776)
5. Khavinson VKh, Kuznik BI, Ryzhak GA. Peptide bioregulators: the new class of geroprotectors. Communication 1: Results of experimental studies. Advances in Gerontology. 2012 (PMID 23734519)