← Peptide Index

Pinealon

Pinealon is a research reference peptide composed of 3 amino acids. Structural class: Tripeptide. Reported molecular weight: 418.4 Da. Listed for research and educational reference only.

Also known asSynthetic Tripeptide
Evidence levelWell Researched
Regulatory statusResearch-only
Molecular weight418.4 Da
Chain length3 amino acids
ClassTripeptide
SequenceGlu-Asp-Arg (EDR)
NotesSynthetic peptide bioregulator with direct DNA interaction capabilities
Updated2026-10-12

Pinealon is a synthetic tripeptide made of three amino acids, glutamate, aspartate, and arginine (Glu-Asp-Arg, sometimes written EDR), with a molecular weight of about 390 g/mol. A tripeptide is simply a short chain of three linked amino acids, far smaller than a full protein.

Pinealon sits within the Khavinson bioregulator peptide family, a group of short synthetic sequences first described in Russian research literature on aging and cell regulation, and it is cataloged there alongside other short-chain research peptides rather than as a standalone discovery.

  • Class: tripeptide bioregulator, Khavinson family
  • Sequence: Glu-Asp-Arg (EDR)
  • Molecular weight: approximately 390 g/mol
  • Literature context: referenced in neuroscience and cognitive-aging research as a subject of laboratory study
For research and educational reference only. Preppin Peppers sells laboratory hardware and materials (reconstitution pens, cartridges, and bacteriostatic water); it does not sell peptides or any substance for consumption. This is educational content, not medical, health, veterinary, or compounding advice, has not been evaluated by the FDA, and is not intended to diagnose, treat, cure, or prevent any condition, or for human or animal use. Comply with the laws that apply to you and consult a licensed professional for any health decision.

In that literature, Pinealon is treated strictly as a research reagent: something a lab reconstitutes, dilutes, and studies under controlled conditions, not a product formulated or labeled for human or animal use. It carries no FDA evaluation and no approval, treatment, or outcome status of any kind. Preppin Peppers references it here purely as a research compound, described for reference rather than recommended for any use. Our own catalog covers only the reconstitution hardware, such as pens, cartridges, and diluents, used to prepare research materials like this one in a laboratory setting; we do not sell the peptide itself.

Chemical structure of Pinealon
The chemical structure of Pinealon.

Pinealon is typically supplied as a lyophilized (freeze-dried) powder for research use, requiring reconstitution with a diluent before it can be measured or stored in solution. As with most lyophilized peptides, solvent choice affects stability once reconstituted: bacteriostatic water contains benzyl alcohol as a preservative, which can interact with certain peptide structures over time, while non-bacteriostatic water carries no preservative and is intended for single-use handling.

Because stability profiles vary by compound and manufacturer, researchers should always check the specific lot's Certificate of Analysis and storage guidance rather than assume general behavior. Reconstituted material is generally kept refrigerated, with gentle mixing used to avoid degrading the peptide structure, and used within the timeframe that documentation specifies.

What it is

Pinealon is a synthetic, lab-made peptide. A peptide is a short chain of amino acids, the small building blocks that make up proteins, and Pinealon contains only three of them, which is why it is classified as a tripeptide.

  • Sequence: the three amino acids are glutamate, aspartate, and arginine, giving the shorthand name Glu-Asp-Arg, commonly written as EDR.
  • Molecular weight: approximately 390 g/mol, a standard measure of how heavy a single molecule is.
  • Family: Pinealon is grouped with the Khavinson bioregulator peptides, a set of very short peptides first described by researchers at the St. Petersburg Institute of Bioregulation and Gerontology in Russia.
  • Name origin: despite the name, Pinealon was not isolated from the pineal gland, a small gland located deep in the brain. It was characterized from laboratory studies of peptide extracts derived from brain tissue samples.

Research context and categorization

Pinealon is categorized within cognitive (thinking and memory) and neuroprotective (brain-protecting) research, grouped with the Khavinson family of peptide bioregulators. Its very small size is the basis for a working hypothesis found in published Russian literature: that the molecule may be able to cross the outer cell membrane and, from there, the nuclear membrane as well.

The nucleus is the cell's control center, the place where genetic instructions are stored. Once inside, researchers hypothesize that Pinealon may interact with chromatin, the densely packed combination of DNA and structural proteins that holds those instructions - comparable to a filing cabinet for the cell's blueprints. This remains a proposed explanation that has not been independently confirmed.

Areas of Research

In cell-culture and animal models, Pinealon is commonly investigated in relation to:

  • Reported brain-protecting activity against oxidative stress (damage from unstable molecules called free radicals) and excitotoxicity (over-stimulation of nerve cells to the point of damage)
  • Changes in gene expression (which genes are switched on or off) and protein production in nerve cells
  • Regulation of circadian (day-night) rhythm signaling and pineal gland activity
  • Reported reduction of apoptosis (programmed cell death, in which a cell shuts itself down in a controlled sequence) in nerve tissue
  • Cognitive endpoints such as memory and learning measured in laboratory animals

These are documented research areas only, not confirmed outcomes. The findings above are drawn mainly from in-vitro work (literally "in glass" - testing performed in lab dishes or flasks rather than in a living organism) and rodent studies. Most of the published data originates from the Khavinson group and partner Russian research teams, and independent replication by outside laboratories remains limited.

A labeled Pinealon vial and thermometer inside a small lab fridge, with a blank wall clock in the background.
Proper cold storage and time tracking are essential for preserving Pinealon.

No controlled clinical trial in humans has confirmed these findings. A controlled clinical trial is a structured study, conducted under strict conditions, that tests whether a substance produces an effect in people. Everything described in this section reflects what Pinealon is studied or discussed in relation to within the research literature - not a confirmed or approved outcome, and not evidence of any effect in humans or animals.

Key point: Pinealon has not received regulatory approval and has not completed confirmed human clinical trials. It is supplied and handled strictly as a research chemical, for laboratory and research use only - not for human or animal use.


Status

  • Regulatory status: Pinealon is not FDA-approved and has no approved use in the United States. It is documented and supplied strictly for research purposes, not for human or animal consumption. It does not appear on the FDA's Section 503A list of bulk drug substances approved for compounding, and no Western clinical trial is currently registered for it.
  • Sport status: Pinealon is not named individually on the WADA (World Anti-Doping Agency) Prohibited List. However, because it has no approval for human therapeutic use, it may still fall under the List's S0 Non-Approved Substances category — a general catch-all for substances lacking government health-authority approval, rather than a specific listed entry.
  • Scope: This status information describes Pinealon as a research compound and does not extend to the reusable pens, cartridges, or needles referenced elsewhere in this article.

Reconstitution notes (general)

Concentration (how strong the solution is) equals the milligrams of peptide in the vial divided by the milliliters of bacteriostatic water added. For example, a 20 mg vial mixed with 2 mL of water gives 10 mg/mL. The same vial with 3 mL gives about 6.7 mg/mL. To find the right concentration for any vial size, use the peptide calculator.

Cartridge and needle fit

Our pens take standard 3 ml (300-unit) glass cartridges with the 11 mm long plunger (stopper), the cartridge we sell. 3 ml cartridges are also made with a shorter, about 8 mm plunger, and a pen is built for one height, so check that a cartridge from another source has the 11 mm long plunger before loading it; the glass looks identical from the outside. They pair with universal 28G-33G screw-on pen needles. We have not tested our hardware with other manufacturers' pens or cartridges, so fit outside our own line is unconfirmed - check any other pen's stopper depth before assuming compatibility.

Solution stability, general

Once mixed, a solution's chemistry can shift with time, light, heat, and diluent choice. Benzyl alcohol, the preservative in bacteriostatic water, is one factor in storage stability for some peptides. A visible change, such as a copper-peptide solution moving from blue toward clear, signals that the chemistry has shifted and is worth logging alongside the mix date.


Dilution and handling notes (compound-specific)

A vial of bacteriostatic water
The bacteriostatic water we ship. For educational reference only.

Pinealon ships as a lyophilized (freeze-dried) powder, dissolved before lab use by adding bacteriostatic water: sterile water with a small amount of preservative to slow bacterial growth in a multi-use vial. This step, reconstitution, returns the dried powder to liquid form. Vials commonly hold 10 mg to 20 mg of powder.

Most labs add roughly 1 to 3 mL of water, for working concentrations of about 6 to 10 mg/mL. Less water gives a more concentrated solution with smaller draw volumes; more water spreads the powder across a larger volume, easier to read on a syringe.

Because stability profiles vary by compound and manufacturer, researchers should always check the specific lot's Certificate of Analysis and storage guidance rather than assume general behavior.

Pinealon is built from three charged amino acids (glutamate, aspartate, and arginine), making it very water-soluble: it dissolves easily rather than resisting water, and at the concentrations above should not gel, cloud, or leave residue. This differs from larger, more hydrophobic peptides, which can turn hazy or leave a dry cake at the bottom of the vial.

A common handling question: does the benzyl alcohol preservative in bacteriostatic water affect solution stability? It is generally well tolerated by small, charged peptides like Pinealon at standard preservative levels, but it is a mild additive, not a passive carrier, and some peptide families are more sensitive to it than others. If a vial shows discoloration, unexpected haze, or a persistent odor change after mixing, log it as a stability signal rather than assuming it is cosmetic.

The other common variable is temperature: mixing with cold water, or a vial straight from the fridge, can cause uneven dissolving. Let both powder and water reach room temperature before combining.

Best Practices for Reconstitution

  • Point the water stream gently down the inner glass wall of the vial, not directly onto the powder.
  • Let the vial sit for a minute or two, then swirl gently if any powder remains.
  • Do not shake the vial; shaking foams the solution and can stress the peptide.
  • Keep vials out of direct light and return them to cold storage right away, since both powder and finished solution are light sensitive.

A properly reconstituted vial should look clear and free of particles; log any deviation as part of routine handling records.


Handling and storage

For best stability and cleanliness at the bench, follow these handling guidelines:

  • Refrigerate the reconstituted solution at 2 to 8 degrees Celsius and keep it away from light.
  • Wipe the rubber stopper with alcohol before each needle puncture, and write the mix date on the vial label.
  • Use the reconstituted vial within the general roughly 4-week refrigerated window.
  • Avoid repeated freeze-thaw cycles. If longer storage is needed, split the solution into single-use volumes (called aliquots) before freezing.
  • Discard any vial that turns cloudy or discolored, or that shows floating particles. A visible color shift during storage (for example, a solution that starts tinted and turns clear) is a discard signal, not something to troubleshoot around.
  • Diluent composition matters: some preservatives and buffers used in reconstitution have different stability and freeze-thaw tolerances than plain sterile water. Always follow the reconstitution guidance specific to the compound and diluent you are using rather than assuming one timeline fits all products.

Frequently asked questions

What is Pinealon made of and what is its molecular weight?

Pinealon is a synthetic tripeptide composed of glutamate, aspartate, and arginine (Glu-Asp-Arg / EDR) with a molecular weight of approximately 390 g/mol. It belongs to the Khavinson bioregulator family developed in Russia.

What research areas is Pinealon investigated for?

In cell-culture and animal models, Pinealon is investigated for neuroprotection against oxidative stress and excitotoxicity, gene expression changes in nerve cells, apoptosis reduction, and cognitive endpoints such as memory and learning.

What is Pinealon's research and handling classification?

Pinealon has not undergone confirmed controlled clinical trials. It is classified strictly as a research chemical intended for laboratory use only, to be handled exclusively by qualified researchers within controlled laboratory settings.

What the research community gets wrong about Pinealon handling

  • Assuming it needs a strong solvent. Pinealon is built from three charged building blocks (glutamate, aspartate, and arginine), so it is very water-loving. Plain bacteriostatic water dissolves it cleanly. Reaching for DMSO or other organic solvents is not needed here and only adds a variable to track.
  • Not accounting for what is in bacteriostatic water. It is not just water — it carries about 0.9% benzyl alcohol as a preservative. At reconstitution concentrations, that preservative does not degrade Pinealon or affect its solubility. What it does have is its own shelf clock once opened, separate from the powder's, so track that dating too rather than assuming the peptide sets the only limit.
  • Over-worrying about oxidation. The residues that oxidize fastest in peptides are methionine, cysteine, and tryptophan. Pinealon has none of them, so the oxygen-free water and reducing agents some short-peptide protocols call for are usually not needed here.
  • Skipping light and cold protection anyway. Low oxidation risk does not mean no care is needed. Keep the powder and the finished solution out of direct light and in cold storage, since light and warmth still speed up slow breakdown over time.
  • Reading cloudiness as damage. With a peptide this soluble, a hazy or slow-to-clear vial almost always means the water or powder was too cold, not that the peptide went bad. Let both reach room temperature, then swirl gently.
  • Keeping one big vial open for weeks. Repeated warming and cooling, plus repeated needle punctures, stress the solution more than the peptide's own chemistry does. Split it into single-use amounts if storing it a long time.

Sources

Correction (2026-10-03): an earlier version said our starter kit includes pen needles. It does not: our kits contain a pen, 3 ml cartridges and a 30 ml vial of bacteriostatic water, and we do not sell needles. The pens take universal 28G-33G screw-on pen needles, bought separately; and we removed a passage describing first-hand bench experience with Pinealon. We have no recorded test of Pinealon, so that passage should not have been published.

✔ Reviewed by Bryan Le, PharmD, RPh

Bryan is a licensed pharmacist (Doctor of Pharmacy, Registered Pharmacist). Reconstituting lyophilized preparations is core pharmacy practice, so he reviews The Lab’s content for technical accuracy and to keep it within a research-and-education scope, with no medical or dosing advice. View profile on LinkedIn.

Related entries in the index

For research and educational reference only. Not for human or veterinary use.