Pinealon: Reference Overview and Reconstitution Notes

Pinealon is a lab-made, very short chain of three protein building blocks. It belongs to a group called the Khavinson bioregulators. It is studied for brain and nerve research. It is not FDA-approved and is handled only as a research compound.

Pinealon

What it is

Pinealon is a lab-made peptide. A peptide is a short chain of amino acids, which are the small building blocks that make up proteins. Pinealon has only three of them, so it is called a tripeptide. Its three building blocks are glutamate, aspartate, and arginine, giving it the shorthand name Glu-Asp-Arg, often written as EDR. Its molecular weight (a measure of how heavy one molecule is) is about 390 g/mol. Pinealon belongs to the Khavinson bioregulator family, a set of very short peptides developed at the St. Petersburg Institute of Bioregulation and Gerontology in Russia. Despite its name, Pinealon was not taken from the pineal gland (a small gland deep in the brain). It was described based on studies of peptide extracts from brain tissue.

Research context and categorization

Pinealon is placed in the cognitive (thinking and memory) and neuroprotective (brain-protecting) research category. More specifically, it is grouped with the Khavinson peptide bioregulators. Because the molecule is so tiny, some published Russian research suggests it may be able to pass through the outer wall of a cell and even through the wall of the cell's nucleus. The nucleus is the control center inside the cell, the place where the cell stores its genetic instructions. Once inside, the molecule may interact with chromatin, which is the tightly packed DNA and proteins that hold those instructions. Think of chromatin as the filing cabinet for the cell's blueprints. This idea is still a working hypothesis, meaning a proposed explanation that has not yet been 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 caused by harmful molecules called free radicals) and excitotoxicity (when nerve cells are over-stimulated to the point of damage)
• Changes in gene expression (which genes are switched on or off) and protein production in nerve cells
• Regulation of the body's internal clock and the pineal gland
• Reduction of apoptosis (planned cell death, where cells shut themselves down in a controlled way) in nerve tissue
• Cognitive endpoints such as memory and learning in laboratory animals

These are research areas only. Pinealon is not FDA-approved. The findings above come mainly from in-vitro studies (in-vitro means "in glass," referring to tests done in lab dishes or flasks rather than in a living animal) and rodent studies. Most of this work comes from the Khavinson group and partner Russian research teams, and few outside groups have repeated and confirmed these findings.

No controlled human clinical trial has confirmed these results. A controlled clinical trial is a careful study that tests whether something works in people under strict conditions. The descriptions here reflect what the compound is studied or discussed in relation to, not confirmed or approved benefits.

Key point: Pinealon is an investigational peptide with no FDA approval or confirmed human clinical trials, and is handled strictly as a research chemical.

Status

• Regulatory status: Not FDA-approved. Pinealon has no approved use in the United States and is sold and handled as a research chemical, typically labeled not for human consumption. It is not on the FDA Section 503A list of bulk drug substances approved for compounding, and there is no registered Western clinical trial for it.
• Sport status: Pinealon is not listed by name on the WADA (World Anti-Doping Agency) Prohibited List. However, because it has no approval for human therapeutic use, it may fall under the broad S0 Non-Approved Substances category. This category covers any substance not addressed elsewhere on the list and not approved by any government health authority for human use. It is a general catch-all rule, not a specific listing.

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.

Dilution and handling notes (compound-specific)

Pinealon ships as a lyophilized (freeze-dried) powder. Before lab use, you dissolve it by adding bacteriostatic water. Bacteriostatic water is water with a small amount of preservative that slows bacterial growth. This dissolving step is called reconstitution, which simply means returning 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, giving working concentrations of about 6 to 10 mg/mL. Less water makes a more concentrated solution with smaller draw volumes. More water makes small measurements easier to read on the syringe.

Pinealon is built from three charged amino acid building blocks (glutamate, aspartate, and arginine), which makes it very water-soluble, meaning it dissolves easily in water. Think of it like table salt: it disappears into water quickly and cleanly. It does not usually form a gel, turn cloudy, or leave solid bits at the concentrations listed above. This is different from larger peptides that resist water (called hydrophobic, or "water-fearing"), which can turn hazy or leave a dry cake at the bottom of the vial.

The one common issue is temperature. Mixing with cold water, or working with a vial straight from the fridge, can cause uneven dissolving. The simple fix is to let both the powder and the water warm up to room temperature before mixing.

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 it gently if any powder remains.
• Do not shake the vial, since shaking foams the solution and can stress the peptide.
• Keep vials out of direct light and return them to cold storage right away, because both the powder and the finished solution are light sensitive.

A properly reconstituted vial should look clear and free of particles.

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.

Related reading

• PNC-27
• Prostamax
• PTD-DBM
• 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 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.

Is Pinealon FDA-approved or available for human use?

No. Pinealon is not FDA-approved and has no confirmed controlled human clinical trials. It is classified strictly as a research chemical for laboratory use only and is not intended for human or animal use.

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 you have to track.
• 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 that some short-peptide protocols call for are usually not needed for this compound.
• 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 you need to store it a long time.

From our bench, Pinealon has been one of the easier powders we work with. When we aim the water gently down the inner glass wall and let a fridge-cold vial come to room temperature first, it goes into solution fast and stays clear, without the haze or leftover cake we see with water-shy peptides. The habit that has saved us the most trouble is plain and simple: keep the vials dark and cold and write the mix date on the label, instead of fussing over special solvents it does not need.

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. Glu-Asp-Arg (Pinealon / EDR) chemical record, PubChem CID 10273502 (C15H26N6O8)
5. Khavinson et al., EDR Peptide: Possible Mechanism of Gene Expression and Protein Synthesis Regulation, Molecules 2021
6. Bachem, Handling and Storage Guidelines for Peptides (solubility, oxidation-prone residues, storage)