Selank spray is an intranasal peptide studied for anxiety and focus in Russia. Learn dosing, side effects, legal status, and how it compares to injections.
Selank spray is an intranasal form of selank, a synthetic peptide developed in Russia and studied for anxiety, stress, and cognitive focus. The spray delivers the peptide across the nasal lining instead of through a needle. Selank is not FDA-approved for human use in the United States and is sold there only as a research chemical.
What Is Selank Spray?
Selank is a synthetic analog of tuftsin, a short peptide the immune system produces naturally. Chemists extended the tuftsin sequence with a Pro-Gly-Pro tail to make the molecule more stable in the body. The result is a heptapeptide that has been researched since the 1990s at the Institute of Molecular Genetics in Moscow.
In Russia, selank is a registered prescription medicine and is normally packaged as a 0.15% nasal solution in a dropper bottle. Because the studied route is intranasal, the terms nasal selank, selank nose spray, selank peptide spray, and selank intranasal all describe the same basic product.
How a Selank Nose Spray Is Used
The nasal lining is thin and heavily supplied with blood vessels, so small peptides can pass into circulation within minutes. That makes the nose a practical delivery route for compounds that break down quickly in the stomach.
Standard research instructions are straightforward:
- Blow your nose gently so the nasal passages are clear.
- Insert the spray nozzle or dropper just inside one nostril, angled slightly outward.
- Breathe in softly while releasing the spray. A hard sniff sends solution down the throat.
- Keep your head upright for a minute so the liquid stays on the mucosa.
Reported onset for intranasal selank is roughly 10 to 20 minutes, and effects are usually described as subtle rather than dramatic. Many users say a full course feels more noticeable than a single dose.
Selank Spray Dosage
No US regulator has published a dosing schedule for selank. The figures below come from Russian clinical literature and vendor instructions, and they are the numbers most often cited in research summaries.
| Parameter | Commonly cited protocol |
|---|---|
| Dose per administration | 250-500 mcg (about 2-3 drops of a 0.15% solution per nostril) |
| Frequency | 2-3 times per day |
| Course length | 10-14 days |
| Total daily amount | Roughly 500-1,500 mcg |
| Storage | Refrigerated and protected from light |
Dose sizes vary by vendor and by the concentration of the solution, so 0.15% and 1 mg/mL products are not interchangeable drop for drop. Anyone considering selank intranasal use should confirm the concentration on the label and speak with a healthcare professional first.
Selank Spray vs Injection vs Capsules
Route of delivery changes how much peptide actually reaches the bloodstream. Comparing the three common options shows clear trade-offs.
| Route | Absorption | Advantages | Drawbacks |
|---|---|---|---|
| Intranasal spray | Moderate and variable | Needle-free, fast onset, the route used in most selank research | Nasal irritation, absorption varies between users |
| Subcutaneous injection | High | Precise dosing, near-complete absorption | Needles, injection site reactions, not the studied route for selank |
| Oral capsules | Low | Convenient, no nasal or injection discomfort | Digestive enzymes break down most peptides before absorption |
Selank was researched as an intranasal drug, so nasal delivery is the best-documented option. Injecting selank is not standard practice, and swallowing it is likely to waste most of the dose.
What the Research Suggests
Russian trials have reported reduced anxiety, improved mood, and better performance on attention tasks after short courses of intranasal selank. Laboratory work points to effects on GABA signaling, BDNF, and enkephalin metabolism, which are plausible mechanisms for an anxiolytic peptide.
Most published human studies of selank are small Russian trials, and independent Western replication is limited. The evidence base is therefore promising but thin, and no study supports selank as a treatment or cure for any diagnosed condition.
Selank Nasal Spray Side Effects and Safety
Reported selank nasal spray side effects are usually mild and short-lived, but they are not zero.
- Nasal burning, dryness, or sneezing right after use
- Headache or a light-headed feeling
- Drowsiness, or in some cases mild irritability
- Unpleasant taste if solution drips into the throat
Long-term safety data for selank do not exist, and the peptide has not been evaluated by the FDA for human use. People who are pregnant, nursing, taking psychiatric medication, or managing a chronic condition should treat selank as an experimental compound and get medical advice before using it.
Legal Status and Sourcing
Selank is a prescription drug in Russia and is not approved for sale as a medicine anywhere in the United States. US vendors market it as a research chemical with labels stating it is not for human consumption.
Buying from unregulated suppliers carries real risk: a vial may contain less peptide than the label claims, may be contaminated, or may hold a different compound entirely. People who want to buy dsip nasal spray encounter the same research-only labeling and the same quality concerns. Independent third-party testing and cold-chain shipping are reasonable things to look for.
How Selank Compares to Other Intranasal Peptides
Intranasal delivery is used for several other research peptides, and each one has a different purpose. Researchers also look at aod 9604 peptide nasal spray for fat metabolism, while PT-141 is studied for sexual function. The same needle-free logic applies to all of them, but the biology does not.
Dosing conventions differ just as much. A dsip nasal spray dosage schedule is measured in hundreds of micrograms at night, whereas selank is usually dosed two or three times a day. Copying one peptide's protocol onto another is a common and avoidable mistake.
The trade-off between convenience and absorption shows up in every intranasal peptide discussion. The comparison of pt-141 nasal spray vs injection is a good example: the nasal version is easier to use, but injected forms generally produce more predictable blood levels. Selank follows the same pattern.
Frequently Asked Questions
Is selank spray legal to buy in the United States?
Selank is not FDA-approved for human use in the United States, so it cannot legally be sold as a dietary supplement or medication. US vendors offer it as a research chemical labeled not for human consumption. In Russia, selank is a prescription drug.
What is a typical selank nasal spray dosage?
Russian research and vendor protocols usually cite 250-500 mcg per dose, taken two to three times daily for 10 to 14 days. No US health agency has published an official dose. Because concentration varies by product, users should check the label rather than assume all sprays are equal.
What are the side effects of selank spray?
The most commonly reported effects are nasal burning, dryness, sneezing, headache, and occasional drowsiness or mild irritability. These effects are generally described as mild and short-lived. Long-term safety data are lacking, so anyone with a medical condition or taking medication should consult a healthcare professional before use.
This page provides educational research information and does not replace medical advice, diagnosis, or treatment.