Adalank
N-Acetyl Selank AmidateNA-Selank-AmidateSelank amidateEvidence
Preclinical
Typical vial
10 mg
Route
2 routes
Status
United States
What it is
Selank with both ends capped against degradation. The same trade as the amidated Semax: longer-lasting, and no human evidence for the modified form.
Adalank is N-acetyl Selank amidate: Selank with an acetyl group at one end and an amide at the other, capped against the enzymes that would otherwise break it down.
Selank itself is a synthetic analogue of tuftsin, developed in Russia as an anxiolytic that does not sedate, and registered there. It has a genuine clinical record, of the kind this site describes carefully rather than dismisses.
The amidated version does not share that record. It is presumed to be more potent and longer-lasting on the same reasoning as its Semax counterpart, and no human trial has tested it. Anyone choosing it over Selank is choosing a potency claim over a clinical history.
How it works
Selank is derived from tuftsin, a naturally occurring immunomodulatory peptide fragment, and is understood to affect GABA and serotonin signalling as well as BDNF expression. Its anxiolytic effect is described as occurring without sedation, which is the property that distinguishes it from benzodiazepines.
The terminal modifications change duration rather than target. Capping the ends slows enzymatic breakdown; it does not alter what the molecule binds.
Whether a longer-acting anxiolytic peptide behaves like a stronger one or simply a more persistent one is not established, and the distinction matters for something affecting GABA signalling.
What it is studied for
Each entry states the evidence behind it. We do not rank indications by effectiveness — for most compounds here, that would be a claim nobody can support.
Anxiety and stress
Published reviewWhat Selank is registered for in Russia, and why this is bought.
EvidenceSelank has Russian clinical registration. The amidated form has no human trial of its own.
Regulatory status
Last reviewed 18 Aug 2026. Positions in this category change frequently, so we date the line.
Not approved anywhere. Selank is registered in Russia as an anxiolytic; this modified version is not, and has never been studied in a human trial. Sold only as a research chemical.
Identity and clearance
What the molecule is, and how long a dose stays measurable.
Molecule
- Class
- N-acetylated, C-amidated analogue of Selank
- Length
- 7 amino acids
Same backbone as Selank with both termini capped against enzymatic degradation.
Dose protocols reported in sources
Displayed for reference only. Every row says where it came from, and a trial protocol and a community convention are not the same kind of information. None of this is fed into the calculator, and none of it is a recommendation.
| Goal | Dose | Frequency | Route | Units, 10 mg vial | Source | Start this protocol |
|---|---|---|---|---|---|---|
| Commonly described community protocol | 250 mcg – 750 mcg | Once or twice daily | NasalLower than Selank figures on the assumption of greater potency. That assumption rests on animal work, and no human study establishes the equivalence. | 12.5–37.5 u | Community practice | Start this |
The doses above in syringe units, for the vial you have:
Start this copies a row into a protocol of your own, which you can then edit. Where a source gave a dose range or an ambiguous frequency, those fields arrive empty — we will not pick a number on your behalf.
CheckRows marked community practice describe what people commonly do, drawn from public discussion. They are not derived from any trial and are not evidence that a dose is safe or effective.
Work out what to draw
Pre-filled with a 20 mg vial as a worked example. These are not recommended values — change them to match the vial in front of you.
Draw to 5 units on a 1 mL U-100 syringe. That is 0.05 mL, containing 500 mcg of Adalank.
Check5 units falls between the printed lines on a 1 mL U-100 syringe. Mixing with 1.6 mL of water instead would put this dose at 4 units.
BioAlmanac performs arithmetic on values you enter. It does not recommend doses, schedules or compounds, and nothing here is medical advice. Confirm every calculation against your vial and syringe before drawing, and speak with a licensed healthcare provider.
Open this calculation in the full calculator
Units, concentration, bacteriostatic water — the glossary defines the vocabulary, and a unit is not a fixed volume.
Safety
Reported effects, the situations that need care, and the ones that mean stop.
Reported effects
- Nasal irritationCommunity practice
Commonly reported
- Drowsiness or flatness of moodCommunity practice
Occasionally reported
Selank's stated advantage is anxiolysis without sedation. A longer-acting version being described as sedating is worth noticing.
- Everything elseCommunity practice
Unknown
The modified molecule has never been studied in a person.
When to stop
- Worsening mood, flatness, or any thought of harming yourself. Seek help.
- Sedation that interferes with driving or work.
- Nasal pain, bleeding or discharge.
- Any allergic response: rash, hives, facial swelling or difficulty breathing. Seek urgent care.
Interactions and situations that need care
- Any psychiatric condition, or antidepressant or anxiolytic therapyAvoid
A compound affecting GABA and serotonin signalling, with no human data in this form, added to a condition already being treated with drugs acting on the same systems, is an interaction nobody can predict.
- Pregnancy and breastfeedingAvoid
No reproductive or developmental safety data.
- Treating anxiety without assessmentUse caution
Anxiety that warrants treatment warrants a diagnosis, and there are treatments with decades of trial evidence behind them. Substituting an unstudied peptide is choosing the option with the least support.
What to expect
What the sources describe over time, and how confident anyone can be about it.
HonestlyThere is no human efficacy data for this compound, so there is no evidence-based timeline to give. Any site publishing a week-by-week schedule of expected effects has invented it.
- No human trial of the amidated form exists. The clinical record belongs to Selank.
- The modification changes duration, not target.
- Selank's selling point is anxiolysis without sedation, and the longer-acting version is more often described as sedating.
- If the Russian clinical record is what interests you, it belongs to Selank rather than to this.
Storage and combinations
How to keep it, and what it does and does not go with.
Storage and handling
- Freeze-dried powder
- Refrigerated at 2–8 °C, protected from light.
- After mixing
- Refrigerated at 2–8 °C. Nasal solutions are handled more than injectables and are correspondingly easier to contaminate.
- Long-term, frozen
- Unopened powder is stable at −20 °C or colder.
With other peptides
- Selankcaution
This is a modified Selank. Running both is taking the same compound twice, once in a form with Russian clinical registration and once in a form with none.
Checking your vial
Research chemicals carry no manufacturing standard, so what the vial looks like is often the only quality signal available before you use it.
White cake, clear solution
Standard for a short peptide.
Collapsed cake or cloudy solution
Heat damage or degradation. Do not use it.
Vocabulary on this page
- Duration of action
- How long an effect lasts. This is not the same as half-life and often much longer.
- Evidence level
- The category of human evidence behind a compound, from preclinical through to approved. Stated on every profile here as a category, not an adjective.
- Peptide
- A short chain of amino acids: the same building blocks as a protein, in a chain short enough to behave differently.
- Protocol
- One compound, with a dose, a frequency and a length: the plan, as opposed to what was actually taken.
Questions
- How is it different from Selank?
- Both ends are chemically capped so it survives longer. That is the only difference in what the molecule is. The difference in what is known about it is much larger.
- Is Selank a benzodiazepine?
- No. It affects GABA signalling but is not a benzodiazepine, and its stated advantage is reducing anxiety without the sedation and dependence that class carries. That claim is from the Russian literature.
References
Everything on this page that came from a source, with the source.
Russian clinical literature on regulatory peptides and nootropics: scope and limits
Russian pharmacology and psychiatry literature, 2015 · Body of clinical work, largely unregistered and not blinded to contemporary standards
Humans
Reports anxiolytic, nootropic and neuroprotective effects supporting registration of several of these compounds in Russia. Methodology, reporting standards and the absence of independent replication limit how much weight the findings carry elsewhere.
Commonly reported community protocols
BioAlmanac editorial summary of public community sources, 2026 · Not a study
Records dose and route patterns described in public discussion. Carries no evidential weight about safety or effect.
Adalank compared with
Also compared with Semax, Cerebrolysin, Dihexa, N-Acetyl Semax Amidate, Adamax, Noopept.
Related compounds
Selank
A seven-amino-acid peptide developed in Russia and used there for anxiety. Nasal rather than injected, and the sibling compound to Semax.
Semax
A seven-amino-acid peptide developed in Russia and approved there for stroke and cognitive indications. It holds no approval elsewhere and is used nasally rather than injected.
Cerebrolysin
A pig-brain peptide preparation approved as a medicine in around forty countries. Decades of trials, and systematic reviews that still cannot find a clear benefit.
Dihexa
A small peptide reported as vastly more potent than BDNF at forming new synapses in animals. No human has been studied on it, and the potency is the concern, not the selling point.
Next
What to do with Adalank
- Keep a record of itTurn a dose and a schedule into a protocol, then log what you actually take. Adalank is filled in for you.
- See what it costsPer-milligram prices read from vendor sites and confirmed by a person, so vial sizes compare.
- Check a combinationWhat our profiles record about Adalank alongside each other compound — including the pairs where nothing is recorded.
Keep this page honest
If something here is wrong, out of date, or missing a source, tell us and we will fix it and say that we did.
This page is educational. It describes what published research reports, not what you should do. Peptides discussed here are largely not approved for human use, and nothing on BioAlmanac is medical advice. No clinician reviews these pages.
Page last updated 18 Aug 2026