A synthetic tuftsin analog studied around GABAergic, serotonergic and neuropeptide signaling. Available as a compounded nasal spray after a licensed provider review.
Coming soon
Promise is moving to a new prescriber network. Visits are paused while we make the switch — leave your email on any treatment page and we'll tell you when they reopen. A licensed provider will still review every request, and not everyone qualifies.
You are on the list. We will email you if Selank becomes available — and nothing else. Joining is not a medical request, and no prescription has been issued.
That did not go through. Check the address and try again.
Every treatment gets its own online clinical questionnaire — your history, medications, and goals.
A real person goes through your history and takes the time to get it right before anything is decided.
If a treatment isn't right for your history, you'll hear that plainly. That review is the whole point.
Made for your prescription by a licensed U.S. pharmacy and shipped in temperature-safe packaging.
Your care team checks in after it arrives. Adjust with your provider, or cancel at any time.
Selank is offered as a nasal spray. Your provider decides whether it's appropriate — including whether a different treatment would serve you better.
20 mg / 13 mcg per spray bottle
Selank is easy to find online and hard to trust there. Promise works the way medicine is supposed to work — a clinician decides, a licensed pharmacy fills, and someone stays accountable to you.
Prescribed for you specifically, after a real look at your health history — never pulled off a shelf.
Your prescription is compounded for you by a licensed U.S. pharmacy — not a mystery vial from an unregulated website.
Temperature-safe shipping, follow-up check-ins, and a care team that answers — before and after your medication arrives.
Selank is built from tuftsin, a naturally occurring immune-active peptide fragment, with a short tail added to slow its breakdown. Research interest centers on GABAergic and serotonergic signaling.
Selank was developed in Russia and most of its human research was published there. That work is real, but it is thin by Western regulatory standards and hard to appraise independently.
Selank is available as a nasal spray. A licensed provider reads your history, decides whether it fits, and may decline.
Selank is available through Promise as a compounded nasal spray. The standalone contains one peptide; Semax / Selank combines both peptides in one nasal preparation. A licensed provider reviews every request and prescribes only when Selank is appropriate.
Selank is a synthetic analog of tuftsin — a short peptide fragment that occurs naturally in the body and has a recognized role in immune signaling. The analog keeps the tuftsin sequence and adds a small proline-glycine-proline tail, which slows enzymatic breakdown and gives the molecule enough working life to be studied.
Research interest centers on anxiolytic signaling: how the peptide appears to modulate GABAergic transmission, and separately on serotonergic and neuropeptide activity. It is not a sedative and it is not a benzodiazepine, and the research does not read it as either. It is studied as a modulator, which is a much more modest description than it sometimes gets online.
Within our calming and stress relief category it sits alongside DSIP, which comes at rest and recovery from an entirely different direction.
This is the part worth reading carefully. Selank was developed at a Russian research institute and the great majority of its clinical literature was produced and published there, in Russian. Those studies exist and some of them are human trials, but they are small, they are difficult to appraise from outside, and very few have been replicated in Western settings under contemporary trial standards.
That is not a claim that the work is wrong. It is a statement about how much weight it can carry. A compound with a plausible mechanism and a thin, hard-to-audit evidence base is exactly the kind of thing that belongs behind a clinician.
We will not describe Selank as a treatment for anxiety, because that is not a claim the available evidence supports and not a claim we are permitted to make. Anxiety is a real condition with real treatments, and a person who has it deserves a proper clinical assessment.
Selank is available as a nasal spray. The bottle strength is a product fact, not a public dosing schedule, and the provider sets any protocol after reviewing your history.
The standalone and Semax / Selank are different compounded preparations. The blend is not automatically stronger or better; a provider considers why one compound or the pair is being requested and whether either makes sense.
One clinical question is why someone wants Selank without Semax beside it. The pair brings two different research pathways together, while the standalone narrows the formulation deliberately. A provider wants to understand that reason.
They would also want your full picture — current medications, particularly anything acting on serotonergic pathways, and your mental-health history. A licensed provider reviews every request and prescribes only when treatment is appropriate.
If Selank is prescribed, a licensed U.S. pharmacy compounds and dispenses the nasal spray. The provider sets the protocol, and follow-up check-ins keep the decision connected to your response.
The same gate applies as everywhere else on Promise: an intake written for the compound, a licensed provider reading it, and a prescription only when it genuinely fits.
Selank is a synthetic analog of tuftsin, a short naturally occurring peptide fragment with a known role in immune signaling. The analog adds a small tail to the sequence, which slows how quickly enzymes break it down. Research interest centers on anxiolytic signaling and on modulation of GABAergic and serotonergic pathways. It was developed in Russia and is available through Promise as a compounded nasal spray after provider review.
A real prescription. Selank on Promise is prescribed by a licensed provider after a review of your health history and compounded for you by a licensed U.S. pharmacy. It is not a product labeled for laboratory use.
No. A licensed provider reviews every Selank request and prescribes only when it is appropriate for you. If it isn't, you'll be told plainly — that review is the point.
Standalone Selank contains one peptide in a nasal spray. Semax / Selank combines both peptides in one nasal preparation. A provider considers the clinical reason for using one compound or the pair rather than treating the blend as a stronger version.
No. Selank is not FDA-approved. It is prepared as a compounded medication, and compounded medications are not reviewed by the FDA for safety, effectiveness, or quality. Selank has never been through a U.S. approval process, and the research supporting it was largely conducted and published in Russia.
Yes. Selank is prescription-only, as everything on Promise is. A licensed provider reviews your intake — your health history, current medications, mental-health history, and what you are trying to address — and prescribes only if Selank is appropriate for you. If your answers point toward a diagnosable anxiety or mood condition, the right response is care from a clinician who can treat it, not a compounded peptide, and a provider will say so and decline.
Selank was developed in Russia, and most of its human literature was produced and published there. The studies exist, but many are small, difficult to appraise independently, and rarely replicated under contemporary Western trial standards.
Selank sold online without a prescription is usually labeled for laboratory use, with no provider, no pharmacy, and no one accountable if something goes wrong. Promise uses a licensed provider review, a patient-specific prescription when appropriate, and a licensed U.S. compounding pharmacy.
The latest from the Promise team on Selank.
A Semax Selank nasal spray puts both peptides in one intranasal liquid, but there is no universal recipe. The route, concentration, pump, and prescription all matter—and Promise's current blend is listed as an injectable vial, not a nasal spray.
Russian human studies most clearly report 2.7 mg per day intranasally for 14 days, but that fixed study protocol is not a personal dosing guide and does not convert to an injectable Semax/Selank blend.
Three small Russian trials, 192 patients, and no placebo arm between them. Here is what that evidence supports, what it doesn't, and where US regulators have landed.
Type a treatment, a goal, or a question.