Peptides  /  Semax / Selank
For Adults · Compounded Blend

Semax / Selank

Two Russian-developed nootropic peptides.

A two-peptide blend combining Semax, an ACTH(4-10) fragment analog, with Selank, a synthetic analog of the immunopeptide tuftsin. Prescribed after a licensed provider reviews your online visit.

$349

Start your online visit →

A few private questions, then a licensed provider reviews your answers.

100% Online 503A Compounded Licensed Providers Discreet Shipping
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At a glance
Form
Injection
Cadence
Set by your provider
Class
ACTH and tuftsin analogs
Guided by
Provider review
Helps with
Cognitive category
For
Adults 18+
The basics

What is Semax / Selank?

What it is
ACTH and tuftsin analogs
Forms
Injection
Supplied as
5mg / 5mg · 10mg / 10mg
Dosing
Set by your prescriber
Supply
1-month or 3-month
Visit
Online, reviewed by a licensed provider
Prescription
Provider-reviewed · not available OTC
Shipping
Discreet, unmarked · most U.S. states
Start your online visit →

Semax is a synthetic analog of a fragment of adrenocorticotropic hormone, ACTH(4-10), modified so it has no hormonal activity. Selank is a synthetic analog of tuftsin, an endogenous immunomodulatory peptide. Both were developed in Russia and are registered medicines there.

Neither is approved in the United States, and neither has been evaluated by the FDA. What is dispensed here is a compounded preparation.

This is a compounded preparation, not an FDA-approved medication, and compounded drugs are not reviewed by the FDA for safety or effectiveness. Individual results are not guaranteed. It is prescribed only where a licensed provider determines it is appropriate after reviewing your health history.

Why people ask about it

Why does Semax / Selank come up?

Both peptides are registered medicines in Russia — Semax for cerebrovascular and cognitive indications, Selank for anxiety — and most of the published work on them is in Russian-language journals. That evidence has not been replicated in the trials a U.S. approval would require.

✔A provider decides, not a quiz

Every Semax / Selank prescription here follows a review by a licensed provider of your health history, current medications and goals. If it isn't appropriate for you, it isn't prescribed.

✔Compounded, not a research chemical

Your vial is compounded by a licensed U.S. 503A pharmacy and dispensed against a prescription written in your name — not sold as a "research only" product with no oversight.

Know the difference

Prescribed Semax / Selank vs. supplements and grey-market vials — what's the difference?

The short answer: unregulated supplements make claims nobody checks, "research only" vials sold online carry no prescription, no pharmacy and no accountability, and a prescribed Semax / Selank is compounded by a licensed 503A pharmacy against a provider's order written for you.

 Oral supplement"Research only" vialPrescribed Semax / Selank (Rx)
What it isAn unregulated oral precursorA vial sold without a prescriptionCompounded Semax / Selank dispensed on a provider's order
Licensed provider reviews youNoNoYes — before anything is dispensed
Compounded by a licensed pharmacyNoNoYes — U.S. 503A
Your name on the vialNoNoYes
Dose set by a prescriberNoNoYes
Legal to sell for human useAs a supplementNoYes — by prescription

The simplest test of any peptide seller: is your name on the vial? A "research only" label means no prescriber reviewed you, no licensed pharmacy compounded it, and nobody is accountable for what is actually inside.

How it works

How does getting Semax / Selank actually work?

Three steps: answer a short set of medical questions, a licensed provider reviews them, and if they prescribe, a 503A pharmacy compounds and ships it.

I

Answer a few questions

A short private medical questionnaire — your history, current medications and what you are hoping to address. It takes a couple of minutes.

II

Meet your provider live

A provider licensed in your state reviews your answers online — no appointment, no waiting room. They decide whether Semax / Selank is appropriate.

III

Compounded & shipped

If they prescribe, a licensed U.S. 503A pharmacy compounds your vial and ships it discreetly, with your name on the label.

Who it's for

Who is Semax / Selank for?

It's for adults who want Semax / Selank prescribed and compounded properly rather than bought from a grey market. Whether it is appropriate for you is a decision for the provider who reviews your visit.

✔Interested in the cognitive category

Semax and Selank are studied in cognition and anxiety respectively, primarily in Russian literature.

✔You want a real prescription

Reviewed by a licensed provider, compounded by a 503A pharmacy, dispensed with your name on the vial.

✔You want the dosing decided for you

Vial contents are fixed; amount and schedule are set by your prescriber.

✔You prefer one vial to two

Both peptides are compounded together as a single injection.

✕When it's not the right fit

Neither peptide is FDA-approved and this blend is not a treatment for anxiety, depression or any cognitive disorder. If you are experiencing those symptoms, they deserve proper evaluation. Tell your provider about any psychiatric medication before starting. If you are pregnant or breastfeeding, have an active cancer diagnosis, or have significant kidney or liver disease, tell your provider in your answers. New or unexplained symptoms should be evaluated by a clinician rather than self-treated.

How to get it

How do I get Semax / Selank online?

You answer a few questions, a licensed provider reviews your answers, and — if they prescribe — your medication is compounded and shipped to your door. No insurance required, no in-person appointment, no waiting room.

A few questions

Answer a short set of private medical questions. Add as many peptides as you like; one checkout, and a provider reviews each.

Online provider review

A provider licensed in your state reviews your answers online. Approval is never guaranteed.

Discreet delivery

If prescribed, your vial is compounded by a 503A pharmacy and ships in plain, unmarked packaging to most U.S. states.

Pricing is shown at checkout — no insurance needed, no hidden fees.

Using it & safety

How is it taken, and is it safe?

Semax / Selank is compounded as injection. The amount and the schedule are set by the provider who reviews your visit — we deliberately do not publish a dosing regimen here, because that is a clinical decision about you, not a product specification.

Forms & how it's taken

Injection
Compounded as injection.
Supplied as
5mg / 5mg · 10mg / 10mg. Which one you receive is part of the prescription.
Dose & schedule
Set by your prescriber. Follow the directions on your label.
Supply
1-month or 3-month. Three months costs less per month.
Injection5mg / 5mg10mg / 10mgProvider-set

Safety & side effects

⚠ Not a treatment for anxiety or any cognitive condition

Neither peptide is FDA-approved and this blend is not a treatment for anxiety, depression or any cognitive disorder. If you are experiencing those symptoms, they deserve proper evaluation. Tell your provider about any psychiatric medication before starting.

Reported effects are most often related to the injection itself or to infusing too quickly. They can include:

  • Injection-site reactions
  • Headache
  • Changes in mood or alertness
  • Nasal irritation with intranasal formulations

Tell your provider about every condition and medication before starting, including pregnancy or breastfeeding. Stop and seek care for signs of an allergic reaction — rash, swelling of the face or throat, or difficulty breathing. For emergencies call 911.

Compare your options

Which cognitive peptide fits you?

A side-by-side look at the cognitive options available through ForbiddenRx. Which one is appropriate for you is decided by the provider who reviews your visit.

TreatmentWhat it isFocusFormForRx required
Semax / Selank
This page		ACTH and tuftsin analogsCognitive categoryInjectionAdults 18+Yes
DSIPNonapeptideSleep & recovery categoryInjectionAdults 18+Yes
Pinealon / PE22-28 / SelankShort peptide combinationCognitive categoryInjectionAdults 18+Yes
EpithalonSynthetic tetrapeptideLongevity categoryInjectionAdults 18+Yes
Questions, answered

Semax / Selank FAQ

What is in this blend?

Semax, an analog of the ACTH(4-10) fragment modified to remove hormonal activity, and Selank, a synthetic analog of the immunopeptide tuftsin. The milligrams of each are shown on the strength selector.

Are these approved anywhere?

Both are registered medicines in Russia. Neither is approved in the United States, and neither has been evaluated by the FDA.

Can this treat my anxiety?

No. It is not a treatment for anxiety or any psychiatric condition. Raise those symptoms in your online visit so a clinician can tell you what is actually appropriate.

Do I have to book an appointment?

No. You complete the questionnaire online and a licensed provider reviews it — there is no scheduling step and no waiting room.

Can I order more than one peptide?

Yes. Add each one to your cart and check out once. A provider reviews every treatment in your order.

Credibility you can verify

Care held to a higher standard

Licensed Providers

U.S. board-certified clinicians

503A Pharmacies

U.S.-based compounding partners

Most U.S. States

We confirm your state during intake

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Category

The Peptide Catalog

Every peptide we can dispense, each prescribed by a licensed provider and compounded by a 503A pharmacy.

Learn more →

Start with a real prescription

If you are going to take Semax / Selank, take one a licensed provider prescribed and a 503A pharmacy compounded with your name on it. Answer a few questions and a licensed provider reviews them.

Start your online visit →

  • Discreet, unmarked packaging
  • Refills so you never miss a dose
  • Labs guiding every adjustment
  • Licensed providers in most U.S. states
Medically reviewed

Sources & references

Medically reviewed by ForbiddenRx Medical Affairs — Independent, licensed medical providers · Last reviewed August 2026. This page was written and is periodically reviewed for medical accuracy in line with clinical guidance followed by the independent, licensed medical providers in the ForbiddenRx network. It is provided for general educational purposes and is not a substitute for professional medical advice, diagnosis, or treatment. Always talk with a licensed provider about your individual health.

  1. Ashmarin IP et al. Semax, an ACTH(4-10) analogue with nootropic properties. Neuroscience Research Communications.
  2. Zozulya AA et al. The efficacy of Selank in anxiety disorders. Experimental and Clinical Pharmacology.
  3. U.S. Food & Drug Administration. Compounding and the FDA: questions and answers — the regulatory basis for how this preparation is dispensed.
For further reading

Clinical references

This page is educational and is not medical advice.