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Semax + Selank (Injectable)
Cognitive

Semax + Selank (Injectable)

Focus + calm nootropic blend

All-in monthly price

$259

No membership fee · this is the full price · free shipping · avg 4-week supply

Medication, provider care, labs & dose adjustments — all in one price.
~28-day supply. Your provider sets your exact dose, so yours may vary — your refill arrives as you finish the last one.
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This treatment requires licensed provider review and approval. Treatment is not guaranteed. If prescribed, medication is fulfilled by a licensed U.S. pharmacy where permitted by law. Compounded medications are not FDA-approved or FDA-cleared.

Dr. Gene
Physician Reviewed

Reviewed by Dr. Gene, MD · Board-certified Family Medicine

Every Pepti prescription is reviewed by a licensed U.S. physician before it's dispensed — and only provided if clinically appropriate.

About

Semax + Selank (Injectable)

A compounded blend of semax and selank pairing focus and memory support with calm, anti-anxiety balance. Compounded; not FDA-approved.

Benefits
Semax focus & memory
Selank calm & anti-anxiety
Balanced nootropic
Daily use
Supply per fill
28-day

About a 4-week supply supply at the standard prescribed dose — your physician confirms exact dosing.

Physician review
24 hrs

A licensed US physician reviews your intake and prescribes when appropriate.

FDA-registered pharmacy
503A

Compounded fresh at a US pharmacy and shipped cold-chain to your door.

Shipping, always
Free

Every order ships free — medication, physician care and refills, one all-in price.

Formulation
Injectable vial5 mL
Semax5 mg
Selank5 mg

Amounts shown are per unit. Compounded fresh at a US FDA-registered pharmacy.

Quality

Every batch independently tested

Every medication batch dispensed through Pepti is independently tested by a qualified third-party laboratory for applicable quality and safety standards before the pharmacy releases it. Batches are tested to the same standard used by 503B outsourcing facilities.

USP <71>
Sterility

Confirms the finished preparation is free of viable microorganisms.

USP <85>
Bacterial endotoxins

Screens for endotoxins that can cause fever or inflammatory reactions.

Assay
Potency

Verifies the labeled concentration of the active peptide is what is in the vial.

HPLC
Purity

Checks the active peptide against impurities and degradation products.

Mass spectrometry
Identity

Confirms the peptide in the vial is the correct molecule.

USP <791>
pH

Confirms the solution sits within the range specified for injection.

USP <788>
Particulate matter

Checks the finished vial for visible and sub-visible particles.

USP <1207>
Container closure integrity

Confirms the vial seal holds so sterility is maintained through the beyond-use date.

Recent lots
  • Lot 100526-FOC

    Tested 2026-10-07 · Biolink Life Sciences Carolinas

    Sterility

    Sterile

    Endotoxin

    <2 EU/mL

    Potency

    99.9%

  • Lot 092826-FOC

    Tested 2026-09-30 · Biolink Life Sciences Carolinas

    Sterility

    Sterile

    Endotoxin

    <2 EU/mL

    Potency

    99.9%

  • Lot 092126-FOC

    Tested 2026-09-23 · Biolink Life Sciences Carolinas

    Sterility

    Sterile

    Endotoxin

    <2 EU/mL

    Potency

    98.9%

Compounded by licensed U.S. pharmacies. Prescribed by licensed medical providers. Shipped directly to patients.Documentation available upon request →View lab results by lot →
Your protocol

How Semax + Selank is prescribed.

Who it's for
  • Adults who want focus support and calm in one protocol
  • Patients balancing cognitive performance with stress

Your physician decides whether Semax + Selank is appropriate for you after reviewing your intake and labs.

Directions & duration

Inject 0.25 mL (25 units) subcutaneously once daily Monday through Friday.

Cycle. Daily at your physician's direction.
Ready for more? When you're ready for more, ask your physician to double your dose. If approved, the extra vial is billed at cost and applied to your next fill.
Directions shown are the pharmacy's standard for this preparation. Your prescription label is the final word.
What's included
  • Licensed physician review of your intake, history, and labs
  • Medication compounded to your prescription by a PCAB-accredited, FDA-registered pharmacy
  • Every batch independently tested before release
  • Sterile syringes and alcohol prep pads for injectables
  • Tracked delivery to your door, refills on schedule
  • Message your physician anytime; dose changes without an appointment
Storage & handling
  • Store refrigerated (36–46°F / 2–8°C) at all times, including before first use.
  • One vial is your monthly supply. A fresh vial ships every 28 days on your refill schedule, so you're always well inside the beyond-use date on your label.
  • Protect from light. Wipe the stopper with an alcohol pad before every draw.
  • Dispose of syringes in the sharps container per the included instructions.
What to expect

A typical course of Semax + Selank.

TimeframeWhat patients commonly report
Days 1–7Focus and a calmer baseline are the most commonly reported early changes.
Weeks 2–4Effects tend to be most consistent with daily use.
OngoingLong-term treatment. Your physician adjusts the dose over time as your goals evolve.
Individual results vary. Compounded medications are not FDA-approved; a licensed physician determines whether treatment is appropriate and monitors your progress.
The full reference

Everything published
about Semax + Selank.

How it is described to work, pathway by pathway. What the research shows and what it does not. Where it stands with the FDA, dated and sourced.

Read the reference
2
References

peer-reviewed, each verified on PubMed

14
Sections

mechanism, evidence, dosing, safety, FAQ

Sep 24
FDA status verified

2026 · checked against fda.gov, not memory

The science

How Semax + Selank works, and what the research shows.

How it works

Combines Russia's two best-known therapeutic neuropeptides: Semax (an ACTH-fragment nootropic that upregulates BDNF, supporting focus and cognitive resilience) with Selank (a tuftsin-analog anxiolytic that calms GABAergic signaling without sedation) — targeting sharper cognition and lower anxiety simultaneously.

Clinical evidence
  • Both peptides are approved medicines in Russia — Semax for stroke and cognitive indications, Selank for anxiety — each supported by Russian clinical trials.

  • That evidence has not been replicated in Western randomized controlled trials, so the combination is prescribed off-label in the US as an investigational cognitive protocol.

Full references with PubMed links are listed further down the page.

References

  1. Dolotov OV, Karpenko EA, Inozemtseva LS et al.. Semax, an analog of ACTH(4-10) with cognitive effects, regulates BDNF and trkB expression in the rat hippocampus · Brain Res (2006) · PMID 16996037
  2. Panikratova YR, Lebedeva IS, Sokolov OY et al.. Functional Connectomic Approach to Studying Selank and Semax Effects · Dokl Biol Sci (2020) · PMID 32342318

Citations are provided for educational purposes. They do not constitute medical advice. Always discuss any peptide protocol with your prescribing physician.

How supplied

vial containing 1 mg Semax + 1 mg Selank

Common questions

Frequently asked
about Semax + Selank (Injectable).

A compounded blend of semax and selank pairing focus and memory support with calm, anti-anxiety balance. Compounded; not FDA-approved. Semax + Selank is prescription-only at Pepti: a licensed physician reviews your assessment and, if appropriate, prescribes it to be compounded by a state-licensed, FDA-registered pharmacy.

31 more questions about Pepti, answered.

One vial is your monthly supply at the dose your physician prescribes. A fresh vial ships about every 28 days, and the date moves if your physician changes your dose. Store it as the pharmacy label directs, refrigerated.

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Pharmacy network accreditation

PCAB-accredited pharmacies on every order.

Every fulfillment runs through a PCAB-accredited pharmacy.

See the lab results
PCAB — Pharmacy Compounding Accreditation Board · Accredited
  • Rigorous third-party quality & safety inspections
  • Cleanliness and sterile processes
  • Proper ingredient sourcing
  • Accurate dosing and formulation
  • Staff training and procedures
  • Accredited by NABP & ACHC