Semax Selank Peptide Blend for Sale
Published by Peptara Labs · Updated · How we research and check our pages
10mg Semax and 10mg Selank, One Vial
Semax Selank peptide blend from Peptara Labs (peptaralabs.io) is one 20mg research vial that holds 10mg of Semax and 10mg of Selank, priced at $70 USD, at its pre-sale price: 50% off the regular $140 until October 15, 17:00 UTC. Its batch certificate of analysis is pending, so no purity figure is claimed yet. Ships October 28. After dispatch: 5 to 10 business days. It is sold for research use only.
Pre-sale price, 50% off, ends October 15, 17:00 UTC
Flat $35 tracked shipping20mg (10mg + 10mg) per vial
Ships October 28
$70 USD
Was $140
The pre-sale price applies at every quantity. No code or multi-vial pricing is added to it.
Shipping, delivery and certificate status
- Shipping
- Flat $35, tracked worldwide to supported markets
- Delivery
- Ships October 28 · After dispatch: 5 to 10 business days
- Included
- Vial · Batch certificate pending · Order support on WhatsApp
Buyer facts
What do you get when you buy the Semax + Selank blend from Peptara Labs?
One sealed vial holds 10mg of Semax and 10mg of Selank as freeze-dried powder. The total is 20mg. The blend's batch certificate is pending, and the separate Semax and Selank certificates do not verify this vial.
| Detail | Semax + Selank Blend | Where to check it |
|---|---|---|
| Vial | One sealed 20mg vial of lyophilized powder, which means freeze-dried powder. | Catalog specification |
| Semax per vial | 10mg | Catalog specification |
| Selank per vial | 10mg | Catalog specification |
| Price | $70 USD, at its pre-sale price: 50% off the regular $140 until October 15, 17:00 UTC | Order panel |
| Availability | It is on pre-order. Ships October 28. | Order panel |
| Certificate | Batch certificate pending | Certificate status |
| Purity | No purity figure is claimed while the batch certificate is pending. | Certificate status |
| Shipping and delivery | Ships October 28 · After dispatch: 5 to 10 business days | Delivery information with the order |
| Status | Research use only. | Research catalog |
Each peptide is also sold on its own: Semax and Selank.
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Before you buy
What should you check before you buy a Semax and Selank blend?
A blend certificate should identify both peptides and give an amount for each. One purity number for the whole vial cannot show how much Semax and how much Selank it holds. A Belgian medicines testing team developed a method to tell the two apart in seized products.
The supplier has not confirmed whether this vial holds plain Semax and Selank or modified N-acetyl or amidate forms. The sequences on this page describe the plain study materials. A supplier specification or the batch certificate must confirm this vial's contents.
The FDA lists both peptides among substances it flagged for possible immune reactions from aggregation, which means peptides clumping together, and peptide-related impurities. It says important safety information is missing for both.
This batch's certificate is pending. No purity figure is claimed yet. Read how to verify peptide purity and check the certificate status before comparing lab claims.
Sources: Vanhee et al., 2020. Drug Testing and Analysis. PMID 31667971. DOI 10.1002/dta.2717. U.S. FDA. Certain bulk drug substances that may present significant safety risks. Updated April 22, 2026; read October 7, 2026.
The short answer
What are Semax and Selank?
Semax and Selank are two different peptides, each seven amino acids long. Most of the studies cited here came from Russian research groups. Semax is built on part of ACTH, a hormone. Its sequence is Met-Glu-His-Phe-Pro-Gly-Pro.
Selank is built on tuftsin, a short immune peptide. Its sequence is Thr-Lys-Pro-Arg-Pro-Gly-Pro. Both end in the same three amino acids, Pro-Gly-Pro, but their other amino acids differ. Their shared ending does not establish a result for a blend.
Sources: Dolotov et al., 2006. Brain Research. PMID 16996037. DOI 10.1016/j.brainres.2006.07.108. Zozulya et al., 2001. Bulletin of Experimental Biology and Medicine. PMID 11550013. DOI 10.1023/a:1017979514274. Kolomin et al., 2014. Molecular Immunology. PMID 24291245. DOI 10.1016/j.molimm.2013.11.002.
The science
How Semax and Selank work in research models
Researchers studied each peptide on its own. The measurements below describe those tests, and none describes this two-peptide vial.
Semax and BDNF
In rats, researchers measured BDNF, a growth signal for nerve cells. Its protein level was 1.4 times higher in the hippocampus, a brain region involved in memory. Activation of its receptor, trkB, was 1.6 times higher.
Selank and enkephalins
In blood plasma tests, Selank slowed enzymes that break down enkephalins. Enkephalins are natural opioid peptides; enzymes are proteins that drive chemical reactions.
Both slow the same enzymes
Tested separately in blood serum, both peptides slowed the enzymes that break down enkephalins. Each did so more strongly than the standard lab inhibitors used in that test.
Sources: Dolotov et al., 2006. Brain Research. PMID 16996037. DOI 10.1016/j.brainres.2006.07.108. Zozulya et al., 2001. Bulletin of Experimental Biology and Medicine. PMID 11550013. DOI 10.1023/a:1017979514274. Kost et al., 2001. Bioorganicheskaya Khimiya. PMID 11443939. DOI 10.1023/a:1011373002885.
Applications
Common research areas
Memory and learning models
Rat studies examined Semax, BDNF and its receptor in the hippocampus.
Anxiety-like behavior in rats
A maze test compared the separate peptides in rats with Parkinson-like nerve damage.
Brain scan measurements
A small study compared Semax, Selank and placebo in separate groups using resting-state fMRI, a scan of brain activity at rest.
Lab identification
Testing teams developed mass spectrometry methods, which identify molecules by their mass, for peptides in seized products.
Sources: Dolotov et al., 2006. Brain Research. PMID 16996037. DOI 10.1016/j.brainres.2006.07.108. Slominsky et al., 2017. Doklady Biological Sciences. PMID 28702721. DOI 10.1134/S0012496617030048. Panikratova et al., 2020. Doklady Biological Sciences. PMID 32342318. DOI 10.1134/S001249662001007X. Vanhee et al., 2020. Drug Testing and Analysis. PMID 31667971. DOI 10.1002/dta.2717.
Comparison
Semax vs Selank: how do they differ?
| Detail | Semax | Selank |
|---|---|---|
| Built on | A fragment of ACTH | Tuftsin |
| Studied around | BDNF and its receptor in rats | Enkephalin breakdown and anxiety-like behavior in rats |
| Sequence | Met-Glu-His-Phe-Pro-Gly-Pro | Thr-Lys-Pro-Arg-Pro-Gly-Pro |
The fuller comparisons are on the Semax page and in peptides in cognition research.
Sources: Dolotov et al., 2006. Brain Research. PMID 16996037. DOI 10.1016/j.brainres.2006.07.108. Zozulya et al., 2001. Bulletin of Experimental Biology and Medicine. PMID 11550013. DOI 10.1023/a:1017979514274. Kolomin et al., 2014. Molecular Immunology. PMID 24291245. DOI 10.1016/j.molimm.2013.11.002. Slominsky et al., 2017. Doklady Biological Sciences. PMID 28702721. DOI 10.1134/S0012496617030048.
Evidence
Has anyone studied Semax and Selank together?
Not as one mixture. A PubMed search for both names on October 7, 2026 returned 14 records. Studies that tested both used them separately: an enzyme test in blood serum, a rat study and a brain scan study.
None tested the two together in one vial, so no result on this page is a result for the blend. A result for each separate peptide cannot establish how this vial behaves.
Sources: PubMed search for semax AND selank, October 7, 2026: 14 records. Kost et al., 2001. Bioorganicheskaya Khimiya. PMID 11443939. DOI 10.1023/a:1011373002885. Slominsky et al., 2017. Doklady Biological Sciences. PMID 28702721. DOI 10.1134/S0012496617030048. Panikratova et al., 2020. Doklady Biological Sciences. PMID 32342318. DOI 10.1134/S001249662001007X.
Study findings
What did the Semax and Selank studies measure?
Dolotov et al., 2006
Model: Rats; Semax tested on its own.
Measured or reported: BDNF protein and trkB receptor activation in the hippocampus.
Zozulya et al., 2001
Model: Blood plasma; Selank tested on its own.
Measured or reported: Slower enzyme breakdown of enkephalins.
Kost et al., 2001
Model: Blood serum; each peptide tested separately.
Measured or reported: Both slowed enkephalin breakdown more strongly than the standard lab inhibitors in that test.
Slominsky et al., 2017
Model: Rats with Parkinson-like nerve damage; each peptide tested separately.
Measured or reported: Neither changed movement. Selank alone lowered anxiety-like behavior in a maze test.
Panikratova et al., 2020
Model: Small brain scan study; Semax, Selank and placebo in separate groups.
Measured or reported: Shared and separate changes in connections between the right amygdala and temporal cortex, two brain regions.
ClinicalTrials.gov searches on October 7, 2026 returned 0 studies for Semax and 10 text matches for Selank. None of those matches was a study of Selank. None of it is a result for any reader.
Sources: Dolotov et al., 2006. Brain Research. PMID 16996037. DOI 10.1016/j.brainres.2006.07.108. Zozulya et al., 2001. Bulletin of Experimental Biology and Medicine. PMID 11550013. DOI 10.1023/a:1017979514274. Kost et al., 2001. Bioorganicheskaya Khimiya. PMID 11443939. DOI 10.1023/a:1011373002885. Slominsky et al., 2017. Doklady Biological Sciences. PMID 28702721. DOI 10.1134/S0012496617030048. Panikratova et al., 2020. Doklady Biological Sciences. PMID 32342318. DOI 10.1134/S001249662001007X. ClinicalTrials.gov searches for Semax and Selank, October 7, 2026.
Research timeline
How the Semax and Selank record was built
Research timeline
How the Semax and Selank record was built
Research timeline
Separate peptides, separate tests
2001: enzyme tests
Plasma and serum tests examined how the separate peptides changed the breakdown of enkephalins.
2006: Semax in rats
Researchers measured BDNF protein and activation of its receptor in the hippocampus.
2017: a rat model
Semax and Selank were tested separately for movement and anxiety-like behavior in rats with nerve damage.
2020: scans and lab identity
Separate groups took part in a brain scan study. Another team developed tests to identify peptides in seized products.
2026: FDA safety list
The FDA list flagged possible immune reactions and missing safety information for both peptides.
Sources: Zozulya et al., 2001. Bulletin of Experimental Biology and Medicine. PMID 11550013. DOI 10.1023/a:1017979514274. Kost et al., 2001. Bioorganicheskaya Khimiya. PMID 11443939. DOI 10.1023/a:1011373002885. Dolotov et al., 2006. Brain Research. PMID 16996037. DOI 10.1016/j.brainres.2006.07.108. Slominsky et al., 2017. Doklady Biological Sciences. PMID 28702721. DOI 10.1134/S0012496617030048. Panikratova et al., 2020. Doklady Biological Sciences. PMID 32342318. DOI 10.1134/S001249662001007X. Vanhee et al., 2020. Drug Testing and Analysis. PMID 31667971. DOI 10.1002/dta.2717. U.S. FDA. Certain bulk drug substances that may present significant safety risks. Updated April 22, 2026; read October 7, 2026.
Your Kit
What's Included
$70 USD Was $140 USD
Flat $35 tracked shipping · Ships October 28 · Batch certificate pending · Order support on WhatsApp
Pre-sale price, 50% off, ends October 15, 17:00 UTC
Semax + Selank Blend 20mg (10mg + 10mg) Vial
20mg (10mg + 10mg) per vial
Batch certificate
Batch certificate pending
Delivery
Ships October 28 · After dispatch: 5 to 10 business days
Order support
Contact our team about your order or batch certificate.
Your order includes the vial. Batch certificate pending. Delivery details are confirmed with your order. Order support is available on WhatsApp.
Your Research Order
Semax + Selank Blend research vial, batch certificate status, delivery and order support.
Batch certificate
Batch certificate pending
Delivery
Ships October 28 · After dispatch: 5 to 10 business days
Order support
Contact our team about your order or batch certificate.
Research and citations
Peer-reviewed and regulator sources
- Dolotov et al., 2006. Brain Research. PMID 16996037. DOI 10.1016/j.brainres.2006.07.108.
- Zozulya et al., 2001. Bulletin of Experimental Biology and Medicine. PMID 11550013. DOI 10.1023/a:1017979514274.
- Kolomin et al., 2014. Molecular Immunology. PMID 24291245. DOI 10.1016/j.molimm.2013.11.002.
- Kost et al., 2001. Bioorganicheskaya Khimiya. PMID 11443939. DOI 10.1023/a:1011373002885.
- Slominsky et al., 2017. Doklady Biological Sciences. PMID 28702721. DOI 10.1134/S0012496617030048.
- Panikratova et al., 2020. Doklady Biological Sciences. PMID 32342318. DOI 10.1134/S001249662001007X.
- U.S. FDA. Certain bulk drug substances that may present significant safety risks. Updated April 22, 2026; read October 7, 2026.
- Vanhee et al., 2020. Drug Testing and Analysis. PMID 31667971. DOI 10.1002/dta.2717.
- ClinicalTrials.gov searches for Semax and Selank, October 7, 2026. Selank search.
- PubMed search for semax AND selank, October 7, 2026: 14 records.
Explore more
Related guides, comparisons, and compounds studied for related endpoints
Semax
The single-peptide vial and its own research record.
Selank
The single-peptide vial and its own research record.
Semax price per vial
The separate Semax product and catalog price.
Selank price per vial
The separate Selank product and catalog price.
Peptides in cognition research
A wider comparison of the studies and their limits.
DSIP
Another neuropeptide in the research catalog.
P21 (P021)
Another cognition research compound, studied in animal models.
What are peptides?
Plain definitions of peptides and research material.
Certificates of analysis
Published certificates and pending batch status.
How to verify peptide purity
What a batch certificate should show.
Research catalog
Browse research vials and current availability.
Buying the Semax + Selank blend: FAQ
Is the Semax + Selank blend in stock?
It is on pre-order. Ships October 28. Delivery windows start after dispatch.
What does the Semax + Selank blend cost?
One 20mg vial is $70 USD at the pre-sale price, 50% off the standard $140 until October 15, 17:00 UTC. No additional discount is added to this price.
How much of each peptide is in the vial?
10mg of Semax and 10mg of Selank, 20mg in total.
Does this blend have a certificate of analysis?
Not yet. The batch certificate is pending, so no purity figure is claimed for this vial.
Semax and Selank research FAQ
Has the Semax and Selank combination been studied?
Not as one mixture. In the PubMed search dated October 7, 2026, studies that included both tested them separately. None tested them together in one vial.
What do the safety records say about Semax and Selank?
The FDA says it lacks important safety information on both and flags a possible risk of immune reactions from aggregation and peptide-related impurities in compounded products. Searches of ClinicalTrials.gov on October 7, 2026 found no registered study of either peptide.
How are Semax and Selank different?
Semax is built on a piece of the hormone ACTH and is studied around BDNF, a growth signal for nerve cells. Selank is built on tuftsin, a short immune peptide, and is studied around enkephalins and anxiety-like behavior in animals.
Sources: PubMed search for semax AND selank, October 7, 2026: 14 records. Kost et al., 2001. Bioorganicheskaya Khimiya. PMID 11443939. DOI 10.1023/a:1011373002885. Slominsky et al., 2017. Doklady Biological Sciences. PMID 28702721. DOI 10.1134/S0012496617030048. Panikratova et al., 2020. Doklady Biological Sciences. PMID 32342318. DOI 10.1134/S001249662001007X. U.S. FDA. Certain bulk drug substances that may present significant safety risks. Updated April 22, 2026; read October 7, 2026. ClinicalTrials.gov searches for Semax and Selank, October 7, 2026. Dolotov et al., 2006. Brain Research. PMID 16996037. DOI 10.1016/j.brainres.2006.07.108. Zozulya et al., 2001. Bulletin of Experimental Biology and Medicine. PMID 11550013. DOI 10.1023/a:1017979514274. Kolomin et al., 2014. Molecular Immunology. PMID 24291245. DOI 10.1016/j.molimm.2013.11.002.
Order Semax + Selank Blend, 20mg (10mg + 10mg) vial
Order Semax + Selank Blend. Ships October 28 · After dispatch: 5 to 10 business days. Order support on WhatsApp.
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