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Research use only. Not for human use.

PEPTIDES COLLECTIVE
Selank 10mg, black-and-gold research vial illustration
Packaging illustration.

Cognitive and sleep

Selank 10mg

Selank is a synthetic 7-amino-acid analogue of tuftsin (Thr-Lys-Pro-Arg) extended with Pro-Gly-Pro.

Current batch certificate awaiting upload

A$58

per vial

In stock

1

For laboratory research use only. Not for human or veterinary use.

Tracked delivery from Western Australia

PayID and bank transfer

Delivery and payment details

Delivery covers Perth, Melbourne, Sydney, Brisbane and the Gold Coast. Check shipping details for dispatch and carrier information.

Checkout is awaiting the commerce connection. Payment instructions will be provided when checkout is available.

How is this batch tested?

Certificate library
BATCH ID
[batch ID]
LABORATORY
[lab name]
METHOD
HPLC, mass spectrometry
PURITY
[purity]
IDENTITY
[identity result]
NET CONTENT
[mg per vial]
TEST DATE
[test date]

The certificate for the current batch is published here and in the library once the lab report is supplied.

What are its chemical identifiers?

CAS
129954-34-3
PUBCHEM CID
11765600
FORMULA
C33H57N11O9
MOLAR MASS
751.9 g/mol
SEQUENCE
TKPRPGP
LENGTH
7 amino acids

Researchers add these to their order

Together: A$81

Written by [author]. Reviewed by [reviewer].

Updated . How we research and review.

Short answer

Selank is a synthetic heptapeptide analogue of tuftsin (Thr-Lys-Pro-Arg) extended with Pro-Gly-Pro, sold here as a 10mg lyophilised vial from A$58 for laboratory research. Every batch is tested by [lab] before sale, and its certificate is linked below.

What is Selank?

Selank is a synthetic 7-amino-acid analogue of tuftsin (Thr-Lys-Pro-Arg) extended with Pro-Gly-Pro.

It also appears in the literature as Thr-Lys-Pro-Arg-Pro-Gly-Pro, TKPRPGP, Selanc.

Read the full explainer: what is Selank?

What is in each Selank vial?

STRENGTHFORMPRICECERTIFICATE
10mgLyophilised powderA$58Pending

What has research on Selank examined?

Published research on Selank consists mainly of rodent behavioural and gene-expression studies and cell-culture work, largely from Russian groups. One small Russian clinical study in patients with anxiety disorders has been published; large controlled human trials in English-language literature were not found.

The table lists primary sources by year and model. Findings describe the study subjects, not this research vial.

What adverse events have studies of Selank reported?

None of the fetched abstracts reports a specific adverse event caused by Selank. In a Russian study of 70 patients with anxiety disorders, adding Selank to phenazepam was reported to lower phenazepam's side effects (PMID 26356395). A US pharmacology review describes Selank as poorly studied (PMID 34396551).

These findings describe the people or animals in each study. The sources list gives every PubMed record.

How do you reconstitute and store Selank?

Store the sealed vial frozen (about -20 degrees Celsius), dry and away from light until it is reconstituted.

After reconstitution with a sterile solvent, keep the solution at 2 to 8 degrees Celsius and avoid repeated freezing and thawing. Record the solvent, volume and date on the vial label.

BAC Water is the usual laboratory solvent. Dilute acetic acid is an alternative for peptides that dissolve poorly in water. The reconstitution guide and storage guide cover laboratory handling.

STATETEMPERATURENOTES
Sealed vial-20 °CDry and dark. Keeps to the label date.
Reconstituted2 to 8 °CSterile technique. Avoid repeat freeze and thaw.
In transitCold packRefrigerate or freeze on arrival.

Selank is not named in the Poisons Standard (June 2026 instrument). Source: the June 2026 Poisons Standard instrument (F2026L00633).

Selank is not named on WADA's 2026 Prohibited List. WADA's S0 class covers any substance without government approval for human use, so Sport Integrity Australia is the body to confirm its status.

POISONS STANDARD
Not named
WADA 2026
Not named
SALE TERMS
Research use only
Are peptides legal in Australia?

How fast does Selank ship?

Orders placed before [cut-off] leave Western Australia the same business day with tracking, by [carrier]. Delivery estimates for each state are on the shipping page.

How does Selank compare?

Selank questions

Can you get Selank in Australia?

Yes. Peptides Collective sells Selank in Australia for laboratory research use only, at A$58 for 10mg, with a certificate for every batch. Selank is not named in the Poisons Standard (June 2026 instrument).

What has research on selank examined?

Published research on Selank consists mainly of rodent behavioural and gene-expression studies and cell-culture work, largely from Russian groups. One small Russian clinical study in patients with anxiety disorders has been published; large controlled human trials in English-language literature were not found.

What adverse events have studies of selank reported?

None of the fetched abstracts reports a specific adverse event caused by Selank. In a Russian study of 70 patients with anxiety disorders, adding Selank to phenazepam was reported to lower phenazepam's side effects (PMID 26356395). A US pharmacology review describes Selank as poorly studied (PMID 34396551).

Is selank a peptide?

Yes. Selank is a peptide of 7 amino acids.

Is selank a prescription medicine in Australia?

Selank is not named in the Poisons Standard (June 2026 instrument). Peptides Collective sells it for laboratory research use only.

Is selank banned in sport?

Selank is not named on WADA's 2026 Prohibited List. WADA's S0 class covers any substance without government approval for human use, so Sport Integrity Australia is the body to confirm its status.

What is the CAS number for selank?

The CAS number for Selank is 129954-34-3. Its PubChem CID is 11765600.

How long does an unopened selank vial keep?

A sealed vial of lyophilised powder keeps to the date on its label when stored frozen, dry and dark. Once reconstituted, keep the solution at 2 to 8 degrees Celsius and record the date on the label.

Does every selank batch have a certificate?

Yes. Every Selank batch is tested by [lab] before it goes on sale, and the certificate is published under the batch number printed on the vial. The current batch certificate is [pending].

Where is selank shipped from?

Orders ship tracked from Western Australia. Orders placed before [cut-off] leave the same business day. Delivery estimates by state are on the shipping page.

What purity is the current selank batch?

The current Selank batch certificate is [pending]. When it is published, it reports purity by HPLC to three decimal places and confirms identity by mass spectrometry.

Which solvent reconstitutes selank?

BAC Water (sterile water with 0.9% benzyl alcohol) is the usual laboratory solvent. Dilute acetic acid is an alternative for peptides that dissolve poorly in water. Record the solvent, volume and resulting concentration on the vial label.

Sources

  1. 1. [Optimization of the treatment of anxiety disorders with selank]. Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova, 2015. PMID 26356395.
  2. 2. Selank Administration Affects the Expression of Some Genes Involved in GABAergic Neurotransmission. Frontiers in pharmacology, 2016. PMID 26924987.
  3. 3. GABA, Selank, and Olanzapine Affect the Expression of Genes Involved in GABAergic Neurotransmission in IMR-32 Cells. Frontiers in pharmacology, 2017. PMID 28293190.
  4. 4. Sedative-Hypnotic Agents That Impact Gamma-Aminobutyric Acid Receptors: Focus on Flunitrazepam, Gamma-Hydroxybutyric Acid, Phenibut, and Selank. 2021. PMID 34396551.
  5. 5. PubChem CID 11765600. National Library of Medicine.
  6. 6. Poisons Standard, June 2026 instrument (F2026L00633). Federal Register of Legislation.
  7. 7. World Anti-Doping Code, 2026 Prohibited List. WADA.