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Selank 10 mg lyophilized research peptide vial, PRIMEGEN LABS front label. Buy Selank 10 mg from PrimeGen Labs — 99.3% purity lyophilized Selank peptide for laboratory research, third party tested by HPLC and mass spectrometry, supplied in a sealed 10 mL borosilicate vial with a batch-matched certificate of analysis.

Longevity & Cellular Research

Selank

Tuftsin analog heptapeptide

In stock

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Synthetic tuftsin analog studied in anxiolytic and neuroimmune signalling research.

$30.00
  • Third-party tested
  • Ambient-stable transit
  • Lot traceable
  • Batch-matched COA
  • Tracked delivery
  • Research use only

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

Laboratory specifications

Purity (RP-HPLC)
99.737%
Molecular formula
C33H57N11O9
Molecular weight
751.9 g/mol
CAS number
129954-34-3
Form
Lyophilized powder
Appearance
White to off-white lyophilized powder or cake, free of visible particulates.
Solubility
Sterile or bacteriostatic water; DMSO for hydrophobic sequences
Endotoxin
< 0.25 EU/mg
Fill weight
10 mg
Storage temperature
-20 °C sealed · 2–8 °C after reconstitution
Shelf life
36 months at -20 °C from the manufacture date
Reconstitution
Add diluent slowly down the vial wall; do not shake or vortex
Synthesis
Solid-phase (SPPS)
Identity
ESI-MS confirmed
Residual solvent
< 0.5%
Closure
Crimped aluminium / butyl stopper
Manufacturer
PRIMEGEN LABS · PrimeGen Co.

Storage & handling

  • Long-term

    -20 °C, sealed, desiccated

  • In transit

    Ambient stable up to 21 days

  • After reconstitution

    2–8 °C, use within 21 days

  • Light exposure

    Protect from direct light

Certificate of analysis

Janoshik Analytical report #109671 · sample submitted as Selank 11 mg.

Lot number
XX
EXP
XX/XXXX
COA date
19 Feb 2026
Testing laboratory
Janoshik Analytical
Purity
99.737%
Testing method
RP-HPLC + ESI-MS
Batch status
Released
Measured content
12.47 mg
Verification key
B6BNBCUNGJ8C
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Research background

Selank is a synthetic heptapeptide constructed from the tetrapeptide tuftsin extended with a Pro-Gly-Pro stabilising tail. The tail was added specifically to slow enzymatic degradation, making Selank a common case study in peptide stabilisation design.

Mechanism of action

Research reports modulation of GABA-A receptor subunit expression, altered monoamine turnover, and changes in brain-derived neurotrophic factor and enkephalin-degrading enzyme activity in rodent models. It does not appear to act as a direct high-affinity receptor agonist.

Areas of scientific investigation

  • GABAergic and monoamine neurotransmission
  • Anxiolytic behavioural models in rodents
  • Peptide stabilisation via Pro-Gly-Pro extension
  • Neurotrophic factor expression studies

Listed fields describe where this sequence appears in published in vitro and preclinical literature. They are not indications, applications, or claims of effect.

Laboratory handling

Reconstitution

Allow the vial to reach room temperature before opening to prevent condensation on the lyophilized cake. Add sterile or bacteriostatic water slowly down the inner wall of the vial, then let the powder dissolve without agitation; swirl gently if needed. Do not shake or vortex — shear forces denature peptide secondary structure and cause foaming that traps material on the stopper.

Stability

As a sealed lyophilized powder the material is stable for extended periods at -20 °C when kept desiccated and protected from light. Once in solution, stability shortens considerably: aqueous stocks are normally held at 2-8 °C for short term work or aliquoted and frozen for longer storage. Repeated freeze-thaw cycling is the most common cause of measurable potency loss.

Packaging

Single sequence per vial, sealed under inert gas in USP Type I borosilicate glass with a butyl rubber stopper and crimped aluminium overseal. Each vial carries a printed PRIMEGEN LABS label with product name, strength, lot number, manufacture and retest dates, storage temperature and a QR code linking to the lot record. Vials ship in a rigid foam insert inside a protective mailer at ambient temperature.

Frequently asked questions

Compare with similar compounds

Selank vs Semax, Dihexa

Open full comparison
Selank compared with similar research compounds
CompoundStrengthCategoryMolecular weightAvailabilityPrice
SelankThis page10 mgLongevity & Cellular Research751.9 g/molIn stock$30.00
Semax10 mgLongevity & Cellular Research813.9 g/molIn stock$30.00
Dihexa10 mgSpecialty Research489.7 g/molLow stock · few lots left$129.00

Complete your order

Laboratory consumables matched to 1 vial in your cart.

  • Bacteriostatic Water — 30 mL

    Bacteriostatic Water

    30 mL

    1 × 30 mL — one vial of diluent per 3 peptide vials

    $16.00
  • Sterile Syringes — 10-pack · 1 mL

    Sterile Syringes

    10-pack · 1 mL

    10-pack covers a standard order

    $13.00
  • Alcohol Prep Pads — 100-pack

    Alcohol Prep Pads

    100-pack

    Septum decontamination before every draw

    $9.00
  • Vial Storage Case — 25 slots

    Vial Storage Case

    25 slots

    Keeps lots organised and light-protected

    $33.00

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