Buy Selank 2026 — Tuftsin Analogue Heptapeptide for GABA/Cytokine Research (EU)
Selank at a glance
| Designation | Selank (Tuftsin Analogue Heptapeptide) |
|---|---|
| Identity | Synthetic heptapeptide, Tuftsin analogue (derived from the immunopeptide Tuftsin) |
| Synonyms | Tuftsin analogue, TP-7 |
| Research context | GABAergic models, cytokine/immune marker models, tuftsin similarity (in vitro/animal model) |
| CAS number | 129954-34-3 (the batch-specific COA is authoritative) |
| Molecular formula | See CoA |
| Form | Lyophilisate (freeze-dried), white powder, sealed vial |
| Amount | 10 mg per vial |
| Purity | ≥99% (HPLC), identity confirmed by LC-MS |
| Analysis | External third-party laboratory, batch-specific COA |
| Intended use | For Research Use Only (RUO) |
| Price | €49.90 · Shipping from Germany |
What is Selank?
Selank is a synthetically produced Heptapeptide – that is, a chain of seven amino acids. It is an analogue of the immune peptide Tuftsin, a naturally occurring peptide of the immune system, and is also referred to in the literature as a Tuftsin analogue and TP-7. Compared with the original Tuftsin, the sequence has been modified so that the molecule is easier to handle and more stable to characterise for research purposes. Selank is supplied as a stable lyophilisate in a sealed vial (10 mg). In laboratory research, it serves as a defined, well-characterised reference substance. The CAS number and molecular formula are documented in the batch-specific certificate of analysis.
Molecular profile & target structure
As a short heptapeptide, Selank is structurally derived from the Tuftsinmotif – a peptide fragment long described in biochemistry as an immunopeptide. The defined, short sequence and its similarity to Tuftsin make Selank a frequently used model peptide: it can be produced synthetically and reproducibly and is readily accessible analytically, which makes it suitable as a reference in neurobiological and immunobiological study models. In the research literature, Selank is primarily considered in the context of two subject areas – the GABAergic systems and from cytokine and immune markers – in each case exclusively at the level of preclinical models.
What in-vitro and animal model studies document
The following summary reflects only what is described in the publicly accessible preclinical literature – it is not a statement about an effect or suitability in humans.
- tuftsin analog Published studies compare Selank with the natural immune peptide Tuftsin, from which it is structurally derived.
- GABAergic models: Studies in in-vitro and animal models consider Selank in relation to the GABAergic system.
- Cytokine and immune markers: Several papers document observations of cytokine or immune marker patterns in cell and animal models.
- Peptide stability: Selank is used as a synthetic model peptide to characterise the behaviour of short Tuftsin-derived sequences.
These observations originate from in-vitro and animal models. They provide the basis for research interest in Selank, but do not make any statements about safety, efficacy, or use outside of laboratory research.
Purity, COA & Analytical Testing
Purity and identity are the two values that count. HPLC demonstrates purity (target value ≥ 99 %), LC-MS confirms the identity via molecular mass. Both values are listed on the batch-related COA. We explain how to read such a certificate in Understanding and reading a Certificate of Analysis (COA); the procedures themselves in Peptide Purity: HPLC and LC-MS Explained.
Storage & Handling
As a lyophilised product, Selank is stable when stored is kept cool, dry and protected from light and stored – ideally at -20°C for longer storage. Please refer to the COA for batch-specific information. Principles: Storing and Handling Research Peptides.
Buying Selank in the EU – what you need to know
What matters is not the price, but this: Does the label match the contents? Here's what BlitzLab delivers on:
- Batch-specific COA from a third-party laboratory – HPLC (purity) and LC-MS (identity), carried out externally, not by us.
- EU Shipping, discreetly packaged, with tracking – usually 2–5 working days.
- Transparent RUO stance – clear labelling, complete Compliance page, no claims of efficacy or cure.
What else to look out for with a reputable provider: 7-point checklist.
Frequently asked questions about buying Selank
Note on Sources & RUO
This guide summarises publicly available preclinical research literature (in vitro and animal models) on Selank. The accompanying Certificate of Analysis is always authoritative for the identity, CAS number, molecular formula, and purity of the supplied batch. All information is for research purposes only (Research Use Only) and does not constitute medical advice, dosage, or usage recommendations.
Certificate of Analysis, specification, and availability directly on the product page.