- Purity (raw materials): ≥99% by HPLC per peptide
- Lot-matched certificate of analysis
- Ships next business day, tracked
Selank + Semax Dissolving Strips
Selank and Semax in a pre-measured fast-dissolving thin-film format, 20 strips
- FormFast-dissolving thin-film strips in a sealed pack
- Research areasAttention and memory paradigms, BDNF and neurotrophin expression, GABAergic transmission, stress-response models, delivery-format comparison
Overview
Selank + Semax Dissolving Strips deliver two well-characterised research heptapeptides in a pre-measured thin-film matrix rather than a vial of lyophilized powder. Each pack contains 20 individual film strips. The film is a water-soluble polymer sheet in which the peptide load is dispersed at a fixed amount per strip, so a study arm can be set up by counting strips instead of weighing powder, calculating a dilution and sterile-filtering a solution.
The two actives are Selank (CAS 129954-34-3, Thr-Lys-Pro-Arg-Pro-Gly-Pro) and Semax (CAS 80714-61-0, Met-Glu-His-Phe-Pro-Gly-Pro). Both are short synthetic peptides built by extending a natural bioactive fragment — tuftsin for Selank, the ACTH(4–10) fragment for Semax — with a C-terminal Pro-Gly-Pro tail that resists exopeptidase cleavage. Both are freely water-soluble, which is what makes them suitable candidates for a dissolving-film carrier: the strip disperses in aqueous media and releases its load without an organic solvent step.
Research interest in the pairing comes from their complementary mechanistic literatures. Semax dominates work on BDNF and NGF expression, TrkB signalling and attention or memory paradigms; Selank dominates work on GABA-A receptor subunit expression, enkephalin-degrading enzyme inhibition and stress-response gene expression. The film format is studied mainly as a handling and format-comparison variable rather than for any biological property of its own.
Specifications
Identity
- Peptide class
- Synthetic heptapeptides — tuftsin analogue and ACTH(4–10) analogue
Supply & purity
- Form
- Fast-dissolving thin-film strips in a sealed pack
Additional detail
- Pack size
- 20 individual film strips
- Actives
- Selank and Semax, pre-loaded at a fixed amount per strip
- Purity (raw materials)
- ≥99% by HPLC per peptide; lot-matched COA available
- Selank CAS number
- 129954-34-3
- Selank formula and weight
- C33H57N11O9; 751.89 g/mol
- Selank sequence
- Thr-Lys-Pro-Arg-Pro-Gly-Pro
- Semax CAS number
- 80714-61-0
- Semax formula and weight
- C37H51N9O10S; 813.93 g/mol
- Semax sequence
- Met-Glu-His-Phe-Pro-Gly-Pro
- Research areas
- Attention and memory paradigms, BDNF and neurotrophin expression, GABAergic transmission, stress-response models, delivery-format comparison
- Storage
- Sealed, cool and dry, protected from light and moisture
Units and conversions
There is no reconstitution step for a solid oral format: the mass per unit of Selank + Semax Dissolving Strips is fixed on the label. Where a published method is written in micrograms and the label is in milligrams, the peptide unit converter does the conversion.
Certificate of analysis
Every lot of Selank + Semax Dissolving Strips is released against a certificate of analysis: the batch-specific laboratory data for that lot, not a generic document for the compound. The lot number on the certificate matches the lot number printed on the label you receive — the vial label itself, where the product is vialled — so the record and the material it describes can always be reconciled.
Purity (raw materials): ≥99% by HPLC per peptide — the specification for this listing. The figure for the lot you receive is the one reported on that lot’s certificate.
No lot certificate is on display on this page at the moment. That is a publishing state and not a testing one: lots are released and documented as described above whether or not the document is posted here, and we will send what exists for the lot in stock, or for a lot already on your bench, by its number.
Certificates are available on request before you order as well as after, with no account and no charge. Request the certificate for this listing, read the testing and documentation policy in full, or see how to read a peptide COA.
Questions about Selank + Semax Dissolving Strips
How many strips are in a pack?
Twenty individual thin-film strips, each carrying a fixed pre-measured load of both Selank and Semax. Because the amount per strip is set at manufacture, study arms can be assembled by counting strips rather than weighing powder and calculating a dilution.
Are the peptides third-party tested, and is a COA available?
Yes. Both Selank and Semax raw materials are third-party analysed by HPLC to ≥99% purity with mass-spectrometry identity confirmation, and a lot-matched Certificate of Analysis is available for the batch. Match the pack lot to the COA before logging data.
Do the strips need reconstitution?
No. That is the point of the format. The film dissolves directly in aqueous media, so there is no weighing, solvent addition, mixing or filtration step and no bacteriostatic water to source. It also means the sealed pack needs no cold chain.
How should the strips be stored?
Sealed, cool and dry, protected from light and moisture. Humidity is the main enemy of a thin-film matrix — exposed strips become tacky and lose their handling properties. Remove one at a time with dry gloves or forceps and reseal the pack immediately.
Why are Selank and Semax combined?
Their research literatures are complementary — Semax is associated with BDNF, neurotrophin and attention work, Selank with GABAergic and stress-response work — while both are small, water-soluble Pro-Gly-Pro-stabilised heptapeptides that load into a film matrix well.
Related
