SelankNasalSpray

Selank nasal spray in Canada is supplied by Horizon Peptides as a pre-prepared 20 mg research spray bottle, available singly or in 3-bottle and 5-bottle packs. Selank is a synthetic heptapeptide studied in laboratory models of neuropeptide and monoamine signalling.

Selank is a seven-residue synthetic peptide, Thr-Lys-Pro-Arg-Pro-Gly-Pro, built by attaching a short tripeptide tail to the sequence of tuftsin, an immune-active fragment. That added tail is what stabilises the molecule, and it distinguishes Selank from the natural fragment it derives from.

Research attention centres on neuropeptide signalling and monoamine regulation in animal and cell-culture models. It is frequently examined alongside Semax, another Russian-developed short neuropeptide, since the two are often studied under comparable experimental conditions.

The pairing of an immune-active parent fragment with a stabilising extension makes Selank a useful case study in how small structural additions change a peptide’s behaviour, which is a recurring question in short-peptide research.