The strongest research area for Selank is anxiety and stress response. Studies have examined anxiolytic-like effects in preclinical and regional clinical settings.
A second area is neurotransmission. Selank has been studied in relation to GABA-related systems and gene-expression changes involving neurotransmitter pathways.
Neuroimmune research is also relevant because Selank is derived from tuftsin, a peptide associated with immune function. This makes Selank interesting for readers studying the connection between immune signaling and the nervous system.
Cognition is a secondary research area. Selank is often discussed in nootropic communities, but cognitive claims should be framed as emerging and context-dependent.