Selank is primarily used for its anxiolytic and nootropic effects, helping to reduce anxiety and improve cognitive performance. It is commonly applied in the management of stress-related conditions and mild to moderate anxiety disorders without the sedative effects typical of traditional anxiolytics. Selank enhances mental clarity, focus, and memory retention, making it of interest in cognitive enhancement and mental performance optimization. It also exhibits mild antidepressant-like activity and supports emotional stability. Due to its ability to modulate the immune system, it has been explored for use in improving resistance to infections, particularly in individuals with weakened immune responses. Selank is often administered as a nasal spray for rapid absorption and quick onset of action, making it suitable for both acute and chronic use in neuropsychiatric and neurodegenerative conditions.