Selank is a short, synthetic analogue of tuftsin. Selank was developed by scientists in Russia and has shown to have profound anti-anxiety properties in human clinical trials. Selank also boosts memory and learning, and has been shown to have beneficial effects on pain perception. Selank is a peptide that is thought to work by modulating the levels of serotonin and other neurotransmitters in the brain. Selank is an exciting new compound with great potential for treating anxiety and improving cognitive function.