How do selank and semax work?

Semax is a piece of the hormone ACTH. It is thought to work by raising BDNF, a protein that helps brain cells grow and survive, which may protect nerve cells and help thinking. Selank is a lab-made copy of tuftsin, a small immune peptide. It is studied for easing anxiety, and for mild effects on thinking, through a different route tied to stress hormones. Both are given as a nose spray. The body clears them in minutes, so they would not survive digestion or last long in the body another way.

Educational use only. This database summarizes published research and is not medical advice. Where a dose appears it is a record of what a trial or clinic ran, or what people describe doing, with its source attached. Nothing here is a recommendation for personal use.

Part of cognitive and mood peptides. Selank, semax, cerebrolysin, and other nootropic and CNS peptides.