Buy 98% Purity Anxiolytic Peptide Selank (Selanc) (5mg / vial) Online   Selank Description Selank is a synthetic derivative of the human body’s naturally produced tetrapeptide Tuftsin. It is a hexapeptide whith a wide range of uses. As a nootropic, Selank can help enhance mental sharpness, reduce mental fatigue, improve the ability to focus, improve cognitive functioning while in a …