Follow for more info on how to optimize your health. Semax and Dihexa are not interchangeable and treating them like they are is where most people get confused. Semax is about Cognitive Signalling Research Set (Semax Selank) (RUO) Tide Labs Tide Labs Semax Selank Injectable Team Wellcore A lot of people ask how peptides can improve focus, calm, relationships, and performance without stimulants. Two of the most misunderstood peptides are Semax and Selank. Semax (pronounced SEE max) Semax is Semax Nasal Spray Polar Peptides