Lyophilization — freeze-drying — removes water from a frozen sample under vacuum, leaving a dry, typically powdery or cake-like solid. It is used widely for peptides and other biologics because many of these molecules degrade meaningfully faster in solution than in a dry, stable state; lyophilization is one of the standard ways the research-materials and pharmaceutical industries extend a compound’s usable shelf life prior to use.
A lyophilized vial is generally reconstituted — brought back into solution — immediately before use in a laboratory setting, following whatever protocol applies to that specific study. NuePharma does not publish generic reconstitution instructions here, because the correct approach depends on the specific research protocol in use, not on a one-size-fits-all recipe.