NAD Pack

NAD+ and GHK-Cu are studied in different areas and so rarely appear together: NAD+ is a coenzyme central to the cell's energy metabolism and to its repair and ageing pathways —sirtuins, PARPs—, while GHK-Cu is a copper tripeptide that the literature places in the extracellular matrix, collagen synthesis and fibroblast signalling.

They come in separate vials and each is reconstituted on its own and at its own concentration: the pack does not mix them or propose any protocol. It includes the bacteriostatic water, as 10 ml is enough to reconstitute both.

In a blend the peptides come mixed in a single vial at a fixed ratio: you reconstitute once and what you get is the mixture, with no way to change the proportion between compounds.

In a bundle each compound arrives in its own vial. You reconstitute them separately, at whatever concentration the experimental design calls for, and you can use one without the other. That is why a bundle costs more than the equivalent blend: more vials and more material.