It should be stored at controlled room temperature between 20C to 25C (68F to 77F), protected from light and moisture
It is composed of three amino acids (Alanine, Histidine, and Lysine) bound to copper, forming a bioactive complex that plays a key role in skin renewal, hair follicle stimulation, and tissue repair
Many nutrients have their action INSIDE the cell, which means that testing serum and blood levels just give us an indication of what may be available but that is assuming everything else is working properly: cellular activity, enzyme activity, receptor activity, etc
This occurs because B12 is essential for brain function and nerve health
Further to that, vitamin b12 can help to defend your body against pathogens to maintain a healthier immune system