As we get older, our bodies change in ways that can make it harder to absorb and use B12
In lab and clinical research, its been observed to activate fibroblasts (the cells that produce collagen), increase glycosaminoglycan synthesis (which helps skin retain water), modulate matrix metalloproteinases (MMPs, the enzymes that break down old tissue), and act as a copper cofactor in antioxidant pathways

Additional caution or monitoring may be appropriate in research settings involving: Active cancer- or tumor-related research models, where antioxidant-related pathways may influence cellular-response or treatment-response mechanisms Severe asthma or hypersensitivity-prone research models, as rare sensitivity-related observations have been reported in some experimental contexts Sulfur-sensitive research models, due to Glutathione containing a thiol (sulfur-containing) group Complex hepatic-function or detoxification-related investigations, where antioxidant modulation may influence oxidative-stress or liver-related biomarkers Research conditions, research amounts, protocol duration, administration frequency, and concurrent compounds may influence tolerability observations across experimental settings
In contrast, a negative Bliss score would suggest antagonism
Note that you can have B12 deficiency symptoms long before it progresses to anemia
You should consult a healthcare professional before administering this or other remedies at home