For most people, expect about one to two weeks of noticeable effects, with the exact timing shaped by your levels, metabolism, diet, absorption, and age
The inclusion of benzyl alcohol inhibits microbial growth between successive punctures, qualifying this product as a multi-dose diluent suitable for repeated access under aseptic conditions
It helps to remove the damaged or dead skin cells that cover the underlying brighter skin
However, observational studies suggest that whilst acute toxicity remains exceptionally rare, sustained very high levels of B12particularly from supplements or injectionsmay be associated with certain health concerns, though these are correlations rather than proven causal relationships
doi:10.1111/j.1365-313X.2006.02938.x