The systemic contribution from injection reduces the need for aggressive topical concentration
It contains a preservative that prevents bacterial growth, allowing multi-use from a single vial
[91] Since only bacteria and some archea possess the genes and enzymes necessary to synthesize vitamin B 12 , plant and algae sources all obtain the vitamin secondarily from symbiosis with various species of bacteria, [5] or in the case of fermented plant foods, from bacterial fermentation
However, cautionary words from the medical establishment seem to have done little to quench the public's appetite for these therapies, which have not undergone the large-scale trials needed to gain approval from the Food and Drug Administration
The scientific process demands more from us
For example, with our aesthetic treatments like BOTOX, clients often see a visible reduction in wrinkles and fine lines