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That said, large-scale human safety trials have not been conducted, and anyone with existing health conditions or who takes medications should consult a healthcare provider before adding any new supplement - and particularly a research-stage compound like this one
This can make it difficult to draw an accurate dose into the syringe and may slightly reduce the medications effectiveness by damaging the proteins
Some of it is not safe
2012;73(7):e889e890
Laboratory Analysis: The blood sample is then sent to a lab to analyse the concentration of vitamin B12 in your serum
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