Synthesis and regulation of neurotransmitters and hormones The synthesis of diverse hormones and neurotransmitters, including all monoamine neurotransmitters, are reliant on the methylation cycle
Serious systemic reactions: rare but possible Reports exist of anaphylaxis and severe allergic responses after vitamin B12 injections
The detailed results of that late-stage study were not published as a full peer-reviewed clinical paper, which limits independent appraisal
Find out in the Biotin (B-7) section of our B Vitamin Supplements Review, which also discusses the evidence for biotin for treating brittle nails and hair loss
This step is performed after mixing of ingredients
B vitamins are involved in a variety of physiologic processes, including supporting normal nervous system function, red blood cell production, and cellular health