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A., Serraj, K., Vogel, T., & Kaltenbach, G

Neurotransmitters and Mood Regulation Vitamin B12 directly influences the synthesis of key neurotransmitters, including serotonin, dopamine, and GABA

Adult women require 2.4 mcg of vitamin B12 per day

Studies (5) do show that sublingual B12 supplements do raise serum B12 levels but my personal experience suggests that sublingual supplements are probably not absorbed very well under the tongue

You do not need to rush it

I had 5 booster shots of b12 and noticed after the 2nd shot I come out with acne on my forehead
