B12 is often added to support normal energy metabolism
The effects of inflammation on neurotransmitter production (reduced serotonin production, increased quinolinic acid production) also create a tendency towards mood and behavioural changes, often diagnosed as depression and anxiety
Individuals receiving B12 supplementation may occasionally experience injection site reactions or, rarely, hypersensitivity
References "Prospective, Preclinical Comparison of the Performance Between Radiofrequency Microneedling and Microneedling Alone," Journal of Cosmetic Dermatology , September 6, 2019
But if your body struggles to absorb the nutrient, you may want to consider vitamin B12 injections since they bypass digestion completely (6)
Keep out of reach of children and unauthorized individuals