Promotes Healthy Skin, Hair, and Nails B12 supports cell turnover, which contributes to healthier skin, stronger hair, and nails, reducing dryness, brittleness, and skin inflammation
Keep consecutive injections at least one inch apart from any previous site, and avoid any area that is bruised, scarred, inflamed, or still tender from a previous dose
Dangers of Vitamin B12 deficiency In a study published in The New England Journal of Medicine, a 62-year-old man developed numbness and a "pins and needles" sensation in his hands, had trouble walking, experienced severe joint pain, began turning yellow, and develop progressive shortness of breath
(GeneReviews/NCBI, updated descriptions)
Comorbidity in the elderly with diabetes: Identification of areas of potential treatment conflicts
See methodology