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The NIH Office of Dietary Supplements, citing Institute of Medicine recommendations, advises that it is advisable for those older than 50 years to meet their RDA mainly by consuming foods fortified with vitamin B12 or a supplement containing vitamin B12. This recommendation reflects the fact that 10 to 30% of older adults lose the ability to efficiently absorb naturally occurring B12 from food

If the vial is exposed, keeping it in a dark area of the refrigerator is a simple precaution

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Skin Repair and Extracellular Matrix Research Copper serves as an essential cofactor for numerous enzymes involved in collagen synthesis, antioxidant defense, and connective tissue maintenance