Although your vials might have dark amber glass instead of clear glass protecting them, it is still necessary to protect the nutrients contained inside by shielding B-vitamins from all light
Vitamin B12 is easy to find in animal products like meat, eggs, dairy, and fish
This being a pilot study, the sample size is quite low
Regular B12 supplementation can help prevent or treat deficiency symptoms such as fatigue, weakness, tingling or numbness in the extremities, memory issues, and anemia
B-5 is the anti-stress vitamin due to its vital role in the formation of various adrenal hormones & steroids, & contributes to the production of important neurotransmitters in the brain