Vitamin B12 is water soluble, meaning as long as you are taking "prescription-grade" drops, you do not have to worry that the levels are going to be diluted as they pass through your bloodstream
Factors such as initial B12 levels, underlying medical conditions, certain medications, advanced age, and injection frequency can affect the absorption and utilization of B12, possibly shortening the duration of action
Supports oxygenation of heart muscle tissue
Lyophilized (powder): Store at 20 C (4 F) in a cool, dry place protected from light
Int J Radiat Oncol Biol Phys 63:12521261 Chen YJ, Shiao MS, Hsu ML, Tsai TH, Wang SY (2001) Effect of caffeic acid phenethyl ester, an antioxidant from propolis, on inducing apoptosis in human leukemic HL-60 cells
Even moderate intake (23 drinks weekly) can suppress hepatic glutathione by 1520% for 4872 hours post-consumption