Official references also describe it as a container designed for repeated entries, which is the key detail behind storage rules and opened-vial dating
On product pages, the correct term is Bacteriostatic Water, although some customers also search for it using other names
Because your body uses and excretes B12 rather than storing unlimited amounts, consistent timing helps keep your energy and focus steady instead of peaking and crashing. Many people find that taking B12 late in the day can make them feel more alert right when they are trying to wind down, which may interfere with sleep
Sport status: Prohibited at all times under the World Anti-Doping Agency's S0 category
Vitamin B12 injections are also commonly used to help relieve fatigue
The largest dataset based on whole-body counting is provided by Heinrich (Heinrich, 1967), who studied doses up to 100,000 g