A vitamin B12 booster, or better still a course of Vitamin B12 can help restore energy, sharpen focus, and support overall wellbeing. Many people choose B12 when they feel run down, stressed, or lacking vitality, but it can be especially beneficial if you follow a vegetarian or vegan lifestyle, have a busy or high-pressure routine, or are over 50 when natural absorption starts to decline. B12 also supports healthy red blood cell production, brain function, and immunity — making it an ideal boost if you’re often tired, low in mood, or simply want to maintain optimum wellness.