This is one of the most common questions we hear—and the answer is reassuring. Vitamin B12 is a water-soluble vitamin, which means your body naturally absorbs what it needs and excretes the rest in your urine. So even if your blood levels are “high” after a shot or IV, that doesn’t mean it’s dangerous.

There’s no known toxicity from B12 supplementation in healthy individuals.

Unlike fat-soluble vitamins (like A or D), B12 doesn’t build up in your tissues to harmful levels.

Safe, Effective, and Backed by Science

At Flow Wellness, we use methylcobalamin for IV injections, the active form of B12 your body prefers. It’s safe, well-tolerated, and ideal for those looking to feel more energized, focused, and balanced—especially during busy or stressful seasons.

We offer:

• B12 Injections: Quick, easy, and walk-in friendly. Also included in our Vita Shot- our most powerful injection.

• Signature IV Infusions: Including B12 with other energy and immunity boosters

• Supplemental support for patients on weight loss or hormone optimization programs. Please note combination forms of Vitamin B12 are cyanocobalamin – still Vitamin B12 – but is stable to mix with other medications.

What Does Vitamin B12 Do?

Vitamin B12 is a powerhouse nutrient that plays a key role in:

• Energy production at the cellular level

• Nervous system support (think focus, mood, and nerve health)

• Red blood cell formation to prevent anemia

• DNA synthesis and cellular repair

• Brain and cognitive health

Despite its importance, many people aren’t getting enough B12—especially those following plant-based diets, older adults, individuals with digestive disorders (like IBS or Crohn’s), or anyone on certain medications like metformin or acid blockers. B12 sometimes is not well absorbed in the GI tract, which is why we recommend injections and infusions.

Signs You Might Be Low in B12

• Fatigue or brain fog

• Numbness or tingling in hands and feet

• Mood swings or low mood

• Pale skin or shortness of breath

• Slow metabolism or weight loss resistance

If any of this sound familiar, it’s worth getting your levels checked—or considering a safe trial of B12 supplementation.

Why Supplement B12?

The truth is, many people don’t absorb B12 efficiently from food or oral supplements, especially as they age. That’s why we offer B12 injections and high-quality IV infusions that bypass the digestive system and deliver B12 directly to your cells—fast and effectively.

Supplementing can:

• Boost energy and fight fatigue

• Enhance focus and clarity

• Support mood and reduce stress

• Improve metabolism and help with weight management

• Strengthen immunity

Ready to Feel Better?

If you’re tired of being tired, B12 might be the missing piece. Book your next IV or B12 shot with Flow Wellness—or ask your provider how you can safely incorporate it into your health routine. Because when your body gets what it needs, everything works better.

Learn more:

What is in a B-Complex IV?

The Vitashot: Support Energy, Mood, & Metabolism

Supplements