b12 injections versus oral supplements Vitamin vs. Supplements: Which is Right for You? B12 Injection vs. Oral Supplements:

Pinching a fold of skin and inserting the needle at a 45-degree angle ensures proper placement

However, many other places have simplified the process

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Cyanocobalamin (Vitamin B12)..............5000 mcg Benzyl Alcohol (preservative).................1.0% v/v Sodium Chloride.................................0.22% w/v Ammonium Sulfate...............................0.1% w/v Citric Acid..........................................0.01% w/v Sodium Citrate..................................0.008% w/v Inject subcutaneously or intramuscularly

The NHS recommends an intake of approximately 1.5g per day of B12 for adults via diet or supplementation