b12 injection 1 mg Cyanocobalamin 1,000 mcg / mL mL Vitamin B12 Dosages: Your GoodRx

Starting at 1.0 mg significantly increases the risk of nausea, vomiting, and other gastrointestinal side effects

and when delivered as an intramuscular injection, bypasses the digestive system for significantly faster and more complete absorption than oral supplements

Purified water (Water) 755.199 mg/mL PEG-40 hydrogenated castor oil (Castor oil) 157.667 mg/mL Glycerol (Glycerin) 106.667 mg/mL Mentha x piperita L. aerial parts oil ess. (Peppermint oil) 167 g/mL Citric acid - anhydrous (Citric acid) 1.667 mg/mL Potassium sorbate 1.067 mg/mL Steviol glycosides (Stevia) 500 g/mL D-alpha-tocopherol (Vitamin E) 4.6977 mg/mL Helianthus annuus seed oil fixed (Sunflower oil) 2.3023 mg/mL

You may feel a quick pinch during the injection and mild soreness at the site afterward, but it usually fades quickly