Pay in 4 interest-free payments of $5.45 Learn more
Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
A standard serum B12 test can be misleading because it measures the total amount of B12 floating around in your blood, not what's actually available for your cells to use
Some people experience digestive upset from high-dose B12 supplements
Who Should Avoid It Not for those with personal/family history of thyroid cancer (MTC), MEN2 syndrome, active pancreatitis, or severe gastroparesis
Great product and customer service Gave me a little bit of energy
An intramuscular injection can last up to a month and is absorbed slowly into the blood over a longer period
US$ 29.93
US$ 22.73
US$ 22.67
US$ 28.97
US$ 25.41
US$ 23.36
.png?sfvrsn=f94c669f_5)