Pay in 4 interest-free payments of $5.54 Learn more
Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
Some people get plenty through diet but still struggle to absorb it properly
B12 deficiency can cause fatigue and slow metabolism
Their true frequency and cause are unknown
Regular lab testing helps ensure youre supplementing only when needed and at the right dose
Another important type is methylcobalamin , which is an active form of the vitamin
Identity, purity, strength, and sterility may vary
US$ 20.66
US$ 21.10
US$ 26.52
