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labs looks like this: Normal range: 200 to 900 pg/mL (some labs use 160 to 950 pg/mL) Optimal range: 400 to 600 pg/mL Elevated: above 900 to 1,000 pg/mL (hypercobalaminemia) These ranges come from sources including UCSF Health and WebMD, though your labs specific cutoffs may differ
B12 is a water-soluble vitamin, meaning your body will naturally excrete any excess
If you feel any pressure, stop, and allow the syringe to adjust
The benzyl alcohol is your line of defense, ensuring the solution remains sterile and safe for its intended lifespan
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