This is not a failure of formulation quality or dosage
Both are classified as research compounds ("for research use only" in the US and EU), and their legal status for possession, sale, and use varies by jurisdiction
J., Bode, B., Cernich, J
Append modifier 77 to the second providers claim and document the clinical basis for the repeat
Which one to choose Pick the B12 IM injection when: You only want B12, not hydration or other vitamins You want the fastest, lowest-cost visit You are on a regular B12 cadence (weekly, biweekly, monthly) and want it to be a quick stop Your physician has flagged low or low-normal B12 on bloodwork and recommended supplementation Pick the IV with B12 added when: You also want fluids (post-travel, post-event, training recovery) You want a broader vitamin and mineral panel in the same session You are coming in for a Myers Cocktail or hydration drip already, and adding B12 is a small marginal cost You want to combine B12 with glutathione or a NAD+ session What clients actually do at Dripology Most regulars use both at different times
For clinical questions, your assigned provider is the right contact