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No change at a tolerated dose can indicate limited response, but it does not support faster-than-label escalation
With an impaired immune system, the liver will become depleted from B12 reserves very rapidly
However, to maintain optimal B12 levels and sustained benefits, regular injections are often necessary, typically every few weeks or months
This article explores whether excessive B12 intake can cause hair loss, the science behind its effects on follicles, and how to maintain optimal levels for healthy hair growth
For instance, a study by Grace et al., on lambs receiving a single 2 mg subcutaneous B12 injection demonstrated significant increases in serum and liver B12 concentrations for up to 24 days compared to untreated animals (2)
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