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You can often get a B12 injection without needing to make an appointment ahead of time

Noriega et al., 2017

doi: 10.1016/j.pharmthera.2005.02.004

But heres a truth our team has seen play out time and time again: the most pristine peptide in the world is rendered completely useless, or worse, misleading, if its prepared incorrectly
doi: 10.1371/journal.pone.0068444
