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Consistent absorption and systemic availability remain uncertain, and human pharmacokinetic data are lacking
Some researchers report reliable potency up to 45 days, but 28 days is the conservative window supported by stability data
Some researchers skip the swab after the first few draws, figuring the bacteriostatic water preservative will handle any contamination
Hydroxocobalamin is another highly bioavailable natural form frequently administered via injection due to its excellent retention in the bloodstream
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