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Certain injectable nutrients (such as cyanocobalamin/methylcobalamin for vitamin B12 deficiency) are FDA-approved for specific indications
Do not self-inject
For beginners, start with the getting started with peptides guide before building a stack
If blood appears, you may have hit a blood vessel, and it's best to withdraw and try another injection site
14 About 10% of the injected dose (100 of 1000 g) is retained
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