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What You'll Need Gather everything before you start so the vial isn't left open longer than necessary
However, if you are sensitive to methylated nutrients or already reacting to supplements, starting with single-ingredient B12 may be safer before introducing a full B-complex

Gastroenterology 113 , 865874 (1997)

Tip : Rotate injection sites daily to avoid irritation

The current generation of troches and drops works well for small peptides, but emerging technologies promise to extend sublingual delivery to compounds that are currently injection-only