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Anyone that knows they are low in a certain vitamin from a blood test or has symptoms related to the vitamin, ie tired, foggy would usually be low in B12
Adverse Reactions & Side Effects Common Mild injection-site discomfort Redness or swelling at injection site Less Common Nausea Headache Rare hypersensitivity reactions Adverse effects are generally mild and transient
The company has passed GMP acceptance and ISO9000 system certification, and the company strictly produces and controls the quality of the entire production process from raw materials to finished product packaging
While this sounds painful, it actually is relatively painless for most people
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