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Research studies have examined various aspects of this synthetic peptide
The most common side effect is temporary mild irritation at the injection site
Long-term deficiency can lead to serious heart and neurological problems
How Do These B12 Injections Work
This is why we built methylcobalamin into Building Blocks so a foundational nutrient like B12 isn't the bottleneck when you're investing in protocols designed to optimize how you feel, train, and perform
Methylcobalamin is found in animal-based foods and is therefore obviously naturally occurring
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