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Vitamin B12 is important for maintaining healthy hair, skin, and nails
In UK, NHS tends to use hydroxycobalamin and I think doctors in US often use cyanocobalamin
The compound did not affect fasting glucose, insulin, HbA1c, IGF-1, cortisol, thyroid hormones, or liver enzymes (Thompson et al., 2004)
It may difficult to extract 100% of the solution from the vial using the syringe
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