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This breadth of activity is part of what makes it scientifically interesting and also part of what makes extrapolating from animal data to human outcomes genuinely difficult

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The skin appears smoother, tighter, brighter, and more even-toned with consistent use

The catalogue page is limited to research-use material, identity, strengths, and records

Some practitioners suggest methylcobalamin for certain conditions, though robust comparative trials are lacking

For example, fortified products would include the misnamed breakfast cereals or some plant-based beverages and soy yogurts that have B12 added