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B12 deficiency may occur due to poor diet, vegetarian/vegan lifestyle, malabsorption, aging, digestive disorders, or medications like metformin and PPIs

Batch contamination or degraded product is the most common cause of null results in replication studies

Levels decrease with age, leading to thinner skin, loss of elasticity, slower healing, and more visible lines

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Storage Solvent & Solubility In Vitro : H 2 O : 20 mg/mL ( 46.90 mM