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Description
Ascorbic Acid Vitamin C addition
BMC Pharmacol Toxicol 17(1):44 Koppad AK et al (2017) Evaluation of serum vitamin B12 levels in type 2 diabetes patients on metformin therapy attending a tertiary care hospital
Rather than stimulating the brain, it supports the systems that allow the brain to function more efficiently

Why This Combination Stands Out
But for many consumers, that requirement remains a barrier