Pantothenic acid (vitamin B5) is critical for human health. As a component of a ubiquitous cofactor called coenzyme A, it plays a central role in lipid, amino acid and glucose metabolism, and mitochondrial energy production, as well as in the synthesis of hemoglobin, neurotransmitters, cholesterol and steroid hormones, and other proteins and lipids.^1-4 Furthermore, the importance of coenzyme A regulating cell signaling and gene expression has recently been recognized.^2,5

Pantothenic acid is only mildly acidic, but its calcium salt has a more neutral pH and longer storage stability.⁶