A high-potency combination of vitamin B2 and B3, with the niacin supplied as inositol hexanicotinate.

The niacin form is the point of difference. Inositol hexanicotinate behaves differently from plain nicotinic acid, and pairing it with riboflavin at this strength is a specific, considered combination rather than a general B vitamin.

Tablets, hypoallergenic, from Allergy Research Group.

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