As stated in the product description, vitamin C (ascorbic acid) is present and functions as an antioxidant vitamin. However, the description clearly notes that this bar is chosen primarily for its protein content and convenient snack format, rather than as a vitamin source.
This means the vitamin C content is not the main nutritional focus. It likely contributes a small amount as part of the overall formulation. If you are looking to significantly increase your vitamin C intake, relying on dedicated dietary sources like fruits, vegetables, or specific supplements would be more effective.
The bar's primary value lies in providing a portable, high-protein option with a specific lemon-cake taste profile. The vitamin C is a secondary component, consistent with its role as an antioxidant that can be part of a varied diet.