Yíng / yǎng / biāo / qiān / shàng / xiě / zhe / fàn / suān / yě / jiù / shì / wéi / shēng / sù / B / wǔ

营养标签上写着泛酸，也就是维生素B5。

The nutrition label says pantothenic acid, which is vitamin B5.