Riboflavin is a B vitamin. It can be found in certain foods such as milk, meat, eggs, nuts, enriched flour, and green vegetables. Riboflavin is frequently used in combination with other B vitamins in vitamin B complex products.
embodied - possessing or existing in bodily form; what seemed corporal melted as breath into the wind- Shakespeare; an incarnate spirit; `corporate' is an archaic term. incarnate, bodied, corporal, corporate.
essence. n. 1. the characteristic or intrinsic feature of a thing, which determines its identity; fundamental nature. 2. the most distinctive element of a thing: the essence of a problem. 3. a perfect or complete form of something, esp a person who typifies an abstract quality: he was the essence of gentility. 4. (Philosophy) philosophy. a. the unchanging and unchangeable nature of something which is necessary to its being the thing it is; its necessary properties. Compare accident 4.