Figure 1: Plasma ubiquinol and ubiquinone at steady states or ubiquinol intake. The concentrations of plasma ubiquinol (reduced form of coenzyme Q10, blue) or ubiquinone (oxidized form of coenzyme Q10, pink) was measured over 11 weeks in an adult female marmoset at the dose of ubiquinol specified in the figure. The result suggested the correlation between the logarithmic intake and plasma concentrations in both forms of coenzyme Q10 (see text).