First, we measured the concentrations of hydroperoxides and aldehydes in 2 wt.% WPI-stabilized polydisperse emulsions over ten days with 0, 1 or 50 µM BODIPY 665/676 in the oil phase and using 1 H-NMR. These polydisperse emulsions were prepared with separate colloid mill preparations as the different BODIPY 665/676 levels needed to be added to the oil phase before emulsification. The kinetic curves in Figure & b show that the emulsion prepared with BODIPY 665/676 oxidized less rapidly than those that did not contain BODIPY 665/676, except for after six days, when the values started to reach a plateau (Figures &). In an independent experiment, however, emulsions with 1 µM BODIPY showed slightly faster oxidation than the emulsions without (0 µM) BODIPY (Figure ).