Thanks to these cool-toned contour products, strong cheekbones and striking jawlines have never been more effortless.

Let's be real - contouring can feel like one of those makeup techniques that looks effortless on beauty gurus but somehow ...

Fig. 1. Molecular structure of the dye betaine 30 (dark contours) in the solvent dimethyl-sulfoxide (DMSO). The disordered dye molecules possess a permanent electric dipole moment along their ...