Nope, it's not sweat or tears (but good guess). Instead, the secret to Offred's glow is the Elizabeth Arden Online-Only Eight Hour Cream Skin Protectant (£27). "I apply that all over Elisabeth's face, because a lot of times, the lighting is really dark or dimly lit, so it just gives her face a nice sheen when the light hits it," he said. "That way she has more dimension to her face and it's not so flat looking."