The makeup increases people’s perceptions of a woman’s likability, her competence and (provided she does not overdo it) her trustworthiness. On the flip side, there is some evidence that women feel more confident when wearing makeup.
The women were photographed without makeup and in three other looks that researchers called “natural,” “professional,” and “glamorous.” Regardless of time spent looking at a picture, participants believed that the women with more makeup looked more competent than barefaced women. Interestingly, the “glamorous” look did suffer a serious drawback – a lowering of trust of the viewer. The study can be found here: http://www.plosone.org/article/info:doi%2F10.1371%2Fjournal.pone.0025656.
While employees may want to consider the recent beauty studies or pulchrinomics, when approaching work, beauty is only skin deep – none of these studies address the long-term effects of wearing makeup on perceptions or, more importantly, the quality of work done by these women, which does not depend on makeup or beauty.