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We conducted a trust game experiment to investigate whether women are trusted more when they wear makeup than when they do not. Facial attractiveness, which was manipulated through the application of makeup by a professional makeup artist, was measured before and after makeovers. Trustors were shown a photograph of their female counterparts before they made decisions about money transfers to trustees. The results showed that wearing makeup increased perceived attractiveness, which in turn led trustors to make larger transfers to female trustees during the trust game. Additionally, we discovered a pure makeup premium, which was mediated by gender. Specifically, female trustees with makeup received larger transfers than female trustees without makeup when the trustors were men, even after controlling for female trustees’ levels of attractiveness.
We tested the following five hypotheses:
Hypothesis 1: Wearing makeup increases perceived attractiveness.
Hypothesis 2: Wearing makeup increases perceived trustworthiness.
Hypothesis 3: Trustees with makeup receive larger transfers in the trust game than trustees without makeup.
Hypothesis 4: Male trustors transfer more money to women with makeup than female trustors.
Hypothesis 5: The makeup effect is larger in magnitude for less attractive female trustees.

本研究开展信任博弈（trust game）实验，旨在探究女性化妆时是否比不化妆时更易获得他人信任。本研究通过专业化妆师打造妆容操控面部吸引力（facial attractiveness）水平，并在化妆造型前后分别对其进行测量。在做出向受托者（trustees）转款的决策前，信任者（trustors）会先观看配对的女性受托者的照片。实验结果显示，化妆可提升被感知到的面部吸引力，进而使信任者在信任博弈中向女性受托者转款的金额更高。此外，本研究还发现了以性别为中介变量的纯妆容溢价效应：具体而言，当信任者为男性时，即便控制了女性受托者的面部吸引力水平，化妆的女性受托者获得的转款金额仍高于未化妆的女性受托者。
本研究验证了以下五项假设：
假设1：化妆可提升被感知到的面部吸引力。
假设2：化妆可提升被感知到的可信性。
假设3：在信任博弈中，化妆的受托者获得的转款金额高于未化妆的受托者。
假设4：男性信任者向化妆女性受托者的转款金额高于女性信任者。
假设5：对于面部吸引力较低的女性受托者，妆容带来的效应强度更大。