This study investigates the impact of female sex hormones (i.e., luteinizing hormone (LH), estrogen, and progesterone) on women’s consumption behaviors on fashion products. Female sex hormones reach peak level when women are near ovulation, and this research examines how these hormones, when at peak level, influence women’s attitudes and purchase intention toward sexy and revealing fashion products. The research is based on two theoretical frameworks: ovulatory shift hypothesis (OSH) and theory of reasoned action (TRA). Moreover, moderating effects of sexy fashion consciousness and self-control are investigated. A within-subject survey design was used to examine the proposed phenomenon. Vietnamese women were recruited for this specific study.