Research suggests that male pheromones, present in underarm sweat, can indeed have a positive impact on women's mood and hormonal balance. Pheromones are chemical signals that can influence behavior, mood, and physiological responses. In this case, the pheromones present in male sweat can: Boost mood: By stimulating the release of neurotransmitters like serotonin and dopamine. Regulate hormones: By influencing the balance of estrogen and other hormones. While the science is still evolving, studies have shown that exposure to male pheromones can have a positive effect on women's emotional state and hormonal balance.