Pregnenolone is a molecule classified as a pheromone because it can help with mood ("Mood Enhancement") by affecting both users. And those around

Improved Mood and Quality of Life, Preservation of Bone Mineral Density, Relief from Vulvovaginal Atrophy and Dyspareunia

Male-Pheromone (Androstenone)

Female-Pheromone (Copulins)

Female-Pheromone (Estratetraenol)