I believe they do but not how you might think. I wear my Dona roll-on Pheromone Perfume Gel every day to work and since I have, my male co-workers seem more agreeable to my ideas and suggestions. Matter of fact some of the get downright close and just a little friendly, not in an uncomfortable way but less conflictive. Lots of times they just stop by just to say hi, something that never happened before I wore it.