There is some data showing that human pheromones can have subtle effects. Two women living together for an extended period of time may gradually have menstrual cycles that synchronize. Clear evidence there that body chemistry can and does affect the body chemistry of another. But humans don't respond as instinctively due to the development of a "higher" brain. Pigs and dogs may start salivating when exposed to pheromones, but human behavior is much more complex and responds less predictably.
I read about that one news station way back when which used a pheromone in a dental office. They sprayed it on one chair and found more women chose that chair throughout the day. I'm not sure if they had the proper controls, such as having the chairs beside each other and facing in the same direction and having the same selection of reading material in front of each.
The point is that with humans, pheromones are only a weak and very minor stimuli in the whole scheme of things. It may get you noticed by the opposite sex at best, but they still have to respond to other cues which have way more impact on behavior (the way you look, speak, etc). A fugly ass dude isn't gonna become sex magnet using artificial pheromones. The pheromone industry, just like any other that is related to beauty, makes its millions on the desperation and insecurity of the lonely.