Human pheromones - An introduction
 

Potentially, human pheromones could be made up of many different types of compounds. We know about fatty acid chains and hormone derived compounds (populating the list below), but proteins and small amino acid chains also have the potential to have some kind of pheromonal action, although these are more likely to be transmitted by touch as they are not very volatile (do not evaporate easily).

Pheromone products have so far only dealt with hormone derived pheromones and one specific group of fatty acid pheromones. Very few of them are only found in either men or women; in most cases most of them are present but in different ratios.

There has been some controversy about pheromone products containing pig pheromones, but this is a ridiculous claim. Some of the pheromones found on human skin are also found on pigs, just in the same way that some of our hormones and metabolic processes are the same.