My brother the other day was studying about Propylparaben and when i was setting my hair he was saying that Propylparaben had such an importance in my make up and cosmetic products but then i did not pay much attention to what he said but then afterwards i was wondering that was Propylparaben that important to cosmetics.now i want to know whether Propylparaben is an important agent and that what is Propylparaben made up of and that in what way is Propylparaben added to soaps lotions and other cosmetic products?so that the next time he tells me the name of Propylparaben i can tell him confidently .its good to increase your knowledge base.