I think you're on to something here. I have a big problem with Ormonde Jayne fragrances, all of them. Somehow they start out beautifully, then 10 minutes later, they amplify, and amplify, until I'm ready for skin grafts! (showers don't help, the stuff clings)
I had the same problem with a sample of Lancome's Magnifique.
All of these, I'm told, contain large amounts of Iso E Super in the base. Something about this molecule causes frags to go nuclear, at least to some people's noses. Terre d'Hermes contains it at a tolerable level, I don't mind that one. I think he used a lot in Kelley Caleche, which I can wear on occasion, but it's so strong!
Perhaps it's good IFRA is trying to regulate Iso E Super....