Many of the older perfumes used real animal gland musk as a base note for their fragrance. Since animal rights activists pretty much stopped that, extremely toxic phthalates are used in their place.
I am so sickened by today's colognes and other scented products, I can barely leave the house without getting sick. Nowhere I visit - like my dad's house, has scented product. I really know who wants me around by who has an unscented policy.
Back in the day, (1970) I had a sweetheart who used Aqua Velva and it didn't bother me a bit. The chemicals have changed.