Animal gland in musk perfume???

my bf says that musk perfume is made of the glands of a musk animal is that true??Animal gland in musk perfume???
Lets say, there are some common elements. The same common elements that attract any animal to another animal(like deer scent, or muskrat lure). The olfactory has always been the strongest, most swaying sense.Animal gland in musk perfume???
That's very true.








Also, animals that are rendered (Broken down by cremation) like Horses, cows, sometimes goats, any large work animal, are put into perfume.
It is the truth, sadly.