Musk is derived from the male musk deer
So many popular perfumes contain musk, but the origins of this scent will shock you. Musk is a reddish-brown secretion from the "musk pod" of the male musk deer. It is such a popular ingredient that it is even mentioned in Kabir’s poems. However, since its popularity encouraged the hunting of this endangered deer, its scent is now replicated synthetically.