"The by-product of that is that it became ridiculously expensive to actually produce that," continued Christian. "We didn't expect it to be as well-received as it has been, which goes to show that if you produce something so well, the world will respond well to it."
Christian said the two ingredients in particular make this perfume so expensive. Natural aged sandalwood from , for example, which is so prized it is regulated by the Indian government, is an ingredient in No. 1.
Tahitian vanilla is another, which Christian explained goes through a labor-intensive process to procure.
"The vanilla pods ferment, and then tiny crystals form on the outside of the pod, and we actually reap the perfume of the vanilla, from those crystals - not actually from the pods," said Christian.
Though Christian may be the man behind the world's most lavish scent, one of his favorite scents doesn't hail from an exotic locale or rare flower, though you might be hard-pressed to find such a smell today.