The poop comes in powdered form, which is UV sterilized, mixed with water then brushed on the skin.
The facial is gaining popularity in New York City, and women are willing to at least give it a try.
"This is a first for me, I've had the microdermabrasions and the brightenings but this is the first time I've ever tried poop," said Mindy Lubel, a customer.
The spa owner says nightingale droppings have a natural enzyme that breaks down dead skin cells and exfoliates. She claims geishas in Japan used it to remove makeup, brighten and heal their skin.