After applying Licefreee Spray, how long does it take to kill lice and the eggs?

After applying Licefreee Spray, how long does it take to kill lice and the eggs?

Licefreee Spray will kill lice within minutes but will take longer to kill the nits (eggs). This is why the directions say to allow your hair to air dry naturally. This makes sure the product is in contact with the nit long enough to kill it.