Tacuinum sanitatis (14th c., Biblioteca Casanatense)
One who has very ugly nails should smear them with liquid from the little bladder of the bumblebee and tie it with a band. He should do this until they become beautiful.
Hildegard of Bingen, Physica (trans. Priscilla Throop)
Better make sure your beautician is also trained in entomology.