white neck powder (used by geisha)
A traditional cosmetic powder applied to the neck, especially by geisha and maiko, to create a visible white contrast with the unpainted skin at the nape.
芸妓さんは襟白粉をていねいに塗っていた。
The geisha carefully applied white neck powder.
Erioshiroi is used to accentuate the beauty of the nape of the neck.