This is harvestable from an object, A Bar of Hairy Soap, dropped by one of the Devolved Squatters that you put in the drowned room earlier when you were doing the quest, Devolved Recovery, for Antharo Quarum.
Get to it quick before it dissolves to get A Bar of Hair Covered Soap. You need 9 of them to give to Omi for Circuit Diagrams, the rare binder for a collectible book.
The soap is Bound to Account and max stack is 9.