No, Embroidered hairs only look like real hairs. It's actually a pigment implanted into the scratched surface of the skin ( between the dermis and epidermis) using a specialised hand tool . They mimic brow hair and only when you look closely you discover they are not real hairs at all, but tiny slits in the skin, full of pigment that makes them look like real hairs. Take a look.
Some befores and afters