It was not logical that Mona Lisa does not have any eyebrows or eyelashes," Cotte told LiveScience. "I discovered one hair of the eyebrow." Cotte discovered the pigment just behind the right wrist matched up perfectly with that of the painted cover that drapes across Mona Lisa's knee.

Does Mona Lisa have an eyebrow?

The world's most famous painting originally included both brows and lashes, according to Parisian engineer Pascal Cotte, who says his 240-megapixel scans of the painting reveal traces of Mona Lisa's left brow, obliterated by long-ago restoration efforts. ...

What happened to Mona Lisa's eyebrows?

Using the 240-megapixel scans, Mr Cotte, 49, says he can see traces of a left eyebrow long obscured from the naked eye by the efforts of the restorers. His conclusion is that Mona Lisa once had both eyebrows and eyelashes, but that these have been gradually eroded to the point that they are no longer visible.