Proverb. First found in the work by Sir Thomas Overbury's, 1613:
"All the carnall beauty of my wife, Is but skin deep."
This project is part of a workshop that was held at The Lebanese Academy Of Fine Arts. Each group of students started by picking a random word out of a book. After that, they had to use that noun to come up with a concept that would help them construct a typography installation that would fade away naturally with time. 
"Detergent" was the name that stuck with my group. As a starting point we tried cleaning random places around the university so that we could try and write the word using detergents. But sadly the walls weren't dirty enough. (Ironic right?) We then chose the other option: To dirty the place up! We did several experiments and discovered that vinegar left a pretty visually intriguing organic trace. But writing "Detergent" with vinegar was a bit shallow. We then decided to push our concept further and use another noun, and this time our random word was "Beauty"!
By mixing sugar with vinegar we ended up with a very cool hardened texture that glistened under the sunrays. The definition of beauty that is dictated by today's society is superficial and damaging to everyone on this planet. What better way to criticize our decaying vision than by writing the word with a staining ingredient, that is going to fade over time and attract a big number of insects to feast on it. 
We even drew a comparison to plastic surgery by covering up the letters with bandages. (Revealing video.)
The Revealing
The Making Of