Assembly Line

What is shampoo made of?

Shampoo takes 8 things directly, among them vegetable oil, ethylene, sulfuric acid, caustic soda, water and rock salt. Trace them back and you pass 18 made things on the way to 18 raw materials.

How shampoo is made See it on the map

What goes straight in

From the ground: 18 raw materials

Made along the way: 12 things

Metals 1

Chemicals and fuels 8

Electronics 1

Food 2

What it is packed in

On the line, but left out of everything above, because it holds the finished thing rather than goes into it.