Aleppo or olive oil soap is a famous type of handmade soap that is made from only three ingredients, and is world-renowned for leaving skin clean and soft.

With some of the earliest recipes dating back to 2400 BC, Aleppo soap is widely considered to be the first soap ever made [source].

The ingredients are simple: olive oil (roughly 82%), laurel oil (roughly 12%) and soda (water and lye) [source]. Olives and laurel berries grow wild throughout northern Syria and southeast Turkey.

Below you can see some photos of the olive oil soap making process at a factory in Syria. The photos were recently posted to reddit by user TwelveColonies.

[via TwelveColonies on reddit]