Soap is a salt of a fatty acid usually used for washing and bathing. Evidences show that soap exists since the Ancient Babylon (around 2800 BC) = more than almost 4000 years ago. They invented soap mixing animal fats with wood ash and water. Originating from Syrian,...

The liquid shampoos and conditioners that you find at your local stores are made with 80% of water. In order to hold that large amount of water, they need to be package in a plastic container. On the other hand, shampoo and conditioner bars do not contain any water....