Did you know that you can make your own liquid laundry detergent at home ... Add in the essential oils to the castile soap. Mix castile soap, washing soda, and borax together.

In this case, let's do liquid soaps ... Let's start with how they make their soap. All of Dr. Bronner's soaps are pure-castile soaps, meaning they're made out of vegetable oils like organic ...

Narrator: Here's how four soap factories create their products. Dr. Bronner's Magic Soaps has been around since 1948 and is most famous for its pure castile ... can make over 14.3 million bottles ...