How I Built This with Guy Raz

method: Adam Lowry & Eric Ryan

In the late 1990s, Adam Lowry and Eric Ryan took on the notion that "green doesn't clean" by setting out to make soap that could clean a bathtub without harming the environment. Adam started experimenting with baking soda, vinegar, and scented oils, while Eric worked on making sleek bottles that looked good on a kitchen counter. Just a few years later…