So her nicht:
The publication of the book was a turning point for the two women. It served as a litmus test for their concept. They say that the fact that they were authors gave the brand added “legitimacy” and gravitas.
Vielleicht besser so:
We think that these four things take care of most people’s needs and we don’t think that people ultimately need a lot of product. It generally just sits in a bathroom looking ugly. Our simple, beautiful, restrained packaging is rather wonderful. Most companies survive by releasing a new product every month, and we are the total opposite.