Truthbrush sells biodegradable bamboo toothbrushes along with electric toothbrush heads compatible with Oral-B handles, both made with plant-based bristles from castor oil rather than standard plastic. The brand is vegan, ships carbon neutral, and is B-Corp certified, which matters to shoppers who care about where and how a product is made, not just whether it works. It is also female-founded, for anyone who specifically looks for that when choosing a brand.
The current Truthbrush voucher codes are listed here and checked several times a day.