Sustayne Toothbrush, Corn StarchHelp guests preserve their pearly whites with toothbrushes made with corn starch. These sturdy, attractive hospitality amenities make a bold statement that youre taking steps to minimize environmental impact. Soft nylon bristles. Individually packaged in a certified compostable* bio based sachet. Cornstarch toothbrush is made from 30 40% plant based materials and polypropylene (PP). This results in a durable, food grade material that won't break