“It’s disappointing when I have to cut into a tooth to remove decay. Even sadder when a tooth cannot be saved,” says Cocolab co-founder Dr. Chrystle Cu. After struggling to inspire her patients to floss regularly, Dr. Cu teamed up with her sister Catherine to help save beautiful teeth from premature death and decay. Their high-intensity product, Cocolab, is cultivating a new generation of enthusiastic flossers. The Cu sisters believe that their plan to help fix the world’s teeth-retention problem is working. “We’re those quirky people cheerleading folks to floss everywhere we go,” Catherine says, “and we’re lifting floss culture, one floss at a time.”