Infused with cleanpaste formula. Dentist recommended brand. Goes beyond removing particles for the ultimate clean, fresh feeling. Like brushing between teeth! Unique floss for average to wide tooth spacing. Embedded with toothpaste-like formula. No messy toothpaste residue. Dentists recommend flossing regularly because it is proven to remove plaque between teeth to help prevent gum disease. Yarn - USA, processed in the Dominican Republic.