Listerine Oral Challenge! Our family tested out a variety of Listerine and Reach products, including tooth brushes, floss, and mouth rinses designed for adults and children. We each took a bottle of rinse and used it for the duration. I tried out the "less-intense" mouthwash, which I really liked. The kids enjoyed the children-friendly mouthwashes, although we ended up donating the Barbie mouthwash and toothbrush because the boys wouldn't use it.The kids fought over the Batman and Phineas and Ferb mouthwash, which made it much more fun for them to rinse.