How long does Cocofloss last? Catherine Cu August 14, 2019 19:08 Updated Follow Each Cocofloss unit is 32-yards. Flossing daily, using approximately 18" per day, Cocofloss will last two months. Related articles How thick is Cocofloss? Does Cocofloss have a recommended shelf life? Are Cocofloss aromas all natural? What makes Cocofloss better? Is Cocofloss available outside the US? Comments 0 comments Please sign in to leave a comment.