How long does Cocofloss last? Catherine Cu January 12, 2019 06:20 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? What makes Cocofloss better? Are Cocofloss aromas all natural? Is Cocofloss available outside the US? Comments 0 comments Please sign in to leave a comment.