How long does Cocofloss last? Catherine Cu September 14, 2016 18:51 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? Is Cocofloss available outside the US? Are Cocofloss aromas all natural? Comments 0 comments Please sign in to leave a comment.