Pacifiers for Lansinoh bottles are free from BPA and BPS. The pacifier has been clinically tested to perfectly satisfy breastfed babies. It reduces the amount of air that enters with the milk, thereby decreasing the risk of colic and vomiting. Developed based on 50 years of research, it has been shown that the baby must be able to perform peristaltic tongue movements to stimulate the natural development of the mouth and jaw. The wide-necked NaturalWave pacifier promotes sucking in a way that is similar to the natural sucking of the baby's nipple and mimics the same wave-like tongue movement, allowing the baby to easily switch between breastfeeding and bottle feeding.