Dr Brown’s Polypropylene review
The Dr. Brown's Natural Flow BPA free baby bottle is the only baby bottle that features a patented internal vent system. This vent eliminates the air bubbles and vacuum effect to allow positive-pressure feeding with no air - similar to breast-feeding. Designed to:
Reduce colic, spit-up, burping, and gas
Prevent air bubbles from forming in milk or formula
Help reduce fluid in the ear
Prevent nipple collapse
Features:
Made from BPA free polypropylene plastic
Easy to clean and top-rack dishwasher safe
Connects directly to most breast pumps
Includes 3 high-grade Level-One silicone nipple, patented two-piece internal vents, travel disks, caps, cleaning brush, and instructions