A first-of-its-kind university study
to measure nutrient levels in breastmilk and formula during a typical 20-minute feeding determined that Dr. Brown's fully vented bottles help maintain levels of important nutrients like vitamins C, A & E.

• Helps maintain vitamins C, A & E:
  Patented internal vent system is proven to minimize oxidation of breastmilk and formula,
  to help maintain essential nutrients.
• Positive-pressure feeding:
  Fully vented bottle design provides vacuum-free feeding similar to breastfeeding.
• Helps reduce colic:
  Vent system eliminates negative pressure and air bubbles to help reduce colic, spit-up, burping and gas.