Dr. Browns Standard Polypropylene 4oz Baby Bottle- BPA FREE

Dr. Brown's Natural Flow Polypropylene 4oz Standard Baby Bottle

• Ideal for All Newborns
• BPA, PVC, Lead, and Phthalate FREE
• Made in the USA
• Contains:
  • 1- 4oz standard polypropylene baby bottles
  • 1-Level-One silicone nipple
  • 1-Two-piece patented internal vent
  • 1-cleaning brush
  • instructions

Reduces Colic

Top-Rack dishwasher safe

Patented internal vent system eliminates the negative pressure and excess air ingestion

1. The patented Natural Flow internal vent system is the only vent that eliminates the vacuum and the air bubbles found in most baby bottles. It allows air to enter through the nipple collar without being incorporated into the breast milk or formula.
2. The air is then channeled through the internal vent system to the area above the breast milk or formula
3. Babies feed more comfortably because the vent allows them to nurse without fighting the negative effects of a vacuum or the discomfort of ingesting air bubbles. This helps to reduce colic, spit-up and gas.
4. The breat milk or formula flows freely through the nipple as the air is channeled to the top of the bottle. Air never mixes with the breastmilk or formula which minimizes oxidation and helps maintain essential nutrients like vitamins C, A and E. This positive pressume eliminates nipple collapse and can help reduce build up of fluid in baby's ear.