Dr. Brown's Natural Flow Anti-Colic glass baby bottles (4oz/120ml narrow neck) clinically reduce colic, spit-up & gas with internal vent system—#1 pediatrician-recommended for vacuum-free, breast-like feeding.

Key Features

Anti-Colic Vent System: Clinically proven to minimize colic, burping, gas & spit-up via vacuum-free feeding.

Borosilicate Glass: Heat/thermal shock-resistant; withstands hot/cold temps & sterilization.

Level 1 Slow Flow Nipple: Breast-shaped silicone promotes natural latch & consistent flow for newborns 0m+.

Nutrient Preservation: Internal vent maintains milk vitamins for better digestion & sleep.

Grow-With-Baby Design: Vent removable as feeding develops—no bottle switch needed.

Easy Cleaning: Top-rack dishwasher-safe, microwave/electric sterilizer & boiling compatible.

Technical Specifications

Feature Details

Capacity 4 fl oz (120 ml)

Material Pharmaceutical-grade borosilicate glass

Nipple Level 1 slow flow silicone (0m+)

Dimensions ~7.2"H x 2.3"D

Weight ~0.42 lbs per bottle

BPA-Free Yes, fully recyclable

Compatibility All Dr. Brown's narrow accessories

Condition Details

Brand new, factory-sealed with Level 1 nipple(s). No chips, scratches or wear—perfect for newborns/preemies.

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Shipping & Returns

Fast USPS Priority from Fontana, CA (2-4 days). 30-day returns if unopened.

Buy Now—Trusted Dr. Brown's glass bottles for colic-free feeding!

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Follow-ups

How to clean and sanitize glass baby bottles safely

Best practices for transitioning between breastfeeding and bottles

Differences between Dr Brown Narrow and Wide Neck bottles

Signs it is time to upgrade to a faster flow nipple level

Can the internal vent system be used without the bottle liner