Dr. Brown’s Narrow Glass Baby Bottles 4 oz/120 mL, with Level 1 Slow Flow Nipple, 2 Pack, 0+ Months Babies
ANTI-COLIC GLASS BABY BOTTLE. Anti-Colic internal vent system is clinically proven to reduce colic. Decreases spit-up, burping and gas.
CONSISTENT FLOW RATE. Vacuum-free feeding is closest to breastfeeding and Dr. Brown’s silicone nipples provide a consistent flow so babies can feed at their own pace.
PRESERVES NUTRIENTS. The anti-colic vent system is proven to help preserve bottle milk nutrients and aids in digestion for a better night’s sleep.
BREASTFEEDING BOTTLE. The breast-like nipple shape encourages a proper latch for a more natural bottle feeding experience and eases the transition from breast to bottle and back again.
BOTTLE GROWS WITH BABY. Dr. Brown’s Natural Flow Anti-Colic Options+ baby bottle works best with the internal vent system in place but can be removed as baby’s feeding develops – no need to introduce a different bottle.
SUSTAINABLE BABY BOTTLE. Dr. Brown’s Narrow bottle is designed to nourish through all of baby’s feeding stages and is recyclable.
DISHWASHER SAFE. Safe for use in dishwasher (top rack only), electric and microwave sterilizers or boiling water. BPA Free.
Dr. Brown’s Natural Flow Anti-Colic Options+ Narrow Glass Baby Bottle 4 oz/120 mL, with Level 1 Slow Flow Nipple, 2 Pack, 0m+
🍼 Product Description & Features
1. Anti‑Colic Internal Vent System
The patented internal vent system is clinically proven to reduce colic, spit-up, burping, and gas by eliminating the vacuum and minimizing air ingestion during feeding .
Helps preserve nutrients in breastmilk/formula and improves digestion for better sleep .
2. Soft, Breast-Like Level 1 Nipple
Made from soft silicone, level 1 slow-flow nipples are designed for newborns (0+ months), enabling a natural latch and consistent flow that mimics breastfeeding .
3. Premium Borosilicate Glass Construction
Bottles are made of pharmaceutical-grade borosilicate glass: durable, heat-resistant, and shockproof—safe with hot/cold liquids and sterilization methods .
Glass is recyclable and free from BPA .
4. Narrow-Neck Design
The slim-neck design is ideal for breastfed babies, supporting natural latch and easy flow control .
5. Adaptable & Longevity-Focused
Bottles are compatible with or without the vent system—as your baby grows, you can simply remove the vent instead of switching bottles .
The 2-pack offers convenience and backup, often with an added travel/storage cap bundle .
6. Easy to Clean & Sterilize
Dishwasher (top rack), electric/microwave sterilizers, and boiling water all safe for glass and parts .
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✅ Benefits
Effective colic relief supported by clinical proof and pediatrician recommendation .
Breast‑mimicking design encourages easier transitions between breast and bottle feeding .
Hygienic and sustainable thanks to glass material that resists odor, staining, and is recyclable .
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⚠️ Considerations & User Feedback
Leak Issues
Some parents report leakage—especially with the 4 oz size:
> “They leak SO much … these bottles soak up milk … I'm done.”
“It leaks a lot if I put over 3 oz (in a 4 oz bottle).”
This often stems from misalignment during assembly or milk entering the vent chamber. Solutions include:
Ensuring the nipple is fully seated in its ring,
Securing vent firmly and cleaning/drying thoroughly before use .
Complex Assembly
Compared to simpler bottle designs, this bottle includes more parts (vent, tubing, nipple, ring), which some find cumbersome to wash .
Flow Rate Caution
Level 1 is intentionally slow (~9 mL/min). Some babies may experience prolonged feeding times and require early transition to higher flow nipples .
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⚙️ Technical Specs
Feature Details
Capacity 4 oz / 120 mL
Material Borosilicate glass, BPA-free
Nipple Silicone, Level 1 (slow flow), 0+ months
Vent System Internal anti-colic vent, removable
Cleaning/Sterilization Dishwasher (top rack), boiling, steam, microwave safe
Pack Includes 2 glass bottles, 2 nipples, vent parts ± travel caps
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👶 Who Is It Best For?
Newborns & Breastfed Babies: Ideal for those transitioning between breast and bottle with colic/air issues.
Parents Accepting More Maintenance: Best for caregivers comfortable assembling several parts in exchange for colic benefits.
Misaligned Assembly Caution: Not ideal if you need quick setups; proper cleaning and assembly procedures are critical.
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🧭 Final Take
The Dr. Brown’s Narrow Glass Options+ 4 oz bottles with Level 1 nipples are a great choice for newborns needing slow, paced feeding and colic prevention. They're backed by clinical evidence and designed to mimic breastfeeding—but expect extra care in cleaning and assembly to avoid leaks.
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