Quick answer
For colic relief, choose a glass baby bottle with a proven anti-colic vent system and a nipple flow that matches your baby's feeding pace. Both narrow and wide neck options have distinct advantages, so pick based on your baby's latch preference and your cleaning routine.
Why glass over plastic?
Glass baby bottles are free from chemicals like BPA and BPS, which can leach from some plastics. They are also easier to clean thoroughly, as glass doesn't scratch like plastic, so bacteria have fewer places to hide. The main trade-off is weight—glass bottles are heavier and more breakable, so they require careful handling, especially as your baby gets older and more active.
Narrow neck vs. wide neck: what matters for colic
Narrow neck bottles are often easier for small hands to grip and fit most standard bottle warmers and sterilizers. Wide neck bottles, on the other hand, mimic the breast more closely, which can help babies transition between breast and bottle. Both can include anti-colic vent systems, but the nipple shape and feel may influence how well your baby latches and swallows air.
Your decision rules for choosing a glass baby bottle
- Check the anti-colic system: Look for a bottle with an internal vent system that prevents vacuum buildup. This reduces air intake, which is a primary cause of colic and gas. Dr. Brown’s Options+ bottles use a clinically proven vent system.
- Match nipple flow to your baby's age: Newborns and younger babies need a slow flow nipple (Level 1) to prevent choking and overfeeding. As your baby grows, you can increase the flow level. Both Dr. Brown’s bottles come with Level 1 nipples. Always start with the slowest flow and upgrade only when your baby seems frustrated or takes longer to finish a feeding.
- Decide on neck width based on latch: If your baby is breastfed or has a shallow latch, a wide neck bottle may feel more natural. If your baby prefers a traditional bottle shape or you need compatibility with standard accessories, a narrow neck bottle is a practical choice. Test one of each style if possible, as baby preference can vary.
Product facts
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Glass Baby Bottle Natural Flow® Narrow Neck, Anti-Colic Options+™ with Level 1 Slow Flow Nipple: Dr. Brown’s Natural Flow® Anti-Colic Options+™ Narrow Glass Baby Bottle features a vacuum-free feeding system that is closest to breastfeeding, with a breast-like nipple shape. The narrow neck and slow-flow nipple help control milk intake, reducing air swallowing and colic symptoms for newborns.
Glass Baby Bottle Natural Flow® Narrow Neck, Anti-Colic Options+™ with Level 1 Slow Flow Nipple
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Natural Flow Anti-Colic Options+ Wide-Neck Glass Baby Bottle - Level 1 Slow Flow Nipple: Dr. Brown’s Natural Flow® Anti-Colic Options+™ Wide-Neck Glass Baby Bottle includes an anti-colic internal vent system clinically proven to reduce colic, decreasing spit-up. The wide neck encourages a deeper latch similar to breastfeeding, which can ease the transition from breast to bottle while still providing colic relief.
Natural Flow Anti-Colic Options+ Wide-Neck Glass Baby Bottle - Level 1 Slow Flow Nipple
Which bottle fits your baby best?
Best for
- Newborns and babies with colic who need a slow, controlled flow and a breast-like latch (wide neck option)
- Parents who want a bottle that fits standard warmers and sterilizers and is easier for small hands to hold (narrow neck option)
Not ideal for
- Older babies who need faster flow nipples (both bottles start with Level 1 slow flow)
- Families who prefer lightweight, unbreakable bottles for on-the-go use (glass is heavier and breakable)
