The bottle nipple database.

117 nipples across 23 brands — with lab-measured flow rates, cross-brand compatibility, and symptom-based guidance. Because "slow flow" means something different on every brand.

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Flow Rate Decoder

Your baby is gulping. What nipple has the same label but slower actual flow?

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Compatibility Checker

You have Pigeon wide-neck bottles. Which nipples physically fit?

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Symptom Matcher

Baby is gassy, clicking, or refusing the bottle. Get nipple-change recommendations backed by research.

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Why labels aren't enough

Clinical testing shows that nipples labeled "slow flow" range from 1.68 to 15+ mL/min — a 9× difference. Comotomo's slow flow delivers the same volume as Dr. Brown's Level 2 (medium flow). This database shows actual measured rates alongside manufacturer labels. Source →

Nipple selection guides

Technique & troubleshooting

Brand guides