Options+ Wide-Neck Anti-Colic Bottle, 2-Pack, 270ml

Dr Brown's internal vent system takes a more involved approach than a simple valve: a straw-like vent tube runs through the bottle, channelling air away from the milk into a separate chamber rather than through it. It's the most "parts-heavy" system in this category — more pieces to wash and assemble than a simple valved bottle — but many parents and clinicians consider it the most effective at genuinely eliminating negative pressure and air ingestion, particularly useful for babies with reflux or particularly sensitive digestion.

Against Tommee Tippee's Closer to Nature and MAM's Easy Start, Dr Brown's is the "more work, more effective" option: extra parts to sterilise and assemble each feed, in exchange for what many consider the most thorough anti-colic mechanism available. The Options+ wide-neck version also lets you remove the vent system entirely once your baby has grown past needing it, simplifying to a standard bottle without buying a new one.