46+ Dr Brown's Natural Flow Bottles UK. Now, 20 years later, dr brown's has made another first, the natural flow options bottles. The idea is that parents use the vent when babies are smaller and have colic or digestion problems.
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Brown's natural flow glass baby bottles are definitely better than the plastic ones. The market's first convertible bottle that can be used with or without the vent. Brown's natural flow options baby bottles 3 pack 9 oz level 1 new in box. By eliminating the vacuum and air bubbles, it helps to reduce feeding problems like colic, burping and gas.