The ages shown on our packs are just an indication as every baby has their own drinking rhythm and the best nipple flow will depend on how they drink.
  Try a higher flow if your baby:   Try a lower flow if your baby: 
 
 
 
 
 
 

 

  It can take a few tries for your baby to get used to the new Natural Response Nipple — especially if they’re used to a traditional free-flow nipple.   If your baby is used to our original Natural nipple, we recommend a higher flow number from the Natural Response range.
  Flow Flow Flow Flow Flow
  Natural (original) 0 1 2 3 4
  Natural (new) 2 3 4 5 5
 Response
Natural
(original)
Natural
Response
(new)
Natural
(original)
Natural
Response
(new)