Use 4 oz/125 mL bottle
InformationalStage 0-3m
Use the 4 oz/125 mL Natural Response bottle. The cited 4 oz product page includes a Slow Nipple and lists the stage as 0-3m.
Bottles
Baby bottle
Age & weight limits
Transitions
Adjustments and changes as your baby grows, in the order they typically come up.
Stage 0-3m
Use the 4 oz/125 mL Natural Response bottle. The cited 4 oz product page includes a Slow Nipple and lists the stage as 0-3m.
when your baby takes longer than 20 minutes to drink 50 ml/1.7 oz using the Natural Response nipples
Switch to the “First Flow” nipple (Nipple 0) before progressing to the Natural Response nipples.
Your baby is not getting enough milk from the bottle; the duration of the feed is too long (for example, longer than 30 minutes); or your baby falls asleep during feeding, gets frustrated, or plays with the nipple instead of drinking.
Change to a nipple with a higher flow rate.
Your baby is gulping the milk down or milk leaks out of its mouth during feeding.
Change to a nipple with a lower flow rate.
Stage 3-6m
Move to a 9 oz/260 mL Natural Response bottle. The cited 9 oz product page includes a Medium Nipple and lists the stage as 3-6m.
Stage 6m+
Move to an 11 oz/330 mL Natural Response bottle. The cited 11 oz product page includes a Fast Nipple and lists the stage as 6m+.
Safety
Details
Compatibility
Setup notes
Care instructions
Sourced from the manufacturer's official documentation. View official source.