Dr. Brown’s Natural Flow® Level 4 Wide-Neck Baby Bottle Silicone Nipple, Fast Flow, 9m+, 100% Silicone Bottle Nipple, 6 Pack

We switched to the Level 3 nipples as our baby grew, and the transition was very smooth. The flow feels consistent and well balanced, allowing comfortable feeding without overwhelming the baby. What I really appreciate is that these nipples maintain the same familiar Dr. Brown’s design, which helps avoid feeding issues when moving up a level. The material feels durable and holds its shape well even after regular cleaning and use. Overall, they’ve worked exactly as expected and made feeding time easier as our baby’s needs changed. A reliable option for parents looking for a natural flow and dependable quality.

Works great. No leaks. Easy to pop in and out for cleaning.

My toddler hated every sippy cup we tried (we tried over 9!) Finally I realized her bottles were comforting because she recognized them. We switched the nipples to sippy cup nipples and now it’s been great. It’s also nice to reuse what we have! No leakage, withstand the teeth of an teether and fit great.

amazing nipple, my daughter has such an easy time with these!

Work great, have never found them to be too slow or too fast for the appropriate size. Have lasted several months with weekly dishwasher cycles. Haven’t found them to leak other than the normal feeding quirks. Upgrade when ready, don’t buy them thinking it’ll 100% fix something when instead it just makes a big mess from flowing too quickly. Work for glass and plastic

Fits the Dr Browns bottles. Easy to clean and maintains shape and quality after numerous uses and cleanings. Helps regulate flow for baby.

Durable and thick. My grandson is teething and has chewed holes in his other nipples, these seem to last longer.

The nipple size just right. Even there are still a little leaks. For a 5 months baby who is gonna teething