Dr. Brown's Natural Flow Level 4, Narrow Baby Bottle Nipple, Fast Flow, 9m+, 100% Silicone, 6 Pack
Dr. Brown's Natural Flow Level 4, Narrow Baby Bottle Nipple, Fast Flow, 9m+, 100% Silicone, 6 Pack
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Dr. Brown's Natural Flow Level 4, Narrow Baby Bottle Nipple, Fast Flow, 9m+, 100% Silicone, 6 Pack

1,020 ratings
Dr. Brown's Natural Flow Level 4, Narrow Baby Bottle Nipple, Fast Flow, 9m+, 100% Silicone, 6 PackDr Brown s Natural Flow Level 4 Narrow Baby Bottle Nipple Fast Flow 9m 100 Silicone 6 PackDr Brown s Natural Flow Level 3 Narrow Baby Bottle Nipple Medium Fast Flow 6m 100 Silicone 6 PackDr Brown s Ultra Preemie Narrow Baby Bottle Nipple Specialty Extra Slow Flow Rate 100 Silicone BPA Free 0m 6 PackDr Brown s Natural Flow Y Cut Narrow Baby Bottle Nipple Ideal for Thicker Liquids 9m 100 Silicone 6 PackDr Brown s Natural Flow Preemie Flow Narrow Baby Bottle Nipple Slowest Flow 0m 100 Silicone 6 PackDr Brown s Natural Flow Baby Bottle Narrow Nipple Transition Level T 6 Pack 0m
Actual ColorLevel 4, Clear

Key item features

  • FAST FLOW NIPPLE FOR BABY. Dr. Brown's Fast Flow Nipple is the fastest flow for babies 9m+.
  • ANTI-COLIC BABY BOTTLE WITH NIPPLE. Level 4 Nipple, with Anti-Colic internal vent system, is clinically proven to reduce colic. Decreases spit-up, burping and gas and provides a more comfortable feeding experience for baby.
  • CONSISTENT FLOW RATE. Vacuum-free feeding is closest to breastfeeding and Dr. Brown's Fast Flow Nipples provide a consistent flow so babies can feed at their own pace.
  • DEPENDABLE NIPPLE FLOW. Each nipple level provides clinical consistency within the flow rate, so baby's feeding experience is constant and comfortable.
  • BREASTFEEDING SILICONE NIPPLE. The breast-like nipple shape encourages a proper latch for a more natural bottle feeding experience and eases the transition from breast to bottle and back again.
  • PRESERVES NUTRIENTS. The Level 4 Nipple and Anti-Colic vent system is proven to help preserve bottle milk nutrients and aid in digestion for a better night's sleep.
  • SOFT 100% SILICONE. Silicone nipple fits all Dr. Brown's narrow bottles.
  • DISHWASHER SAFE. Safe for use in dishwasher (top rack only), electric and microwave sterilizers or boiling water. BPA Free.
  • Dr. Brown's Natural Flow Level 4, Narrow Baby Bottle Nipple, Fast Flow, 9m+, 100% Silicone, 6 Pack

About this item

Product details

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Customer ratings & reviews

4.6 out of 5 stars
stars
1,020 ratings367 reviews
How item rating is calculated
  1. 5 stars81% (822)
  2. 4 stars9% (87)
  3. 3 stars3% (33)
  4. 2 stars2% (16)
  5. 1 star6% (62)

Reviews summary

Pros

  • : The nipple fits securely and the silicone sleeve enhances grip.
  • : The bottle decreased gas and spit-up during feedings.
  • : The bottles washed clean and stayed intact with sleeves.
  • : The pack bundles multiple nipples into one package.
  • : The bottle reduces gassiness, spit-up and controls milk flow.

Neutral

  • : It yields breastlike flow but varies from slow to fast; it can leak.
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Showing 1-3 of 367 reviews

Jul 29, 2026
Reviewer name: Stephanie
Item details
Color: Level Ultra-Preemie, Clear
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Super slow! Perfect for all ages

Slowest nipple! Wish I had used it sooner as it saved my breastfeeding journey when baby started getting distracted and preferred fast flow. Got him back interested in nursing more often and were going strong at 9 months postpartum, still on this ultra preemie nipple. Does not mimic human nipple but considering how slow it is and how affordable, it's still very much worth it. Does not leak. In fact, I have used the same bottles and nipples for all three of my children (3 under 3) I never had an issue except for maybe one time.

Helpful?5AOESP8G3XMG888212299
Sep 5, 2026
Reviewer name: Ryan
Item details
Color: Level 3, Clear
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great item

Great item. Similar quality and effectiveness to other Dr. Brown's products. Paired this with a multi pack of 8 oz bottles. Wish you could buy the multi pack of bottles with any size of nipple so you don't have to make two purchases and have extra nipples in a size you don't need. But that isn't an issue related to this product.

Helpful?5AOESP8G3XMG888212299
Aug 25, 2026
Reviewer name: anonymous
Top Reviewer
Item details
Color: Level T, Clear
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

excellent

worked perfectly to help my baby learn to use a faster flow

Helpful?5AOESP8G3XMG888212299
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