--- product_id: 23993008 title: "Natural Flow Level 4 Baby Bottle Silicone Nipple, Fast Flow, 9m+, 100% Silicone Bottle Nipple, 6 Count (Pack of 1)" brand: "dr. brown's" price: "¥3781" currency: JPY in_stock: true category: "Dr. Brown's" url: https://www.desertcart.jp/products/23993008-natural-flow-level-4-baby-bottle-silicone-nipple-fast-flow store_origin: JP region: Japan --- # Fast Flow for 9m+ babies 100% soft, BPA-free silicone Clinically proven anti-colic vent Natural Flow Level 4 Baby Bottle Silicone Nipple, Fast Flow, 9m+, 100% Silicone Bottle Nipple, 6 Count (Pack of 1) **Brand:** dr. brown's **Price:** ¥3781 **Availability:** ✅ In Stock ## Summary > 👶 Fast Flow, Happy Baby, Peace of Mind! ## Quick Answers - **What is this?** Natural Flow Level 4 Baby Bottle Silicone Nipple, Fast Flow, 9m+, 100% Silicone Bottle Nipple, 6 Count (Pack of 1) by dr. brown's - **How much does it cost?** ¥3781 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/23993008-natural-flow-level-4-baby-bottle-silicone-nipple-fast-flow) ## Best For - dr. brown's enthusiasts ## Why This Product - Trusted dr. brown's brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Colic? Not Here!:** Anti-colic internal vent system clinically proven to reduce spit-up, burping, and gas for a happier, more comfortable baby. - • **Safe & Easy Care:** Dishwasher safe (top rack), microwave and electric sterilizer compatible, made from BPA-free silicone for peace of mind. - • **Fast Flow, No Fuss:** Level 4 nipple delivers the fastest flow for babies 9 months and older, keeping up with your little one's growing appetite. - • **Breast-Like Comfort:** Ergonomic silicone nipple shape encourages a natural latch, easing the transition between breast and bottle feeding. - • **Consistent & Reliable:** Vacuum-free feeding mimics breastfeeding with a steady flow rate, letting baby feed at their own pace without interruptions. ## Overview Dr. Brown's Natural Flow Level 4 Baby Bottle Silicone Nipple offers a fast flow rate designed for babies 9 months and older. Featuring a clinically proven anti-colic vent system, it reduces colic symptoms like spit-up and gas, ensuring a comfortable feeding experience. Made from 100% BPA-free silicone with a breast-like shape, it supports natural latch and smooth transition between breast and bottle. Dishwasher and sterilizer safe, this 6-pack delivers consistent, reliable feeding that preserves milk nutrients and promotes better digestion. ## Description desertcart.com : Dr. Brown's Natural Flow Level 4 Baby Bottle Silicone Nipple, Fast Flow, 9m+, 100% Silicone Bottle Nipple, 6 Count (Pack of 1) : Baby ## 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B015XBYL4Q | | Age Range Description | Baby | | Best Sellers Rank | #14 in Baby ( See Top 100 in Baby ) #1 in Baby Bottle Nipples | | Bottle Nipple Type | Fast Flow | | Brand | Dr. Brown's | | Customer Reviews | 4.8 out of 5 stars 14,301 Reviews | | Global Trade Identification Number | 10072239305796 | | Included Components | Dr. Brown's Natural Flow Baby Bottle Nipple - Level 4, Fast Flow - 6pk - 9m+ | | Item Type Name | Dr. Brown's Natural Flow Baby Bottle Narrow Nipple -Preemie, Level 1 - 4 and Y-Cut Nipples- 6packs - 0m - 9m+ | | Item Weight | 0.05 Pounds | | Liquid Flow Speed | Fast Flow | | Liquid Flow Speed Description | Fast Flow | | Manufacturer | Dr. Brown's | | Material | Silicone | | Material Type | Silicone | | Material Type Free | Bisphenol A Free | | Model Number | SN461-WEB | | Number of Pieces | 2 | | Part Number | SN461-WEB | | Size | 6 Count (Pack of 1) | | UPC | 072239305799 | | Unit Count | 6 Count | ## Product Details - **Bottle Nipple Type:** Fast Flow - **Brand:** Dr. Brown's - **Liquid Flow Speed Description:** Fast Flow - **Material:** Silicone - **Size:** 6 Count (Pack of 1) ## Images ![Natural Flow Level 4 Baby Bottle Silicone Nipple, Fast Flow, 9m+, 100% Silicone Bottle Nipple, 6 Count (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/81U0wv2lOPL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Are the Level 4 actually 4’s? They are labeled as Level 3** A: They sent me lvl 3s when I ordered 4s as well. They Aldo only sent me one order when I ordered 3... **Q: It says ships from and sold by amazon.com. but, why was it delivered in a clear cheap plastic bag? are these genuine or fake?** A: Thank you for your inquiry. The Dr. Brown's products available from Amazon are shipped in certified frustration-free packaging: Amazon Certified Frustration-Free Packaging is recyclable and comes without excess packaging materials. The product inside is the same, and everything is included in the Certified Frustration-Free Packaging that would be in the original manufacturer's packaging. **Q: The name says 6 pieces, but the description says 2. Which one is it?** A: 6 **Q: Hi! Do these fit similac travel bottles? Thx!** A: No. These are for the dr browns bottles ## Frequently Bought Together - Dr. Brown's Original Nipple, Level 4 (9m+), 6 Count - Dr. Brown's Natural Flow Anti-Colic Options+ Narrow Baby Bottle, 8 oz/250 mL, with Level 1 Slow Flow Nipples, 0m+, 4 Pack --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/23993008-natural-flow-level-4-baby-bottle-silicone-nipple-fast-flow](https://www.desertcart.jp/products/23993008-natural-flow-level-4-baby-bottle-silicone-nipple-fast-flow) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-16*