# Bottle nipples for a premature baby Which bottle nipple is suited to feeding a premature baby? Dr\. Brown's Natural Flow Wide\-Neck Baby Bottle Silicone Nipple, Level Preemie \(WN1600\): The Preemie Flow wide\-neck nipple is the slowest\-flow nipple, meant for premature and breastfed newborns\. Dr\. Brown's Natural Flow Narrow Baby Bottle Silicone Nipple, Level Preemie, 2\-Pack: A parent reports their 2\-month\-old still uses the preemie Dr\. Brown's nipple because size 1 flows too fast\. ### 1. [Dr\. Brown's Natural Flow Wide\-Neck Baby Bottle Silicone Nipple, Level Preemie \(WN1600\)](/products/ucp/drbrownsbaby-com/9139833012501) (sold by drbrownsbaby\.com) The Preemie Flow wide\-neck nipple is the slowest\-flow nipple, meant for premature and breastfed newborns\. - Flow: The Preemie Flow wide\-neck nipple is the slowest\-flow nipple, meant for premature and breastfed newborns\. (guide) - Material: The nipple is described as super\-soft 100% silicone\. (guide) - Anti\-colic: Used with the anti\-colic internal vent system, the nipple is stated to be clinically proven to reduce colic and to decrease spit\-up, burping and gas\. (listing) - Fit: The silicone nipple fits all Dr\. Brown's Anti\-colic Options\+ Wide\-Neck bottles\. (listing) - Care: Safe for dishwasher top rack, electric and microwave sterilizers, or boiling water\. (guide) ### 2. [Dr\. Brown's Natural Flow Narrow Baby Bottle Silicone Nipple, Level Preemie, 2\-Pack](/products/ucp/drbrownsbaby-com/9206214459669) (sold by drbrownsbaby\.com) A parent reports their 2\-month\-old still uses the preemie Dr\. Brown's nipple because size 1 flows too fast\. - Flow: A parent reports their 2\-month\-old still uses the preemie Dr\. Brown's nipple because size 1 flows too fast\. (review) - Material: The nipple is super\-soft 100% silicone and fits all Dr\. Brown's narrow bottles\. (listing) - Anti\-colic: The maker page repeats that the silicone nipple with the anti\-colic internal vent system is clinically proven to reduce colic and decrease spit\-up, burping and gas\. (guide) - Fit: The web version of the nipple flow guidelines states all levels of Dr\. Brown's narrow silicone nipples may be used with the original Natural Flow, Zero\-Resistance, and Zero\-Resistance Specialty Feeding System\. (manual) - Care: - Every value in the table is a fact RoboTrunk checked, linked to the page it came from\. A dash means no checked fact fills that cell\. Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live\. Written 2026-10-12T16:16:34.815Z. This page is published by RoboTrunk, a store built for shopping agents. The store named on this page sells the product and ships it. RoboTrunk is not the seller and never holds the money. Buying works in one path. RoboTrunk's tools prepare a checkout at that store, then hand back a short-lived link. The person approves the total; once RoboTrunk has checked the store's total against it, the person is given the checkout link to tap in their own browser, or, if the person prefers and gives permission, their agent may open the link and finish there, and payment always happens on the store's own checkout page. RoboTrunk never takes the payment or sees a card. Where the rest of this site is: - /agent/story.md is what RoboTrunk is and how it works, in full. - /agent/tools.json is every tool, its arguments and its answers. - /agent/merchants is every store you can buy from through RoboTrunk. - /products/ucp is every store's indexed products. - /products/search is one search across every store, in plain words. - [What RoboTrunk is](/agent/story.md) - [Every tool, in your browser through WebMCP](/agent) - [The tools and how to call them](/agent/tools.json) - [The stores you can buy from](/agent/merchants) - [Every store's products](/products/ucp) - [Search every store at once](/products/search)