# Dr\. Brown's bottle nipples with a Y\-cut for thicker liquids

Which bottle nipples have a Y\-cut for thicker liquids?

Dr\. Brown's Natural Flow Narrow Baby Bottle Silicone Nipple, Level Y\-Cut, 2\-Pack: For thicker formula or enriched liquids, ensures smooth and comfortable feeding\. Y\-Cut nipple flow rate should only be used for the highest level of viscosity\. Dr\. Brown's Natural Flow Wide\-Neck Baby Bottle Silicone Nipple, SKU WNY201: The product family has six flow levels spanning 0m\+ through 9m\+ and thicker liquids\.

### 1. [Dr\. Brown's Natural Flow Narrow Baby Bottle Silicone Nipple, Level Y\-Cut, 2\-Pack](/products/ucp/drbrownsbaby-com/9139833667861) (sold by drbrownsbaby\.com)

Y\-Cut nipple flow rate should only be used for the highest level of viscosity\.

- Thicker liquids: For thicker formula or enriched liquids, ensures smooth and comfortable feeding\. (guide) <https://www.drbrowns.co.uk/products/dr-browns-narrow-neck-options-y-cut-teat>
- Clogging: The tester found the Dr Brown's Y\-cut nipple was the only one tested that did not clog with thickened milk\. (blog) <https://manufraga.wixsite.com/mamaesemneura/post/2014/09/05/em-busca-da-mamadeira-perfeita-para-l%C3%ADquidos-grossos>
- Pack size: Sold as a 2\-pack\. (listing) <https://4f71f1-4.myshopify.com/products.json>

### 2. [Dr\. Brown's Natural Flow Wide\-Neck Baby Bottle Silicone Nipple, SKU WNY201](/products/ucp/drbrownsbaby-com/9139834618133) (sold by drbrownsbaby\.com)

The product family has six flow levels spanning 0m\+ through 9m\+ and thicker liquids\.

- Thicker liquids: The product family has six flow levels spanning 0m\+ through 9m\+ and thicker liquids\. (listing) <https://4f71f1-4.myshopify.com/products.json>
- Clogging: -
- Pack size: -

## Also cited in the text

- Dr\. Brown's Natural Flow Narrow Baby Bottle Silicone Nipple, Level Y\-Cut, 2\-Pack, Y\-Cut viscosity: Y\-Cut nipple flow rate should only be used for the highest level of viscosity\. (manual) <https://www.drbrownsmedical.com/wp-content/uploads/2024/07/Dr.-Browns-Medical-Nipple-Selection-Guide-for-all-Zero-Resistance%E2%84%A2-Bottle-Systems-English.pdf>

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 2026-10-17T00:18:07.190Z.

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)