Has anyone used these for a 6 month old?

Yes, They worked great for my son while he was drinking formula and oat cereal. I started using them around 4 months with him for his acid reflux.

Is the Y cut only for thicker liquid? Or would it help make practice for a straw?

The y-cut nipple is designed for thicker liquids and does not help practice for a straw. We make a Dr. Brown’s® Milestones™ Narrow Sippy Straw Bottle with 100% Silicone Handles, 8oz/250mL, Gray & Blue, 2 Pack, 6m+ and a Dr. Brown's Milestones, Baby's First Straw Cup Sippy Cup that helps with this. Here are the links: https://www.amazon.com/Dr-Browns-Bottle-Silicone-Handles/dp/B09BDKT8KZ/ref=sr_1_2?crid=3GL1TABMJXQM&keywords=dr+brown%27s+sippy+straw+bottle&qid=1690404231&sprefix=dr+brown%27s+sippy+straw%2Caps%2C157&sr=8-2 https://www.amazon.com/Dr-Browns-Milestones-Babys-First/dp/B0C54CC37M/ref=sr_1_4?crid=3GL1TABMJXQM&keywords=dr+brown%27s+sippy+straw+bottle&qid=1690404231&sprefix=dr+brown%27s+sippy+straw%2Caps%2C157&sr=8-4

I have a 6 month old who needs rice cereal in her formula,We currently have level 2, would the level 4 be better, or the Y cut?

I use an x cut but found the rice cereal clogged in the Dr. Brown vents. I bought some evenflow x cut nipples that have a vent on the nipple itselfand no longer use the Dr. Brown's. I have had good results!

Do they fit playtex bottle ??

I bought secondhand playtex ventaire bottles. The narrow necked ventaires aren’t sold anymore. Dr. Brown’s narrow nipples work perfectly.

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Dr. Brown's Natural Flow Y-Cut Narrow Baby Bottle Silicone, Ideal for Thicker Liquids, 9m+, 100% Silicone Bottle, 6 Count (Pack of 1)

Product ID: 270871536

Details

Bottle nipple type
Anti-Colic
Brand
Dr. Brown's
Liquid flow speed description
Medium Flow
Material
Silicone
Size
6 Count (Pack

🌿100% soft silicone, BPA-free

🍼Y-Cut nipple for thick liquids

🛡️Clinically proven anti-colic vent

€ 36.54

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Description

🍼 Feed Thick, Flow Smooth — Because Baby Deserves the Best!

SAFE EASY MAINTENANCE - Dishwasher safe and BPA-free for busy parents who want convenience without compromise.
THICKER LIQUIDS NO FUSS - Y-Cut nipple designed for smooth flow of formula, milk, and cereal thicker than usual.
BREAST LIKE NATURAL LATCH - Soft silicone nipple mimics breastfeeding to ease transitions and encourage proper latch.
CLINICALLY PROVEN COMFORT - Anti-colic vent system reduces spit-up, gas, and burping for happier, calmer feedings.
CONSISTENT FLOW BABYS PACE - Vacuum-free feeding with reliable medium flow lets baby feed comfortably and confidently.

Dr. Brown's Natural Flow Y-Cut Narrow Baby Bottle Nipples are expertly crafted for babies 9 months and older ready for thicker liquids. Featuring a clinically proven anti-colic vent system and a breast-like 100% silicone nipple, these bottles reduce colic symptoms while preserving nutrients. Designed for consistent, vacuum-free feeding, they support a natural latch and comfortable feeding pace. BPA-free and dishwasher safe, this 6-count pack fits all Dr. Brown’s narrow bottles, making it a trusted choice for modern parents seeking both performance and peace of mind.

Specifications

ASIN	B015XBYKVA
Age Range Description	Infant
Best Sellers Rank	#250 in Baby Products ( See Top 100 in Baby Products ) #2 in Baby Bottle Nipples
Bottle Nipple Type	Anti-Colic
Brand	Dr. Brown's
Compatible Baby Bottle Model	Dr. Brown's Narrow Bottles
Customer Reviews	4.7 4.7 out of 5 stars (6,669)
Global Trade Identification Number	00072239305805
Included Components	Dr. Brown's Natural Flow Baby Bottle - Y-Cut, Fast Flow - 6pk - 9m+
Item Type Name	Dr. Brown's Natural Flow Baby Bottle Narrow -Preemie, Level 1 - 4 and Y-Cut - 6packs - 0m - 9m+
Item Weight	45 g
Liquid Flow Speed	Medium Flow
Manufacturer	Dr. Brown's
Material Type	Silicone
Material Type Free	Latex Free
Model Number	SN561-WEB
Number of Items	1
Number of Pieces	6
Part Number	SN561-WEB
Size	6 Count (Pack of 1)
UPC	072239305805
Unit Count	6 Count

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€ 36.54

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Croatia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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