Glass Baby Bottles with Natural Response Nipple Size S - Anti Colic

In this review the focus is on practical feeding for infants who need a slow, breastlike flow and parents who prefer glass over plastic. These Beilastarx bottles stand out for their borosilicate glass construction and a Natural Response silicone nipple designed to reduce air intake, which is the single biggest reason to consider them. The pack of four 6oz bottles is aimed at babies moving past the newborn stage who benefit from a soft, breast-friendly nipple and a wide neck that makes cleaning and sterilizing straightforward.

Key Features

• Borosilicate glass: Heat-resistant, pure glass resists odors and staining and is easy to sterilize for safer daily feeding.
• Natural Response nipple: Food-grade silicone nipple is very soft and promotes a breastfeeding-like latch so babies can feed at their own pace.
• Anti-colic design: Air holes at the base of the nipple balance pressure and separate milk from air to help reduce colic and gas.
• Wide neck: The wide opening and streamlined body make the bottles easy to assemble, hand-wash, or place on the top rack of a dishwasher.
• Age-specific options: The brand offers size-specific nipple flows to match stages, with the S nipple intended for 1+ months in the 6oz size.

Who It's For

This set is best for parents who prefer glass bottles for hygiene and durability and for infants who need a slower, more natural flow that mimics breastfeeding. It suits caregivers who want a bottle that handles regular sterilization methods including boiling, microwave sterilizer and bottle warmers.

Not ideal for parents who need ultra-lightweight bottles for extended outings or for babies who require faster flow nipples right away; those shoppers should consider different nipple sizes or alternative materials better suited for travel.

Pros & Cons

Pros

• High-quality borosilicate glass is heat-resistant and does not retain odors.
• Natural Response silicone nipple helps babies transition between breast and bottle smoothly.
• Anti-colic air holes reduce swallowed air and can help with gas and fussiness.
• Wide neck design simplifies cleaning and sterilizing routines.

Cons

• Glass is heavier and can break if dropped, so extra care is required compared with plastic options.

Specifications

Brand	Beilastarx
Material	Borosilicate glass
Bottle volume (this pack)	6oz / 180ml
Nipple material	Food-grade silicone (Natural Response S)
Flow / Age guidance	S nipple recommended for 1+ months
Cleaning & sterilizing	Dishwasher top rack, boiling, microwave sterilizer, bottle warmer safe

Our Verdict

These glass baby bottles are a solid choice for parents who prioritize safe materials and a breastfeeding-friendly nipple. The borosilicate glass and anti-colic nipple combine to offer reliable daily use and easier sterilization, making the 6oz pack a good value for households moving beyond the newborn stage. Buyers should be mindful of glass handling but will appreciate the breastfeeding-like feed and reduced gas benefits.

Frequently Asked Questions

Are these bottles dishwasher safe?
Yes, they are safe on the top rack of the dishwasher and also compatible with boiling and microwave sterilizers.

What age is the S nipple for?
The S nipple included with the 6oz bottle is intended for about 1+ months and provides a slow, breastlike flow.

Do the bottles help with colic?
The nipple has air holes that balance pressure and separate milk from air to reduce swallowed air, which can help lower colic and gas for some babies.