Gulicola Natural Glass Baby Bottle 4 Pack - Extra Slow Flow

In this review of the Gulicola Natural Glass Baby Bottle 4 Pack the bottom line is simple: this set is aimed at breastfeeding parents who want a glass alternative that helps ease latching and reduces colic. The four 5 oz bottles come with extra slow flow nipples meant for 0m+ babies and a new nipple design that guides latch, so the single biggest reason to buy is its combination of a breastlike nipple and toxin-free borosilicate glass construction for worry-free feeding.

Key Features

• 4 Pack, 5 oz Bottles: Four small bottles are convenient for frequent newborn feeds and for rotating through use and cleaning without running out.
• Extra Slow Flow Nipples: The 0m+ extra slow flow helps control milk delivery so newborns can manage suction and reduces gulping.
• Premium Borosilicate Glass: The glass is naturally free of BPA, BPS and phthalates, giving parents a safer delivery surface than many plastics.
• New Nipple Latch Guide: Points on the nipple encourage an appropriate latch to support breastfed babies transitioning to bottle feeds.
• Anti-Colic Vents: Built-in vents reduce air intake so babies can drink more continuously without swallowing bubbles or gasping for air.
• Easy to Clean Design: Wide neck and only four pieces per bottle make washing and reassembly quick and straightforward.

Who It's For

This set is best for breastfeeding parents who want a glass bottle that mimics the breast and supports natural latch mechanics, especially during the early weeks when flow control and nipple feel matter most. The extra slow flow and ultra-soft nipple are aimed at newborns and small infants who need a gentle, controlled feed.

Parents who need larger capacity bottles, a wide range of nipple flows included, or are worried about glass breakage in a busy household may want to look elsewhere. Families who prefer disposable options or want many nipple sizes in one kit should consider other sets.

Pros & Cons

Pros

• Glass construction provides a toxin-free feeding surface and feels solid in hand.
• Ultra-soft, breastlike nipple and latch guide help breastfed babies accept the bottle easily.
• Anti-colic venting and extra slow flow reduce air swallowing and help with steady feeding.
• Simple four-piece design is quick to clean and reassemble, saving time for busy parents.

Cons

• Glass bottles can be fragile; a few users report breakage during washing or handling.
• The set includes only extra slow flow nipples, so parents needing faster flows must purchase replacements separately.

Specifications

Brand	Gulicola
Pack Size	4 bottles
Bottle Capacity	5 oz
Nipple Flow	Extra slow flow (0m+)
Material	Borosilicate glass
Includes	4 bottles, 4 nipples, 4 storage caps
Cleaning	Sterilizable in warmer, microwave, sterilizer or boiling water

Our Verdict

The Gulicola Natural Glass Baby Bottle 4 Pack is a strong choice for nursing parents who want a glass bottle that supports natural latch and limits air intake. It is good value for those prioritizing safety and breastfeeding compatibility, though households that need unbreakable bottles or multiple flow options may prefer an alternative.

Frequently Asked Questions

Are these bottles safe for sterilizing?
Yes. The borosilicate glass bottles can be sterilized in a bottle warmer, microwave sterilizer or by boiling water.

What age and flow are the nipples designed for?
The included nipples are extra slow flow designed for newborns from 0 months and up to support gentle suction.

Do the bottles reduce colic?
The anti-colic vents are designed to reduce air intake, which can help minimize gas and bubbling during feeds for some babies.