4 oz Glass Baby Bottle

$9.14 ~~$14.99~~ In stock

Lifefactory Baby Bottles are made of the highest quality, thermal shock resistant borosilicate glass. This allows these glass bottles to transition safely from freezer to boiling water. The silicone sleeves provide a good gripping surface for little hands and help protect against the occasional drop.

BPA and phthalate free
4 oz: Stage 1 (0-3 months) nipple, 9 oz: Stage 2: (3-6 months) nipple
Dishwasher safe
All components are made in the USA or Europe

Customer Reviews (4.6 / 5 · 5 reviews)

John ★★★★★ Oct 13, 2026

The borosilicate glass feels sturdier than the plastic bottles we used before, and I love that I can warm it straight in boiling water without worrying about cracks. The silicone sleeve helps my daughter grip it once she started holding it herself.

Timothy ★★★★★ Oct 11, 2026

The glass feels sturdy and the sleeve gives a good grip, but the best part is boiling it right after freezing—no cracks at all. Cleans up perfectly, and my baby takes it well.

Jacob Z. ★★★★★ Sep 15, 2026

Switched to this after our plastic bottles started smelling weird no matter how I washed them, and the borosilicate glass has been great — I've taken it straight from the freezer into warm water with no cracks. The 4 oz size is perfect for my 3-month-old's smaller feeds.