0 m+
We blow the glass, mold the PP and PPSU, and pour the silicone for five nipple flows. Every bottle on this site shares the same wide neck, so the nipple your baby settles on today still fits the bottle you buy at nine months.
Nipples, collars, caps and straw parts swap across every bottle we make, from the 3 oz newborn glass to the 9 oz PPSU.
SS for the first weeks through LL for confident feeders. The age is printed on the nipple, so a mid-night swap does not need guesswork.
Borosilicate glass that shrugs off temperature swings, light PP for the diaper bag, PPSU that takes months of daily sterilizing.
We keep the catalogue; a large retail partner handles the cart, payment and the box at your door. Buy buttons take you straight there.
Babies do not read size charts, but they do outgrow flows. Pick the shelf that matches where yours is right now; every path below leads to the same wide neck.
These are the bottles with the most parent ratings on our listings right now, one per family so you see the range and not four colors of the same thing.
Crafted from borosilicate glass, this three-ounce twin set pairs ultra-soft extra slow nipples with a wide neck for newborns.
Crafted with thermal-resistant borosilicate glass, this four-pack of five-ounce pink bottles supports early newborn feeding rhythms.
Two borosilicate glass bottles in 3 oz and 5 oz sizes pair with early-stage nipples to support steady newborn feedings.
Sized for babies around three months and up, this medium flow silicone nipple supports steady feeds across our wide-neck bottles.
Polypropylene bottles in a five-ounce size paired with Extra Slow flow nipples give newborns a gentle start to bottle feeding.
A 360-degree weighted straw and ergonomic handles help your little one learn independent drinking from any angle.
Durable PPSU meets our extra-slow silicone nipple in a seven-ounce wide-neck bottle shaped for comfortable early feedings.
Molded from resilient PPSU, this 9 oz bottle pairs a medium-flow silicone nipple with latch guides for growing babies.
From the 3 oz newborn pair to the 8 oz four-pack, each one takes the same wide-neck nipple and comes apart into four pieces for washing.
Browse the glass shelf →Two questions, one answerTell it how old your baby is and which material you lean towards. It reads our own level chart and points at a shelf, 3 oz to 9 oz.
Open the flow finder →We make the same wide-neck bottle in three materials because no single one wins every household. The numbers below come straight from our catalogue as it stands today.
| Material | Bottles on the shelf | Sizes we blow or mould | Marked from | Shelf starts at |
|---|---|---|---|---|
| Borosilicate glass | 14 | 3 oz, 5 oz, 8 oz | 0 m+ | $25.18 |
| PP (polypropylene) | 3 | 5 oz, 8 oz | 0 m+ | $31.98 |
| PPSU | 2 | 7 oz, 9 oz | 0 m+ | $16.98 |
| PPSU with weighted straw | 1 | 9 oz | 6 m+ | $19.98 |
The latest additions to the line, from fresh bottle runs to the small parts that keep older bottles in service.
Pre-portion dry milk powder into interlocking tiers designed for smooth travel feeding and quick bottle prep on the go.
Keep tiny fingers neat and smooth with our compact four-in-one grooming set designed specifically for newborn nursery routines.
Soft silicone cushioning wraps your five ounce glass bottles to improve grip, insulate heat, and protect against accidental drops.
Keep your feeding routine running smoothly with our replacement glass bottles, blown from thermal shock resistant borosilicate.
Every nipple we mould fits every bottle we blow. Moving up a flow level means a new nipple, never a new bottle.
Borosilicate glass, PP or PPSU, food-grade silicone. The label says which, the shelf page says why, and you pick by weight and feel.
5 levels from SS to LL, marked right on the silicone, so the drying rack never turns into a guessing game.
We make these three-ounce bottles from thermal-shock resistant borosilicate glass to suit the smallest feedings. Each bottle comes fitted with an extra slow flow silicone nipple featuring guide points that encourage an intuitive latch. The compact glass body warms evenly and cleans down quickly after every meal.
A bottle that is looked after pours the same on day two hundred as on day one. Two short lists cover most of it.
Words from parents on our listings, quoted as written. We did not tidy them up.
I originally bought 2 of the 3oz bottles to test and see how my twins liked them, and we’ve definitely been back to purchase more! With twins I am mainly pumping and bottle feeding. These bottles have made it possible to also latch my less experienced breastfeeding babies a few times a week.
These are our favorite bottles we have used for our baby. Now that he’s bigger he uses the 8oz bottles almost exclusively, but the extra slow flow of these was perfect for when he was a tiny baby. We’ve never had any issues with leaking or chipping or anything of the sort, and they’ve held up well through nearly a year of washing and sanitizing.
Absolute favorite bottles ever! Best for keeping breast milk the same temperature throughout without having random cold and hot spots. Super thick glass material. Light weight and perfect for any size hands. Had little to no leakage unless the bottle was left upside down due to my forgetfulness. They work great as smoothie and yogurt containers now!
Short notes we wrote for the questions that reach our inbox most: materials, flows, care, sizing and feeding away from home.
We make the same wide-neck bottle in three materials. Here is how we decide which one to hand a parent.
Read the note →SS to LL, Level 0 to Level 4. What the codes on our nipples mean and when we suggest moving up.
Read the note →Four parts, no hidden channels. Our routine for keeping bottles clean and knowing when silicone is done.
Read the note →A bottle gets used for a year, maybe a little more, and then it is done. We think that year deserves glass that pours clean, silicone that meters properly and parts that keep fitting each other from the first ounce to the last. That is the whole idea behind Gulicola.
We make baby bottles and the parts that keep them working, and we make them around one decision that shapes everything else: a single wide neck across the whole line. The 29 pieces in this catalogue share that neck, which is why a nipple bought for a 3 oz glass bottle screws just as happily onto a 9 oz PPSU one. Materials change, sizes change, the thread does not.
This site is our own shelf map. Prices shown here are read from the retail listing, and the buy button hands you to our retail partner, who runs checkout, delivery and their own returns window. What stays on our side is the part we know best: which bottle, which nipple, and when.
| Shelf | Reach for it when | What sits there |
|---|---|---|
| Glass Baby Bottles | Home feeds, the first weeks, parents who like a bottle with some heft | 3 oz to 8 oz borosilicate bottles in 2-packs and 4-packs, white, pink and black |
| PP & PPSU Baby Bottles | The nappy bag, babies who hold the bottle themselves, steriliser regulars | 5 oz to 9 oz lightweight bottles and the weighted straw cup |
| Bottle Nipples | Flow changes and spares, three to a pack | Levels 0 to 4 in silicone, one wide-neck fit for every bottle we make |
| Parts & Accessories | Keeping bottles already on your shelf in service | Replacement parts, silicone sleeves, a formula dispenser and a newborn nail kit |
| Mark | Flow | Printed for | Products carrying it |
|---|---|---|---|
| SS · Level 0 | Extra slow flow | newborns from day one | 10 |
| S · Level 1 | Slow flow | 1 month and up | 7 |
| M · Level 2 | Medium flow | 3 months and up | 7 |
| L · Level 3 | Large flow | 6 months and up | 1 |
| LL · Level 4 | Fast flow | 9 months and up | 1 |
If the range above reads like a lot, it folds down to two questions: how old is your baby, and do you want glass or something lighter. The flow finder asks exactly those and answers with a shelf.
Two questions and we will point you to the nipple level we mark for your baby's age, plus the bottles that carry it. It takes less time than warming a feed.