Why you should trust this review
I am a Registered Nurse and International Board Certified Lactation Consultant (IBCLC). I work with families on infant feeding every week, and Comotomo bottles come up in nearly every conversation about combining nursing with bottle feeding. Over about five months I used a retail-purchased set of Comotomo bottles across multiple families in my practice, observing how breastfed infants adapted and how parents managed pacing feeds, cleaning, and the day-to-day logistics of feeding a newborn. I purchased the unit at retail, received no payment or free product from the manufacturer, and retained full editorial control over this review.
What makes these bottles different
Most baby bottles use a polypropylene plastic body with a silicone nipple on top. Comotomo reverses the priority: the entire body is soft, squeezable silicone, and the nipple sits on a wide, rounded base that approximates the shape of a breast. The idea is that a breastfed baby can use a similar oral posture and latch at the bottle that they use at the breast, which may reduce what practitioners call bottle preference or nursing strike. In my experience, this approach works for many infants, though it is not a guarantee. Every baby is different, and some will refuse any bottle regardless of shape.
Anti-colic design and feeding pace
The bottles use dual anti-colic vents positioned at the bottom of the body. The purpose is to allow air to enter the bottle rather than passing through the nipple and into the baby’s feed. Reducing swallowed air during a feed may help with gas and fussiness, though it is worth noting that colic is a multi-factor condition and no bottle resolves it on its own. Pairing the vents with paced bottle feeding, a technique where you hold the bottle horizontal and allow the baby to control the flow, produces the best result in my practice. The HealthyChildren.org resource in the sources section has a clear description of paced feeding for parents who are new to it.
Cleaning and safe use
The single biggest practical advantage of Comotomo bottles is the wide opening. Bottle brushes reach every corner without difficulty, which matters because residual milk left in hard-to-reach corners can harbor bacteria. The CDC recommends washing all infant feeding items in hot, soapy water after each use, or running them through the dishwasher on the sanitize setting. Allow parts to air-dry on a clean rack rather than towel-drying, as cloths can transfer bacteria to a clean surface. The silicone body and nipple are rated for dishwasher, microwave, and steam sterilizer use, which simplifies the routine for parents managing multiple feeds a day. Inspect the nipple and the body for any cracking, stickiness, or discoloration before each use and replace the parts if you see any of those signs.
Where it gives ground
Two honest limitations. First, the soft silicone body is less rigid than a standard plastic bottle. During a night feed, when coordination is at its lowest, the body can compress unexpectedly and cause the liquid to flow faster than intended. Some parents find a standard silicone sleeve or simply gripping the bottle closer to the base helps. Second, the product line is narrower than rivals such as Dr. Brown’s or Philips Avent. You get around two body sizes and two nipple flow rates. If your baby needs a very specific flow rate or you prefer a large variety of accessories, a broader product line may serve you better.
Who it is for
If you are nursing and introducing a bottle for the first time, or if your baby has shown resistance to standard narrow-nipple bottles, Comotomo is a reasonable first option to try. The wide base, soft body, and dual-vent design address the most common complaints I hear from breastfeeding families. If cleaning simplicity is your top priority, the wide opening is genuinely the easiest I have researched. Check the current price and confirm the latest product details with the retailer before purchasing, as specifications and available sizes can change.