Hands down the best bottles for gassy babies! Dr Brown's Original Bottle is designed with a patented 2-piece internal vent system, which is the secret behind its gas and colic fighting ability. 

How it works is that the vent system eliminates negative pressure and air bubbles in the formula or milk, which in turn reduce colic, spit up, burping and gas. As air never mixes with the milk, not only does it eliminate air bubbles (and in turn, no gas), it also prevents oxidation thereby maintaining essential vitamins such as C, A and E of your milk.

What we also love is that this system creates positive pressure flow for vacuum-free feeding, which is a similar experience to that of breastfeeding. You see, the mother's breast is never in vacuum, hence there is no need for pressure to be released. Dr Brown's bottles mimic this by having air channeled from the nipple collar through the vent system to the back of the bottle so that your baby can feed at his own pace. Milk is also able to flow freely without nipple collapse.

Dr Brown's bottles are all completely free of BPA, PVC, lead and phthalate so you can have peace of mind. If there is one thing to fault this product, it is that there are more parts to wash (because of its vent system) but this is not that big a problem, given that it is dishwasher-safe. Being the solution to your gassy baby, we think this extra 'chore' is more than worth it. 

If you have tried everything but still can't seem to solve your baby's colic or reflux problem, we strongly recommend you to switch your baby bottles to this of Dr Brown's, the best anti colic bottles!

The Philips Avent Anti-Colic Baby Bottles comes close in second in terms of being the best bottles for colic. In fact, we think it is the best bottles for gassy newborns.

Unlike Dr Brown's where it utilises a separate vent system, Philips Avent integrates an anti-colic valve into its nipple (which they name as "Airflex venting system") to reduce air ingestion. This valve will flex when your baby feeds to allow air flows into the bottle so that vacuum can be prevented from building up. It then vents the air to the back of the bottle so that they stay away from your baby's tummy which in turn, reduces gas, spit up and burping.

While the Philips Avent Anti-Colic bottles are suitable for babies suffering from gas or colic, we think it is especially deserving as the best slow flow bottles for newborns. This is because its slow-flow nipples are made from extra soft silicone to suit infants older than one month. These nipples let your baby control the milk flow by working with your baby's natural feeding rhythm, so that your baby will not drink too much (which causes indigestion) or too little (rapid sucking causes the sucking in of air) at a time.

Another thing that we love about these bottles is that they are compatible with most Philips Avent's products from breastfeeding to toddler cup, including this steriliser (read our review here) which is a perfect fit.  

Having gone through clinical study which proves 60% lesser of colic experience in babies compare to the normal bottles, you can be well assured that this is one best bottles for colic babies that work!

It is safe to say that the Comotomo Baby Bottles are the game changer in the bottle area. 

First off, you will notice that it doesn't quite look like a baby bottle as that you have in mind, but let us assure you, this is one well-functioning baby bottle that feeds and eliminates all gas from your baby!

There are a lot to love of the Comotomo, but the biggest feature that we cannot stop raving about is its nipples which has dual anti-colic vents which works to make sure air is circulated properly in the bottle to reduce unwanted colic, gas and spit up. To put it simply, when air goes in, milk will come out. Further, their nipples are one of the most naturally shaped and softest that will help your baby transition from the breast to the bottle. 

Another obvious distinction of the Comotomo is definitely its design. Unlike most other bottles, the Comotomo is made from soft, skin-like silicone material that are squeezy and offers babies a better grip. And the neck opening? This is perhaps the biggest opening you can find in the market which you can easily clean by hand without the need of using brushes. Lets admit it, it is quite annoying having to use a brush to clean the bottom of those narrow neck bottles each time, isn't it?

Most importantly, and a one-up of the Philips Avent is that the Comotomo slow flow nipple has only one hole, which is what you should look for for your newborn. We really are not kidding when we say these are one of the best baby bottles for gas!

If you are alternating between breastfeeding and bottle-feeding, be it because of your schedule or your baby is going through the transitioning period, the MAM Anti-Colic Bottle is the best bottles for colic and gas.

This is because MAM has a unique flat-shaped nipple that best resembles the breast nipple which fits perfectly in baby's mouth, giving them a breastfeeding-like experience without any confusion. And did we mention how soft it feels? The ergonomically shaped bottle makes it easy for both parents and babies to hold. 

How MAM Anti- Colic Bottles achieve colic, gas and reflux prevention is through its patented vented the base. It regulates the pressure inside the bottle so as to prevent the forming of bubbles and foam, thus ensuring none get into your baby's tummy when feeding. When 80% of mothers report less colic on their babies after using the MAM bottles, you know this can't go wrong. 

Having a vented base as such also means extra cleaning effort, luckily, the thoughtful designers behind this design has made it easy with a unique self-sterilising feature that requires only water and a few minutes in the microwave to safely disinfect. Or, you can always check out these sterilisers which we guarantee will make your cleaning and sterilising a breeze!

One down side is that the MAM only comes with medium-flow nipples so you will have to purchase the slow-flows separately if your baby is still at the newborn stage. Nonetheless, for what it's worth, the MAM Anti-Colic Bottle is surely one of the best baby bottles for colic that works!

The Playtex Baby Ventaire Anti Colic Baby Bottle is one of the best value for money bottles for acid reflux in the market. 

The first thing you will notice with these bottles is their angled shape. This is meant to serve as a support for semi-upright feeding position that experts have recommended to be a more comfortable bottle feed for babies, as well as to prevent ear infection. 

Unlike the bottles reviewed above, Playtex keeps air at the back of the bottle through the tiny micro-channel vents at the bottom of the bottles. No air gets to mix with the milk which means air ingestion is prevented, thus reducing gas, colic and spit-ups. 

Cleaning wise, the Playtex is a dream as not only the top cap, but the bottom of the bottles opens up for an easy cleanup. If you are hunting for the best bottles to reduce gas that are also very cheap, look no further!