
Especially designed to help relieve infant colic and gastroesophageal reflux.
Infant colic affects 3-28% of infants in Northern Europe and the UK.1 Researchers found that excessive intestinal gas could play a role. When babies drink from our new Natural Response bottle with AirFree Vent, they enjoy a teat full of milk, not air. Even when sitting more upright.
Our Natural Response bottle with AirFree Vent works to decrease the amount of air baby ingests by releasing the pressure that builds up in baby's mouth while drinking. This reduces the amount of air baby ingests and can help ease colic, spit up, gas and reflux – for a calm, issue- free feed.


Unlike conventional free-flow teats, our Natural Response teat is designed to work more like a breast. Natural Response adaptive technology allows babies to stop and pause – so they can enjoy a comfortable feed and follow their own natural suck- swallow- breathe rhythm.
Gastroesophageal reflux affects 40-60% of infants2. Our Natural Response teat allows for a secure latch, which reduces baby's air intake. And the AirFree Vent design keeps the teat full of milk (not air) even with the bottle horizontal, so baby can drink sitting more upright.


How does it work?
When babies drink from the breast, they have their own suck-swallow-breathe pattern. Our new Natural Response bottle and teat respects this natural way of drinking.
Inspired by mothers and babies, supported by you
AirFree Vent
The Natural Response bottle's AirFree Vent is designed to reduce colic and discomfort by sending air away from baby's tummy.


Air release
Because the AirFree Vent keeps the teat full of milk, the Natural Response bottle can be held horizontally, and baby can sit more upright while feeding.
Natural Response teat
Our new Natural Response teat works with AirFree Vent technology to support active drinking while locking milk in and keeping air out.

AirFree vent. 260 ml (9 oz) Baby Bottle. Medium Teat.
5.0
of 5
11
Reviews
100%
recommend this product
Amisha
20/09/2026
India
The AirFree vent makes a massive difference for gas and colic. Keeping the nipple full of milk instead of air means way less burping and fussiness after feeds
This review was made for Natural Response SCY673/01 Baby Bottle with Airfree vent
Date of Use 2026-09-10
This review was made for Natural Response SCY673/01 Baby Bottle with Airfree vent
Date of Use 2026-09-10
Sujika
17/09/2026
India
The nipple design of this bottle is brilliant because milk only flows when the baby actively drinks, which completely stopped the coughing and choking we experienced with faster-flowing bottles.
This review was made for Natural Response SCY673/01 Baby Bottle with Airfree vent
Date of Use 2026-09-16
This review was made for Natural Response SCY673/01 Baby Bottle with Airfree vent
Date of Use 2026-09-16
Enaa
15/09/2026
India
I have been using this bottle for a few weeks its
This review was made for Natural Response SCY673/01 Baby Bottle with Airfree vent
Date of Use 2026-08-05
This review was made for Natural Response SCY673/01 Baby Bottle with Airfree vent
Date of Use 2026-08-05

Philips Avent Academy Newsletter
Zeevenhooven J, Brown PD, L'Hoir MP, de Weerth C, Benninga MA. Infant colic: mechanisms and management. Nat Rev Gastroenterol Hepatol. 2018 Aug; 15(8): 479-496.
Jung, A. (2001). Gastroesophageal reflux in infants and children. American Family Physician, 64(11), 1853-60.