Which Philips Avent Natural Nipple do I own?

Both the previous and new Philips Avent Natural Nipples are designed to look and feel like a breast, but only the new Natural Response Nipples are also designed to work like one, releasing milk only when your baby actively drinks.The Natural Response Nipple comes in 5 sizes, and they can be recognized by the following features:•    Slit on the tip of the nipple instead of a hole;•    Swirl design around the petals;•    Grey Philips Avent logo on the bottle.To check whether you have the older or new Natural Response Nipple, please refer to the illustration below.

Philips Avent Natural Nipple Medium Flow - 6 Pack : Baby Bottle Nipples : Baby

Natural Response nipple, Flow 1.

Philips Avent Natural Response Nipple Flow 1, 2 Pack, SCY961/02

Avent - 1pk Glass Natural Baby Bottle with Natural Response Nipple, 8oz

Teats that follow the baby's natural feeding movements, releasing milk only when the little one drinks. Flow 3, from the 1st month.

Philips Avent Natural Response Baby Bottle Nipples Flow 3, 1M+, 4pk, SCY963/04

Dr. Brown's Natural Flow® Wide-Neck Baby Bottle Silicone Nipple

Philips Avent Baby Bottle Nipples

Avent's new nipple helps to make bottle feeding more natural for your baby and you. The nipple features an innovative petal design for natural latch on similar to the breast, making it easy for your baby to combine breast and bottle feeding. Avent's new nipple helps to make bottle feeding more natural for your baby and you. The nipple features an innovative petal design for natural latch on similar to the breast, making it easy for your baby to combine breast and bottle feeding.

Avent 2 Pack Natural Baby Bottle Nipple - Medium Flow

Philips Avent Natural Baby Bottle With Natural Response Nipple, 4 Oz. (4-Count)

Philips AVENT Natural Response Baby Bottle Nipples Flow 1, 4pk, SCY961/04 : Baby

Philips Avent Natural Fast Flow Nipple is designed for babies at least 6 months old and offer a fast flow. These nipples are made of soft, durable silicone, which is odorless, flavorless and BPA free. The nipples can be sterilized in any Philips Avent steam sterilizer, boiled for five minutes, or washed in the dishwasher. A wide breast-shape nipple promotes natural latch-on so you can easily combine breastfeeding and bottle feeding.

Avent Natural Baby Bottle Nipple, Fast Flow - 2 pack

Philips Avent 4pk Anti-colic Baby Bottle Nipple - Flow 4 : Target

mimics the mother's breast for a natural latch-on and comfortable feeds.

Philips Avent Natural Response Baby Bottle Nipple Thick Feed 6m+ x2