Philips Avent Natural Newborn Nipple for Avent Natural Bottles, 0 Month+, 2-Pack, BPA-Free

I have only been using these nipples for about a month as my baby is almost 5 weeks old and they are leaking horribly sound the the top of the bottle ring where it meets the nipple. Some are leaking worse than others, but I have around 20 of these bottles and am becoming extremely frustrated coming to the realization that I may need to replace these bottles. It's a shame too because my baby really likes using these bottles, but the mess of the leaking is becoming too much. I would love suggestions at resolving the leaking problem before attempting to find new bottles.

Love these nipples! My baby is primarily breast-fed but bottle-fed while I'm at work. He's 5 months old and still uses these newborn nipples with absolutely no issues.

They are perfect

My daughter had trouble breastfeeding so we took her to several lactation consultants. They tried to bottle feed her but she couldn't do that either, just kept gagging. Eventually my husband was feeding her with a syringe. Then we tried these nipples (a shower gift). With a little patience she learned to drink from the bottle without gagging and has finally regained her birth weight.

I have not had a chance to use these yet but I know I would definitely recommend because these avent nipples and bottles are very good quality and so easy to clean!