Closer to Nature teats look the same, can I use them on Advanced Anti-Colic bottles?

No, you can’t use Closer to Nature teats on Advanced Anti-Colic bottles. Closer to Nature teats have a built-in air valve, and don’t work with our Advanced Anti Colic bottles. The valve in your Advanced Anti Colic bottles is situated inside the bottle, attached to the end of the venting tube and is shaped like a star. It’s important that you make sure you match the right teat to the right bottle.