I threw the stuff that came with the nipples @firstbaby_girl the main brand I use is Avent but she drinks from any brand without a problem 😊

Oh OK @capri2015 makes complete sense ! I will use it only when I mix formula with cereal . Thanks 😘

Maybe the texture of the nipples is different. Have you read all the differences between them

like if u added cereal to it

the pink is for thicker formula