Dr. Talbot's Pink Anti-Colic 8oz Bottle

These have been in storage for an extended period of time before being shipped out to customers. There is yellowing around the entire rim that is impossible to wash out or remove using various methods that I have tried. Yes, it is expected for this to yellow over time considering the material it is made of, but it shouldn't be yellowed when it is brand new. I would definitely not buy this agian.