Soap getting slimmer ( lemmy.ca )
They're careful to make sure the bottle still looks the same from the front, but from the side you can see the difference.
https://lemmy.ca/pictrs/image/32d443d7-4c13-45d6-915b-dba7b555a1be.jpeg
https://lemmy.ca/pictrs/image/ddde6244-cfb6-42db-827e-1bd5fa6632f8.jpeg