A mixing bottle for proteins, medications, supplements, etc. that delivers a drink with no foam, completely mixed with only the swirl of the hand.
A bottle for mixing that creates no foam or bubbles when used. It is swirled instead of shaken.
Problem this idea/invention addresses:
Mixing - currently all mixing bottles for protein etc. mix like it were a can of spray paint (with an up and down motion) my mixing bottle mixes with a simple swirl of the hand. The fin inside does all the work with little effort.