DeBreath Native from Waves is a plug-in that can rescue the otherwise perfect vocal take that is marred by too much heavy breathing. That can be especially obvious when close-mic'ing a singer.
The plug-in utilizes a unique algorithm that automatically detects and separates a vocal take into two distinct components-only voice and only breath. At which point it is a simple matter of lowering the unwanted intrusions.
For situations where breath removal might sound artificial, a control allows for adding room tone to cover up the reduction or removal.