Beautifier is a free Photoshop plugin that was released by Red Paw Media. Red Paw media is the creator of two more free plugins the Hot Pixel and the BleachBypass. What this filter does, is that it creates a High Key effect that you often see used in fashion magazines.
The user can play with four different settings
and there is also an option to simulate an Infrared black and white effect.
The filter worked quite nicely and there are also a couple of nice examples at the plugins homepage where you can check it in action.
The main drawback for some people is that it is a windows only plugin.