Is there a way to retouch skin in my videos using Movie Magix? Is there a software that can be used as a plug in with movie magix that I can retouch skin with?
Can you give us more details of what you need to do - this process can vary for simple adjustment to a very complex and difficult process depending on what is required.
There is a plugin made by New Blue Effects called "Video essentials IV for Magix" that came with MEP2013 Premium as an additional program. This has an effect called "Skin Touch Up" that operates by creating an motion Alpha mask based on the tone of the skin area you wish to smooth. This is selected from the preview monitor using an eyedropper tool and then you can control the sensitivity and smoothing whilst observing the realtime result or just the mask area itself. The effect is GPU accelerated for smooth realtime preview in the effect window, is simple to apply and control, and includes several preset options. It is reasonably effective but of course only applies an overall smoothing, which can look unatural if overdone, and is not as specific as using the clone tool to retouch blemishes as in Photoshop.
It should be available to buy as a plugin from New Blue FX.