Photoshop Tutorial: Smooth Skin Foundation

Before



After


Here are the steps to smooth skin / apply foundation:

Create a new layer.
Use Filter Highpass and set 9.0 (Filter, Other)
Use Filter Gaussian Blur 3.0
Invert the Image (Image, Adjustment)
Change the blending mode to Overlay.
Add layer mask fill with black.
Select skin use Magic Wand Tool and fill it with White.
(you can also use brush and paint the mask white on the skin area)

Make sure don't select hair, lip, and eyes beacause you want those area to be sharp.