Photoshop Tutorial: advanced photo editing skin retouching in photoshop

Tutorial:

I am using frequency separation method to make smooth skin. You can check detail tutorial link at: https://youtu.be/mtR_agSW2Zw

Take two copies of original layer 'Blur' and 'Detail'
Turn off 'detail' layer
Go > filter >blur > Guassian blur: Select radius around '5'px
Turn on 'Detail' layer
Go>image>apply image, apply following settings:
Change blend mode to 'Linear light'
Select 'blur' layer and choose smudge tool
Select both 'blur' & 'Detail' layers and press (ctrl/cmd + E)
Add (black) solid color adjustment layer
Change blend mode to ‘ soft light’
select brush tool with 100% opacity, 100% flow
Select layer mask and make sure foreground color is black, Use it on face
Add 'color balance' adjustment layer
Under 'midtones' add red & yellow(22,-22)
Add 'exposure' adjustment layer, Add exposure to 0.50, select layer mask and press (ctrl/cmnd + i)
Use brush tool and make sure foreground color is white and apply on highlights
add curves adjustment layer for glow, Drag up from center
Open blending options, Move below slider to left and press Alt/opt key to cut it half, Press ctrl/cmd +I on layer mask
Use brush tool with white foreground color and apply on highlights, reduce opacity as needed
Again add curves adjustment layer and drag down, Open blending options and move below slider to left side
press ctrl/cmd +I on layer mask and use white foreground color and apply on shadows(darker area) and reduce opacity