This action will speed up your workflow and generally works on all photoshop versions. Copy layer is included so try to work on the copy layer. If any mistakes occur while editing, delete the copy layer and work on the original layer. So in this way, you will save time.
Benefits of Frequency Separation is Smooth Skin which allows the skin pores to be seen so that the picture does not look unnatural.
You can search for any video on youtube on how to use frequency separation.
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Link is below