How Does Exposure Affect Saturation?
Exposure affects saturation. It’s as simple as that.
If you're finding the edits to be saturated or struggling with skin tone, exposure is your friend! A lower exposure will pull in more saturation and vice versa, a higher exposure will push out saturation.
This also applies when matching digital images to film scans, match sure your exposure matches. You may need to dial exposure up or down.
YouTube tutorial, Editing Skin Tone: youtube.com/watch?v=sEmCgF2wCmY