How to pull a certain color out of a shot in FCPX?

[thedigitalcurrent]

Hey everyone, I shot some vlog l on my GH5 and when I apply the Panasonic LUT to convert it to rec709, there is a bit too much magenta / pinkish hue on the skin tones. Does anyone know how to pull put the pink or change that singular color in the curves?

 

[vertigoanton]

If you haven't seen this already, maybe this will help - https://youtu.be/RKNehRMZmfY