Chroma Key - green shimmering shoulders

[MarcMarcMarc]

I have illuminated my greenscreen and myself in front of it with several softboxes. But now, when someone with dark hair stands in front of the greenscreen, they shimmer a little green. The shoulders also shimmer a bit green.

What can I do to create a clearer separation and eliminate the shimmer?

Thanks a lot in advance!

 

[WBE]

At OBS Studio's Chroma Key filter, did you try to fiddle a bit with the Similarity, Smoothness etc?
https://obsproject.com/wiki/Filters-Guide#color-key-and-chroma-key

 

[smoggietv]

Use the same green as your green screen instead of the standard #00ff00. Usually though, when hair shimmers green, i find it's because there is not enough front/overhead light touching the subject.