Here's the material settings for the hair, which is doing a lot of the heavy lifting here. I think if you fiddle with the Specular_Value, as well as the colours, you'll get something you like.

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Hardware: AMD Ryzen 9 3900X/MSI MAG570 Tomahawk X570/Zotac Geforce GTX 1650 Super 4GB/32GB OLOy RAM

Software: Windows 10 Professional/Poser Pro 11/Photoshop/Postworkshop 3