SOURCE: https://forums.autodesk.com/t5/3ds-max-shading-lighting-and/physical-material-what-is-scatter-color/td-p/9621083 "Scatter color is the color of the internal SSS matter seen through the depth, a tint, so you can bias whatever kind of general surface color and such you got going. You can hit up the documentation and see examples. Just treat it as a bias on internal scatter color, provided you have depth enough as those are bound together. I would resolve to Arnold Standard Material and the Randomwalk 2 mode, it is superior in quality and detail, not so much if you use 3rd party engines"