Have you ever had the problem of your doll baby getting too shiney as you add more paint?  Or maybe you cooked her a little too long and the shine came up that way.  Some types of vinyl are more prone to becoming shiny than others are.  Secrist vinyl resists the shine but if you need to tone down the shine then Heat-Set Matte Varnish is what you need.  The Genesis company makes this wonderful product so you know it works well.  Accidents do happen and dolls can get too shiney so it's good to have this on hand for such occasions.