Finally i did it and it work 100% not just that u can adjust the color to any thing u want even for green and able to get back to the normal after u done make ur NPC standalone u save it and close ck then open Wrye Bash - Skyrim select ur new npc.esp and click right choose copy to esm then close wrye reopen ck and load the new npc .ESM do some changes then undo it then press ok highlight ur npc and press Ctrl F4 and press yes then save ur work I think the trick is u have to convert ur ESP to ESM and load the esm in ck and forget esp at all and with every time u make change in skin color u have to press Ctrl F4 after it , Hopefully it works for every one Note : i didn't uninstall any of mod i had like pretty eyes , cover eyes , beauty bella , Beauty Faces for females by necKros , WSBP - Windsong Skyrim Beauty Project V1