ANSWER:

My understanding of kohl or eyeliner is that once you wash your face, you usually close your eyes and the area is covered by your eyelid. Therefore, it doesn’t matter whether it is waterproof or not, and Allah knows best. 

I put kohl and eyeliner in my eye then removed it before making wudu.bt a trace of color/particles was left underneath my eye.Later when i again tried wiping it some color appeared on the tissue.was my wudu valid? Esp as it is the mordern day cosmetic kohls that had waterproof written on it, & i removed all trace with a bit difficulty.