Question:
May I have my eyelashes dyed today if it is also my mikvah day?
Answer:
A woman should not tint or dye her hair on the day of the mikva. There is discussion among the poskim if she should try to wash the dye out of her haor so that it shouldn’t be a chatzitza (if it started coming off), therefore she should not add dye to her hair before toveling. Additionally on the day of the mikva she is careful not to come in contact with items that can leave remnants on her body and make a chatzitza.
Best wishes
