HELP I am trying to make the hair color filter meld into correct shape with face stretch how?

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Help I am trying to make the hair color filter meld into the correct shape with the face stretch I add to the filter but its not and its overlapping into the face when I make the face stretch wider. I have tried to make the scale of it wider by x but then it goes past the outer edge of the hair and looks fuzzy please help I beg of you!