Hi I'm just wondering if there is an eco friendly alternative to vaseline that is safe to use during tattooing? Also I am doing a cover up on one of my coworkers throats and she used numbing cream but it wore off too fast and she was shaking by the time I finished the line work. I was wondering if it would be safe to use a numbing ointment? (Not the cream) while I do the shading and color to avoid wearing off ahain?