Godefroy 28 Day Mascara is a non-toxic formula that contains no coal tar derivatives or hydrogen peroxide. This fast acting, gentle formula does not damage the lashes and delivers rich, long lasting color for up to 4 weeks. Top selling formula in Europe and USA to tint eyelashes. Colors the eyelashes from root to tip. Can use mascara over it for lengthening and thickening benefits. Great for active women and women who are allergic to mascara.