Semi-long hair (length from shoulder to armpit)= 1 Box Foaming hair color for gray coverage. Easy application just by massaging your hair. The super-penetrating foam smoothly penetrates to the roots and dyes hair evenly, including the back of the head and inner layers of hair! A finish with a moisturized feel—fingers run smoothly through hair. Contains moisturizing ingredient (Royal jelly extract) and hair protecting ingredients (Seaweed extract, Soft lanolate) (Quasi-drug) .