Just For Men original formula real black H 55 black hair dye

Just for men now contains extra conditioners for thicker, healthier looking hair. One application lasts up to 6 weeks. It won't wash out, no matter how often you shampoo. Lasts until the grey grows back. Allergies to products can develop, even though you had no reaction during previous usage. For this reason, it is important to take this allergy test 48 hours ahead of every use. Wash test area with mild soap and water, wash an area about the size of a ten pence piece inside your arm at your elbow. Pat dry. Use a cotton swab or tissue to apply a small amount of product from the bottle labelled colour base to test area. Do not wash test area wait 48 hours unless you see reddening, or feel burning or other irritation.