With its reinvigorating action, GrayBan gives the hair back its youthful look. Apply daily to dry hair to progressively regain color after 7-14 days. When desired results are achieved, apply twice weekly to maintain color. Studies show that 42% of natural color is regained after 14 days and 82.3% after 28 days of treatment. GrayBan doesn't make the hair greasy and won't irritate the skin. 6.8oz.