HENNA PRO COLORS is very efficient, comfortable, and easy to use. The effects of a single hair coloring last up to three weeks. The henna tones hair color, and darkens and covers grey hairs and hairless spots effectively. The composition of the cosmetic has been enriched with argan and castor oils that nourish and strengthen hair and prevent hair loss. With HENNA PRO COLORS, your eyebrows will gain a clear shape and be easier to groom.You can darken the frame of your eyes in just 10 minutes. Please remember that the longer the henna stays on the eyebrows, the darker shade you will get.