Black. 

Light Mountain Natural Hair Color & Conditioner Color the Gray relies solely on blends of premium grade henna. No other ingredients are used. This complete hair coloring kit contains all you need: premium grade henna, detailed instructions, a pair of disposable gloves, and a henna hat to assist you in "setting" the henna during the color treatment stage. Black. Light Mountain products contain no peroxide, ammonia or other additives. No chemicals. Cruelty Free. 100% pure botanical hair color. Includes caps & gloves.

Suggested Use: Read and follow enclosed instructions exactly to insure proper results. Always strand test for color prior to full application.