Bigen Powder Permanent Hair Color is ideal for those looking for long-lasting, excellent grey hair coverage or to enhance their natural hair color. A proven formula for over 30 years that guarantees effective results, the unique powder formula is activated by water and deposits rich, natural-looking color into even the most stubborn gray hair. With no ammonia required, this deposit-only color is the gentle choice for rich color and optimum shine regardless of your natural hair color, consistency, condition, length, or style Designed to gently deposit color that lasts Bigen Permanent Powder is a deposit-only hair color that does not require lifting (lightening) action to darken hair. While some ordinary permanent hair colors unnecessarily utilize both actions, Bigen's simple coloring system means less damage to your hair. Bigen Permanent Powder Hair Color leaves your hair looking smooth, natural-looking, and shiny.FeaturesExcellent Grey Hair Coverage.Enhance Natural Hair Color.Just Add Water.No Ammonia.No Harsh Odor.