Wella Color Charm 4A Medium Ash Brown delivers beautiful, natural-looking ash brown color with superior gray coverage and long-lasting results. This professional liquid formula provides rich, cool-toned brown color that neutralizes unwanted warm or brassy tones. The 237 shade is for those seeking a sophisticated medium brown with subtle ash undertones. Wella's Color Charm line is by professionals worldwide for its consistent, reliable results and excellent color retention. The liquid consistency ensures easy mixing and smooth application, while the conditioning agents help protect hair during the coloring process. Each 1.4 oz bottle provides enough product for shoulder-length hair when mixed with appropriate developer. The permanent formula penetrates deep into the hair cuticle for color that won't wash out, lasting 6-8 weeks with proper care. I for covering gray hair or refreshing faded color, this ash brown shade complements cool skin tones beautifully and provides natural-looking dimension.

Combine equal parts Color Charm liquid with 20-volume developer in non-metallic bowl. Apply mixture to dry, unwashed hair from roots to ends using tint brush. Allow to process for 30 minutes, checking color development every 10 minutes. Rinse thoroughly and shampoo gently.

Water, Cetearyl Alcohol, Ammonium Hydroxide, Ceteareth-20, Oleic Acid, Sodium Sulfite, PEG-2 Oleamine, Erythorbic Acid, Tetrasodium EDTA, Fragrance, p-Methylaminophenol Sulfate, Hydrochloric Acid.