Herbatint Hair Color — 4N Chestnut

Herbatint 4N Chestnut is an ammonia-free permanent hair color in the N, or Natural, series. The manufacturer describes this shade as a warm, natural medium brown with soft chestnut tones, offering a natural-looking color result and gray coverage.

Medium brown with soft chestnut warmth

Compare 4N Chestnut with 3N Dark Chestnut and 5N Light Chestnut when choosing among Herbatint's brown shades. The number identifies tone depth and N identifies the Natural shade family. Use the complete code and name, not just the word chestnut, to select your color.

Identify your natural shade at the roots rather than relying on previously colored lengths. Herbatint recommends a color strand test on hair that includes the colors you want to cover so you can preview the result before a full application.

Natural-series gray coverage

Herbatint identifies Natural-series shades 1N through 8N as its full gray-coverage range, including 4N Chestnut. Follow the manufacturer's shade-selection and processing guidance for your starting color and proportion of gray hair.

This is permanent coloring gel, not a shampoo-out concealer. If you want temporary coverage between coloring sessions, compare the Dark Chestnut Root Touch-Up Kit, which uses a different application method and requires no developer.

Preparing and applying the coloring gel

Mix equal parts color and developer in a plastic or glass container, never metal. Mix with a brush until the preparation has a gel-like consistency, then apply to dry, unwashed hair starting at the roots. Herbatint's standard processing time is 40 minutes; follow your package's instructions for quantities, regrowth application, rinsing and conditioning, including any guidance for previously treated hair.

Wear gloves as directed and protect clothing before mixing. Only unmixed color and developer can be stored for another application according to the manufacturer's instructions; do not save an already prepared mixture.

Sensitivity testing and shade-selection precautions

Perform Herbatint's sensitivity test 48 hours before every application, even if you have used hair color before. A color strand test previews the finished shade but does not replace the skin sensitivity test. Ammonia-free does not mean allergy-free, and testing cannot guarantee that a future allergic reaction will not occur.

Previously colored or porous hair can respond differently from untreated regrowth. Read the current ingredient list, all package warnings and the directions relevant to your hair before use. Browse the Herbatint collection to compare other shades and coloring accessories.