Wella Koleston Intense Hair Color 305/4 Chestnut offers rich, vibrant color with full grey coverage. Infused with argan oil, it nourishes and moisturizes hair, providing long-lasting shine and softness. Features Fights hair dryness Now with argan oil 100% grey coverage 8 weeks of color intensity Moisturizing treatment with floral scent Moisturizing treatment with argan oil.Wella: Innovators in hair care and color solutions, known for professional-grade products.Mix the dye ingredients carefully according to the package instructions. Apply to dry hair, leave for 30-40 minutes, then rinse thoroughly.It is recommended to perform a patch test on a small area of skin 48 hours before use to avoid any allergic reaction.