The PAON Hair Color Refill in No. 4 Natural Black is a permanent hair color solution designed to provide 100% gray coverage with a natural-looking finish. This cream-type hair color is easy to apply, requiring no mixing, and delivers results in just 7–8 minutes. It includes a built-in conditioner for a soft, silky, and shiny appearance. The refill package contains 40g of color cream and 40g of oxidation cream, suitable for partial use. Key Features: 100% Gray Coverage: Effectively covers gray hair for a uniform color. Quick Application: Colors hair in 7–8 minutes without the need for mixing. Built-in Conditioner: Leaves hair soft, silky, and shiny. Economical: Suitable for partial use, reducing waste. No Strong Ammonia Smell: Provides a more pleasant coloring experience. Usage Instructions: Wear suitable gloves. Apply the color cream directly to dry hair. Leave on for 7–8 minutes. Rinse thoroughly with water.