Product Description "TenStar Color Treatment 250g" is a hair dye that also treats your hair. With a micro-color coat formula, it allows for easy coloring, and a moisturizing coating film helps to prevent fading and color loss, maintaining beautiful hair color. Enriched with original henna leaf extract (treatment ingredient), it gives hair body and elasticity, making gray hair less noticeable with just a few uses. This product is a rinse-out type. It is fragrance-free, silicone-free, mineral oil-free, paraben-free, alcohol-free, and free of diamine compounds and oxidizing agents. Contact Information Sanpo Co., Ltd. Customer Support: 03-3987-1737 How to Use 1. After shampooing, thoroughly towel-dry your hair and remove excess moisture, then apply it evenly to the entire hair, focusing on the gray areas, using a comb or your hands. (If you haven't used styling products, you can also use it on dry hair before shampooing.) 2. Leave it on for about 5 minutes, then rinse thoroughly. ● If color remains on your hands, it can be washed off with soap, but it may be harder to remove from under the nails, so we recommend using a comb.