Details: This easy-to-use, no-mix gel formula comes ready to apply with its built-in applicator brush. Each application of the reusable formula blends grays for up to 10 washes. It's damage-free, ammonia-free, and peroxide-free hair color. Apply to your temples, roots, and hairline to extend the life of your color in 10 minutes. Simply apply, rinse with water only and dry!