- GFEUGS 3-in-1 Black Dye Shampoo: dyes, cleans, and conditions hair in a single product - Quickly and effectively covers gray hair, instantly restoring natural black color - Deeply nourishes the scalp and repairs damaged hair, adding shine and softness - Convenient and economical alternative to conventional dyes, ideal for home use - Long-lasting color for up to 3-4 weeks, with visible results in 5-15 minutes - Easy to use: apply to dry hair, massage, leave on, and rinse - Safe formula that protects the hair fiber and does not damage the hair - Recommended for men and women who want to cover gray hair and rejuvenate their appearance - 500 ml format, enough for approximately 10 applications