AFTER-SALES SERVICE :With this purchase, you get hair dye shampoo, disposable shawl, disposable gloves and the best after-sales service.If the product you receive is damaged or has other problems, Please feel free to contact us , we will reply you and provide a satisfactory solution within 12 hours. ✓ EASY TO USE:No need for bowls and brushes, very easy to operate. Put on gloves, apply the shampoo evenly on the hair, wait for 15-20 minutes, it needs to stay for 20 minutes to completely cover the white hair, then rinse with clean water, you will have a natural black hair, yes, it is that simple And it's fast, you can do it at home. Plant-based hair dyes have no unpleasant smell and the color doesn't stay on the scalp. HAIR DYE SHAMPOO 3 IN 1:Unlike other traditional hair dye shampoo, our products are free from harsh chemicals like ammonia, parabens, and more. This product can not only be used as a black hair dye, but also as a shampoo and conditioner, three-in-one, no matter your hair is white hair, gray hair, light brown, etc., you can use hair darkening shampoo to make your hair change Shampoo for black. It can be done directly at home, saving precious time at the salon. NATURAL AND MILD HERBAL FORMULA :Argan oil, olive oil and turmeric are added to the hair dye, natural herbal extracts strengthen the hair fiber from the inside out, mild and non-irritating, hypoallergenic, deeply nourish the scalp, effectively repair the hair, make the hair Lustrous, soft and smooth. 100% GRAY HAIR COVERAGE:It can effectively cover gray hair, so that you will no longer be affected by gray hair, rejuvenate and regain the fresh and natural hair of youth. Black hair can last 3-4 weeks, the hair color shampoo only adheres to the surface of the hair shell, will not stain the scalp, and is safer for both hair and skin (warm reminder): please do a skin test before first use.Best Sellers Rank: See Top 100 in Beauty & Personal Care. Hair Type: all types. Item Form: Liquid. Brand: BOJICA. Package Information: Bottle. Color: Dark Brown. : B0C2CDN91Y. Manufacturer: BOJICA. Package Dimensions: 10.12 x 6.14 x 3.07 inches; 1.28 Pounds.