?Lasts for 30 Days?The active botanicals of shampoo can effectively prolong hair color for 6-8 weeks and keep it bright and bright after dyeing. Warm Note: Black, Dark Brown, Dark Coffee and Dark Wine Red color shampoo are designed for gray hair coverage, other color is for transforming color shade only. ?Value for Money?Touch up your hair quickly and easily with our Onilyua Hair Dye Shampoo - no need for frequent salon visits or expensive dye jobs, it suits for all hair types of men and women, available for around 10-15 times. ?Easy Use at Home?No need to mix in advance and hassle-free to dye hair at home. Just put on the provided plastic gloves, apply the shampoo on your DRY hair, massage for 15-45 minutes, and rinse well. 48HR skin test is essential before first use. Blonde brown is NOT for gray coverage. ?Gentle Formula?100% vegan and cruelty-free, gently clean your scalp and dye hair color, reduce dandruff. The natural hair dye shampoo is formulated with pure plant extract as argan oil, does not stick to the scalp, or causes unsightly confusion. ?3 in 1 Hair Dye Shampoo?Naturally colors hair while hair cleanse, the Onilyua argan oil hair dye shampoo is not only work as hair dye, but also work as hair shampoo and hair conditioner. Taking care of scalp health, safely dye hair without irritation.