Q&A on How to Use
Is it okay to use shampoo, conditioner, or treatments on the same day as I use a hair dyeing product?
No, it is better not to use shampoo or conditioner on the same day as you dye your hair. We recommend you wash and condition your hair the day before, and use no hair grooming products before using hair dyeing products.
If you must shampoo on the same day as you dye your hair, wash carefully to avoid damaging your scalp, and dry your hair thoroughly (wet hair may cause dye to run into your eyes and may cause a weaker dyeing effect on your hair).