You can use the conditioner after dying it. But wait …
Comment on Should I Wash my Hair Before I Dye It? by Harley.
You can use the conditioner after dying it. But wait on shampooing for atleast 2 days
Harley Also Commented
Should I Wash my Hair Before I Dye It?
If you want better results it’s best to wait 1-2 days after washing. The oils in the shampoo/conditioner can effect the outcome of the color. Then afterwards it usually comes with a conditioner and to wait 1-2 days afterwards to wash your hair again. Hope this helps 🙂