Aggie
Well-Known Member
exactly that's perfectly fine, you can use it right away. But you shouldn't worry if you do let it sit 15-20 mins. It will still work fine. It should because the indigo is still coloring your hair when it's on your hair (leaving it on there for about 2-3 hrs), and if it didn't work then there would be no color.
I just need my hubby's beard the other night and I let both henna and indigo sit out for a bit. Henna about 30 mins, and the indigo about 15 mins, and then combined it and he used it. His hair looks perfect!
The bolded is what I do when I apply indigo. I leave it on my hair for 2 hours=superb dye uptake.