Is it safe to use Henna if you frequently use Bigen?

[chocolatesis]

I use Bigen about every 5-6 wks to touch up my greys. Since I've started using Bigen I haven't used Henna, but I would like to. Has anyone been using both?

 

[chenai]

I used Bigen once, about 2 years ago. I remember the instructions warning against henna over hair coloured by bigen. If you still have the packaging check to see.

 

[chocolatesis]

Thanks. I'll check the box.