I use a ammonia free bleach on my whole head made by chi but it is the only one on the market that doesn't have ammonia so I've done my roots the same as I've always done for years with this product and yes u will need a good conditioner and products to help ur hair out but I don't see why u would be able to do it! But most toners have very strong chemicals in them so just watch out for that when ur head is in the shampoo bowl and it's not ventilated that we'll the smell might make u sick! Make sure u tell the person doing it that ur pregnant to be clear because some salons won't do it! *I'm a hairstylest*
It depends on your hair, really. If it usually gets fried or dry during dyeing then its likely to be a problem with highlights as well, but if you're having it done in a professional setting they should be able to counter that or give you tips to help improve the condition of your hair after highlighting.
Do you know anyone that has them? Would it fry my hair or make it look unhealthy and dry
For high lights .,, activator has to b used and in bleach it acts as an lightening agent ..
No other way i think