Can I mix 20 volume developer with Purple Shampoo?

Can i mix 20 volume developer with purple shampoo

Colorless shampoo removes dirt and product buildup from the scalp and treatments that repair damaged or over-processed locks. Some may use purple shampoo. Can I mix 20 volume developers with purple shampoo? Before mixing, we should understand their ingredients and how they work. So let’s know the details.