Hi hersute!
I bought a stock system and a custom one...the custom one has too much red and is darker than my hair.the stock was very dense, while the custom is not matching my color, but that;s not the main problem ...the red in it is the biggest problem. my hair has naturally red tones but no so much, also has a lot of ash tone, and this piece has very few ash tones...is there any product that can be used to correct the red tones except for that back2natural ?