Discontinued hair dye alternative
So i think i have finally found the right shade of igora zero amm only for it to be discontinued :) i initially used 5-1 but it had a copperish hue to it which i didnt like. I managed to buy the last tube of 5-21 and i think it's exactly what i wanted. Now i asked gemini if its possible to get the color through mixing. I was thinking of adding 0-22 neutralizer to 5-1. Gemini used a formula and said that i needed 7cm of 0-22 for one 60ml tube of 5-1 to produce 5-21. I wanted an expert opinion on this if possible because i know that AI sometimes provides wrong answers. Another thing i wanted to know was how much ammonia 0-22 would introduce to the dye because im allergic. If you could advise another ammonia-free hair dye of same price and similar shade as 5-21 thatd be great too. Thanks!