Answer:
Some of the most common and dangerous ingredients used in hair dyes are;
ammonia,
peroxide,
p-phenylenediamine,
diaminobenzene,
toluene-2,5-diamine,
resorcinol etc.
Step-by-step explanation:
ammonia, peroxide, phenylenediamine, diaminobenzene,toluene diamine, resorcinol and more but i forgot, sorry!
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