I've used my fair share of dyes since my blue haired teenage years and I'm curious as they mention non-professional applications of dye in terms of risk. Does this mean the risk is elevated during the application phase and not the 'wearing' phase of dye use?
We observed a higher breast cancer risk associated with any straightener use and personal use of permanent dye
Assuming that the application phase leads to permanence I don't really see the difference, yet I get your point. E.g. massaging the dye into the scalp vs a pro not going to deep into the roots.
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I've used my fair share of dyes since my blue haired teenage years and I'm curious as they mention non-professional applications of dye in terms of risk. Does this mean the risk is elevated during the application phase and not the 'wearing' phase of dye use?
Assuming that the application phase leads to permanence I don't really see the difference, yet I get your point. E.g. massaging the dye into the scalp vs a pro not going to deep into the roots.