Permanent Hair Dye
Low burden — Permanent Hair Dye is a relatively low-burden choice.
Oxidative permanent hair colour applied at home or salon.
The breakdown
Each driver rated 0 (none) to 10 (worst)
Evidence strength: moderate · Detox Score = 100 − hazard×4.6 − exposure×3.4 − persistence×2.6, clamped 1–100.
What this means for you
A Detox Score of 74 places permanent hair dye in the Low band. Permanent dyes contain aromatic amines absorbed through the scalp. Spacing out applications and good ventilation reduce the dose.
Frequently asked questions
Is permanent hair dye a toxic exposure?
Permanent Hair Dye has a Detox Score of 74 out of 100 (Low burden), which means it is a relatively low-burden choice. Permanent dyes contain aromatic amines absorbed through the scalp. Spacing out applications and good ventilation reduce the dose.
What is a safer alternative to permanent hair dye?
A lower-exposure swap for permanent hair dye is: Henna, semi-permanent dyes, or less frequent application in a ventilated space. Permanent dyes contain aromatic amines absorbed through the scalp. Spacing out applications and good ventilation reduce the dose.