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Hair Colour
Ammonia-free and PPD-free colour is meaningfully kinder to the scalp, particularly for anyone who has reacted to conventional dye before.
What to know before you choose
- Patch test 48 hours before, every time — dye allergy can develop suddenly after years of use.
- PPD is the usual culprit in colour reactions. PPD-free options exist and are worth it if you have reacted.
- Never colour broken, sunburnt or irritated scalp.