Before we touch any colour, we always do two vital checks: a **patch test** and a **strand test**. A patch test rules out allergic reactions (we usually recommend doing it 48 hours before your appointment). A strand test, where we colour a small section of hair, shows how much lift you’ll get, reveals underlying pigments and porosity, and helps us choose the right formula, developer strength and processing time. If a DIY dye has gone wrong, colour correction isn’t a quick fix, it’s a careful pla
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