The RunChair journal

Ideas from the chair.

Playbooks, guides, and field notes on running a modern salon — cutting no-shows, keeping clients, and putting AI to work without losing the human touch.

Guides5 October 20264 min read

Hair colour theory explained: the wheel, levels and underlying pigment

Why does a perfect blonde turn brassy in two weeks? A 90-second 3D explainer, plus a colorist's guide to the colour wheel, levels, underlying pigment and choosing the right toner.

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