| Title | Date | Excerpt |
|---|---|---|
| Demi-Permanent And Permanent Hair Colour Explained | Choosing between demi-permanent and permanent hair colour is a chemistry decision as much as a style decision. The two systems use different levels of… | |
| Choosing Developer Volume For Your Hair Goals | Developer is the quiet partner behind many colour services. It activates permanent colour, helps lightener swell the cuticle, and determines how much lift or… | |
| Hair Porosity and Smarter Colouring at Home | Hair porosity describes how easily the cuticle allows water, colour molecules and conditioning ingredients to enter and leave the hair shaft. It is shaped by… |
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