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Is it possible to darken my hair color after going light?
This would depend on the shade you desire for your hair
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Recommended time to leave the colour on the hair: is it important?
If you decide to leave the colour on your hair more or less than the recommended time, the end result cannot be guaranteed. The performances of the product can also be impacted.
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Lathering the hair colour before rinsing: is it important?
Yes, it is important to lather the hair colouring product before rinsing it off.
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Left over product: can I keep it for next time?
No, you cannot keep a mixture for a future application.
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Hair colour: why does it change during the summer?
Like the skin, hair is exposed to the sun, and therefore UV rays, during the summer.
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What do the shade colors mean on a hair color product?
Colors range between light blonde to dark black
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Mixing different shades: is it possible?
Mixing different shades, from the same or different brands, is not recommended as this can give an incompatible result.
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Hair colourant: can I apply on hair having previously used Henna or colouring products with metal salts?
No, applying Garnier hair colorant to hair previously exposed to Henna or metal-salt hair treatment is not recommended. The hair’s structure could become brittle.
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Coloured hair: what’s the best beauty routine to keep it in great condition?
Coloured hair needs a helping hand to keep it glossy. Here are a few things you can include in your hair routine to keep it healthy, shiny and in beautiful condition.
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Worried about your hair roots? Here’s everything you need to know to hide them
Are you worried about your hair roots showing through after your last dye job? Don’t fret, just read this helpful guide for tips on the best ways to hide your roots.
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How do you choose the right Olia hair colour for you? Follow these 5 simple tips
Switching up your shade? To really nail that perfect transformation, it’s important to pick an Olia hair colour that’ll perfectly complement you – and nourish your locks.
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How to get hair dye off your face? It’s easy if you follow our 5-step tutorial
How to get hair dye off your face? 1: Gather a few items. 2: Act fast. 3: Soap and water. 4: An exfoliating scrub. 5: Oil-based cleanser and overnight moisturiser
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