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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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Before you go black: 3 things to know before you apply that black hair dye
Are you thinking about dyeing your hair black? More power to you! Just keep these three important things in mind before you start applying that striking black.
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What is a hair dye patch test? 4-step tutorial to do it with ease
Hair dye patch tests are a non-negotiable when you colour your hair at home. Here’s how to do one in four easy steps to detect allergies to your dye before you colour.
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Cool contrast: 4 top colour and haircare tips for olive-skinned women with blonde hair
For women with olive skin, striking blonde hair is a show-stopping look. Here’s how to achieve the perfect shade and protect your strands.
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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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What is an oil-based hair dye and what are its benefits when dyeing hair blonde?
What is an oil-based hair dye and why should you use one if you’ve got dark hair but want to dye your hair blonde? Here are 4 benefits of plant-powered hair dye!
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Permanent hair dye: how long does it last, and how can you help it last longer?
Wondering how long your permanent hair dye can go without touch-ups? This helpful guide gives you advice on how to maximise your dye job, and when a touch-up is in order.
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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 slow down red hair fading? 5 tips to keep your colour vibrant for longer
Reduce red hair fading with these top 5 tips that take you from selecting the right dye, through to the right shampoo, conditioner and hair care routine.
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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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Left over product: can I keep it for next time?
No, you cannot keep a mixture for a future application.
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5 simple tips for a nice and easy hair colour session at home without the fuss!
If you’re concerned that colouring your own hair might be a hassle, think again! Discover our 5 tips to ensure that your next colour session at home runs smoothly.
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