Coloured hair radiance: our advice
Hair colouring opens the cuticle: the hair fibre becomes more porous, colour fades and shine diminishes. To maintain luminous highlights, close the cuticle, limit fading and nourish.
By the Luxéol team · Reading time: 5 min · Updated 9 July 2026
Key takeaways
- Hair colouring opens the cuticle: hair becomes more porous, colour fades and shine diminishes.
- Colour fading is accelerated by frequent washing, hot water, sun and chlorine.
- Protect with coloured-hair care products, lukewarm water and heat/UV protection.
- Nourishing and closing the cuticle = more highlights.
- Spacing out washes and choosing a gentle shampoo prolongs colour.
Why does coloured hair become dull?
Hair colouring alters the fibre: to deposit pigments, it lifts the cuticle. As a result, hair becomes more porous, retains pigments and water less effectively, and reflects less light. With every wash, some of the colour escapes and radiance diminishes.
How can you preserve colour vibrancy?
- Use care products formulated for coloured hair, which protect pigments.
- Wash with lukewarm water and finish with a cool rinse to tighten the cuticle.
- Space out washes: each shampoo fades the colour a little.
- Protect from sun and chlorine, which oxidise and dull hair.
- Limit heat and apply a heat protectant.
Steps that prolong colour
- Wait 48 hours after colouring before the first shampoo.
- Use a regular nourishing mask to coat the hair fibre.
- Occasionally use a colour-depositing treatment suited to your shade (anti-yellowing for blond hair, for example).
- Rinse hair with fresh water before going to the pool or sea so it absorbs less chlorine/salt.
The Luxéol solution
Shine routine Luxéol
A routine designed to smooth the hair fibre, revive highlights and make dull or coloured hair shine, wash after wash. Combine with gentle habits and heat protection.
Frequently asked questions
Why does my colour fade so quickly?
Can you wash your hair straight after colouring it?
Does the sun damage coloured hair?
How can you revive faded highlights?
Food supplements should be used as part of a healthy lifestyle and are not a substitute for a varied, balanced diet. This article is for information purposes only and does not constitute medical advice.
Sources
- French Society of Dermatology — hair fibre structure and colouring.
- Vidal.fr — coloured-hair care.
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