Dia color.

Demi permanent gloss color with 3x shinier hair1, 6 weeks of gloss color2 and optimal grey coverage.

Know the science behind Dia color.

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Dia color demi-permanent color with no ammonia.

Available in 23 shades, mixable and customizable for personalized color results.

    • - 6 weeks of gloss color1.
    • - 3x more shine2.
    • - Optimal grey coverage.
    • - 100% true-to-tone-color.
    • - Up to 92% natural-origin ingredients.3
L'Oréal Professionnel Dia color

The tech.

The end of dull hair is here.
[Melanin Gap Filler Technology]

Fills gaps from lost melanin and reinjects color inside the fiber.
Up to 92% natural origin1.
No ammonia. - Gives 6 weeks of gloss color2 with optimal grey coverage.

The science.

Up to 92% natural origin ingredients provide nourishment and 6 weeks of gloss color* with 3x more shine.**

Melanin molecules in hair provide color, vibrancy, and shine: Melanin degrades as we age, causing dullness and grey hair. Dia color revives vibrant visible reflects and provides nourishing shine that lasts.


Dia color for the future.

- 36% less packaging¹.
- 27 fewer tons of paper¹.
- 100% recycled + recyclable packaging.
- 95% post recycled aluminum tube¹.

Co-developed with pros.

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My Hair [iD] Pro color consultation.

My Hair [iD] is a personalized color consultation tool featuring both iNOA & Dia color.

Unique inspirations, virtual try-on, professional diagnosis and product recommendation combined in an all-in-one experience.

All you need to know about Dia color.

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Dia color tips from pro to pro.

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Use the hashtags:



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Let’s see it from you!

Post your hair looks and insights with #Diacolor & #GetGlossing on Instagram

How to take the perfect picture?
Try a clean background, good lighting and close-up on hair.

Don’t hesitate to hold it slightly to valorize the result and to make the professional difference stand out! Use the hashtag #Diacolor & #GetGlossing for a chance to get featured on @lorealpro.