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L'Oreal Dia Color

Semi Permanent Hair Colour

L’Oréal Dia Color gives professionals the confidence to enhance natural colour with beautifully luminous, multidimensional results. Perfect for clients who want subtle refinement or a low-commitment colour experience, Dia Color delivers gentle, ammonia-free coverage and exceptional shine, all while respecting the hair fibre.

Expertly formulated for natural or slightly sensitised hair, Dia Color blends grey seamlessly with a soft, natural finish. The conditioning, acidic technology helps preserve hair quality, making it an ideal choice for first-time colour clients or those who like to refresh their look without long-term commitment.

With a versatile palette of Natural, Warm and Cool reflects, Dia Color allows stylists to personalise every service — from enhancing natural depth and tone to reviving dull lengths with renewed richness and softness. Expect glossy, radiant colour that looks beautifully natural and fades true to tone.

Powered by advanced conditioning technology, Dia Color helps smooth and nourish the cuticle during development for a radiant, healthy-looking result. Hair feels softer, hydrated and effortlessly shiny after every application.

Shop CM Hair and Beauty Supplies for your favourite professional colour brands. Create stunning, salon-standard results with our full range of demi-permanent solutions at trade prices,  plus all the essentials you need for colour services, including developers, tools and accessories.

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  1. L'Oréal Professionnel Dia Color 60ml Tubes
    L'Oréal Professionnel Dia Color 60ml
    Unit Price: £9.52 Regular Price £11.90
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About L'Oreal Dia Color and FAQ's

What is L’Oréal Dia Color?

L’Oréal Dia Color is a professional demi-permanent hair colour designed to enhance natural hair with subtle depth, shine and tone, without ammonia.

Who is Dia Color best for?

Dia Color is ideal for natural or slightly sensitised hair, first-time colour clients, and those wanting soft grey blending or a low-commitment colour option.

How long does Dia Color last?

Results typically last up to 6 weeks, depending on hair condition, shade choice and aftercare.

Does Dia Color cover grey?

Yes. Dia Color can blend and soften the appearance of up to around 70% grey for a natural finish. For full coverage, Majirel is recommended.

Can Dia Color lighten hair?

No. Dia Color does not lighten natural hair. It is designed for enhancing tone, adding depth or refreshing shine.

Do I need to use a developer with Dia Color?

Yes. Dia Color must be mixed with the dedicated Dia Activateur developer to ensure optimal shine, tone and blending.

Is Dia Color damaging to hair?

No. Dia Color is formulated without ammonia and includes caring ingredients to help leave hair feeling smooth, soft and shiny.

Can Dia Color be used on highlighted or coloured hair?

Yes. Dia Color can add richness and depth to previously coloured hair and refresh faded lengths while maintaining condition.