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L'Oréal Professionnel Dia Color 60ml
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L’Oréal Professionnel DIA Colour – 60ml
Professional demi-permanent colour for exceptional shine, care, and versatility – exclusively for salon professionals.
What It Is
L’Oréal Professionnel DIA Colour is the next-generation acidic, ammonia-free demi-permanent hair colour from the trusted DIA family. Designed for professional use only, DIA Colour delivers high-gloss, natural-looking results with 3x more shine and a silky, healthy finish. Ideal for glossing, toning, refreshing, or blending greys, it offers a gentle yet effective solution for modern colour services.
Who It’s For
Perfect for UK hair and beauty professionals seeking a versatile, salon-exclusive demi-permanent colour that prioritises hair health, shine, and flexibility. DIA Colour is especially suited for:
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Clients with dull, sensitised, or coloured hair needing a shine boost
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Blonde or lightened hair requiring gentle toning
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Clients wanting soft grey coverage (up to 70%) without a harsh regrowth line
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Salons offering eco-conscious, ammonia-free services
Why Professionals Love It
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Melanin Gap Filler Technology refills pigment gaps, restoring radiance and vibrancy in mature or colour-treated hair.
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Acidic, ammonia-free formula protects the cuticle, leaving hair smoother, shinier, and healthier after colouring.
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Covers up to 70% greys with a seamless, natural blend – no flat tones or harsh lines.
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92% natural-origin ingredients – vegan-friendly and sustainable, aligning with modern salon values.
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Intermixable shades allow complete creative control, making it easy to customise tones for every client.
Professional Benefits
- 3x more shine than untreated hair
- Gentle, ammonia-free, acidic pH
- Up to 70% grey coverage
- Vegan formula with 92% natural-origin ingredients
- Smooth, creamy texture for easy mixing and application
Frequently Asked Questions
Is L’Oréal Professionnel DIA Colour suitable for all hair types?
Yes. It works beautifully on natural, coloured, sensitised, or lightened hair. It is especially effective for boosting shine, refreshing colour, and gently toning blondes.
Does DIA Colour contain ammonia?
No. DIA Colour is completely ammonia-free. Its acidic pH helps maintain a smooth and healthy cuticle throughout the service.
Can it cover grey hair?
Yes. DIA Colour can softly blend up to 70% grey for natural, low-commitment coverage without harsh regrowth lines.
How long do the results last?
Results typically last up to 6 weeks, depending on hair condition, shade selection, and aftercare. Fading is soft and natural.
Is DIA Colour vegan and eco-friendly?
Yes. The formula contains 92% natural-origin ingredients and is vegan-friendly, supporting more sustainable salon services.
Can shades be mixed?
Absolutely. All shades are intermixable, giving professionals full creative freedom to customise tones for every client.
Do I need a developer?
Yes. For optimal performance, mix DIA Colour with L’Oréal DIA Activateur Developer as recommended.
Is this product available for retail purchase?
No. DIA Colour is strictly for professional use in salons and is not intended for consumer self-application.
What services can it be used for?
It is ideal for glossing, toning, colour refreshing, and grey blending, delivering enhanced shine and a silky, healthy finish.
What size are the tubes?
DIA Colour comes in 60ml tubes designed for professional application.
Available in 60ml tubes – for professional salon use only.
How do I know if the Dia Color range is right for my salon?
If you’re wondering whether Dia Color is the perfect fit for your salon, explore our Professional Buyer’s Guide to L’Oréal Dia Color — designed exclusively for UK hair professionals.
Discover how Dia Color delivers rich, multidimensional tones and adaptable coverage for every client’s needs.
Explore the full L’Oréal Professionnel Colour portfolio to find the perfect solution for every hair type, tone, and colour service.
