L'Oreal Paris Dia Colour Demi Permanent Gloss Colour - 5.1

L'Oreal Paris Dia Colour Demi Permanent Gloss Colour provides a luminous, high-shine finish to you...

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eBayLoreal Professionnel - Dia Color Demi Permanent Gloss Hair Colour Ash Series 60m
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Product Information

Full details

The L'Oreal Paris Dia Colour Demi Permanent Gloss Colour in shade 5.1 is designed for adults looking to enhance their natural hair tone with a professional-grade, high-shine finish. Its primary benefit is providing rich, luminous color without the use of ammonia, leaving hair feeling soft and revitalized; however, users should note that as a demi-permanent product, it will gradually fade over time and is not intended for drastic permanent lightening.

All features

Age Groupadult
GenderUnisex
Model Part Number5.1
BrandL'Oreal Paris

Extended Product Information

FAQs

Is this product ammonia-free?

Yes, the L'Oreal Paris Dia Colour range is strictly ammonia-free.

Can this cover grey hair?

It is designed to blend grey hair, but it may not provide 100% full coverage on resistant greys.

How long does the color last?

As a demi-permanent color, it typically lasts for several weeks, depending on your hair's porosity and how often you wash it.

Does shade 5.1 have warm or cool tones?

The .1 designation in L'Oreal professional color lines typically indicates ash (cool) tones.

Can I use this after a permanent perm or bleach?

It is recommended to wait at least two weeks after a chemical service before applying this gloss to ensure hair integrity.

Do I need to buy a developer separately?

Yes, this product requires a professional developer to activate the color process.

Troubleshooting

Color appears uneven

Ensure the product is applied evenly throughout the hair and that you are using enough product to thoroughly saturate all strands.

Hair feels dry after coloring

Use a deep conditioning mask specifically formulated for colored hair to restore moisture balance.

Color is fading faster than expected

Use a sulfate-free shampoo and avoid washing your hair with very hot water, which can strip the color.

Pros and Cons

Pros

  • High-shine, luminous finish
  • Ammonia-free for gentle application
  • Softens and revitalizes hair texture
  • Natural-looking fade without harsh roots

Cons

  • Not suitable for permanent lightening
  • Color will gradually wash out over time
  • Requires proper mixing for professional results

Setup, Compatibility & Care

To achieve the best results with the Dia Colour system, ensure you are using the correct developer strength recommended for your hair type. Always perform a patch test 48 hours before full application to ensure there is no allergic reaction. When applying, use gloves to protect your skin and apply evenly from roots to ends. For aftercare, use color-safe shampoos and conditioners to prolong the shine and vibrancy of the treatment. Avoid heat styling immediately after coloring to allow the color pigments to settle completely.

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