Description
How to Use
Ingredients
Warnings
Warranty
Description

Demi-permanent brown colour with a cool matte tone, ammonia-free, for colour balance and a glossy shine

The L’Oréal Pro Dia Color Demi-Permanent Colour 5.71 is a tone-on-tone, ammonia-free colour designed to work on brown bases with a cool direction and a balanced matte effect. Shade 5.71 is positioned as a brown with control over warm undertones, ideal for refining colour and maintaining a natural result with greater chromatic stability.

When applied to dry hair, the creamy texture uniformly coats the hair fibre, allowing for precise and controlled application. The colour develops progressively, revealing a brown with a cool matte tone and a visible glossy shine. The hair appears more uniform, with depth and a balanced finish from roots to ends.

The lost melanin replenishment technology acts within the hair fibre, replicating natural colour and filling chromatic irregularities. The result is continuous colour, with tones true to the shade and without artificial contrast. Suitable for neutralising unwanted warm undertones, evening out faded lengths, or revitalising dull hair.

Lasting up to 6 weeks, the colour remains stable and luminous. Coverage can reach up to 70% of grey hair, ensuring a natural and integrated result. The ammonia-free formula ensures greater comfort during the service and respect for the hair fibre.

With up to 92% naturally derived ingredients, this colour offers professional performance with a gentler approach. Suitable for colour maintenance, tone correction, and shine enhancement on brown hair.

Key Features

  • L’Oréal Professionnel Demi-Permanent Colour
  • Shade 5.71 brown with a cool matte tone
  • Ammonia-free formula
  • Up to 70% grey hair coverage
  • Up to 6 weeks' longevity
  • Up to 3 times more shine
  • Lost melanin replenishment technology
  • Neutralisation of warm undertones
  • Lifts up to 1 level and darkens up to 4 levels
  • Up to 92% naturally derived ingredients
  • Creamy texture for easy application
  • Professional 60ml size

Frequently Asked Questions

Is L’Oréal Pro Dia Color Demi-Permanent Colour 5.71 a cool shade?

Yes. Shade 5.71 has a cool direction with a matte effect, ideal for balancing warm undertones.

Does this shade help neutralise warm tones in hair?

Yes. It is suitable for softening warm undertones and creating a more controlled and natural result.

Does L’Oréal Pro Dia Color 5.71 cover grey hair?

Yes. It can cover up to 70% of grey hair, ensuring a uniform and natural finish.


The shade samples are for indication only, as they may vary depending on the computer screen used for viewing. Therefore, Pluricosmética disclaims any responsibility for any colour variations that may occur.

How to Use

You can use any Diactivateur developer with Dia colour (mixing ratio: 1 + 1.5). For best results, we recommend: Diactivateur 6 vol. for a gentle colour deposit; Diactivateur 9 vol. for a medium colour deposit; Diactivateur 15 vol. for an intense colour deposit.

Wear suitable disposable gloves. Do not use metal tools (bowl, comb...). Use only the recommended Diactivateur.
In a bowl, applicator bottle, or shaker, mix 60 ml (1 tube) of Dia Color cream and add 90 ml of the chosen Diactivateur developer. Apply to dry hair.

First application: The 20-minute development time begins at the end of the application.
Root touch-up: Apply to the root area, start the 20-minute development time, then immediately distribute through the rest of the hair to revitalise the colour for a deeper and/or darker result.
Distribute through the rest of the hair after 10 minutes if lengths and ends are moderately faded.
Emulsify for the last 5 minutes if the colour is slightly faded.
At the end of the development time, emulsify carefully for a few minutes. Rinse hair thoroughly until the water runs clear. Wash with Metal Detox shampoo.

Ingredients
AQUA / WATER / EAU • CETEARYL ALCOHOL • ETHANOLAMINE • GLYCERIN • PROPANEDIOL • BUTYROSPERMUM PARKII BUTTER / SHEA BUTTER • OLEIC ACID • OLEYL ALCOHOL • COCO-GLUCOSIDE • TOLUENE-2,5-DIAMINE • SODIUM METABISULFITE • PARFUM / FRAGRANCE • m-AMINOPHENOL • HYDROXYBENZOMORPHOLINE • ASCORBIC ACID • TETRASODIUM GLUTAMATE DIACETATE • N,N-BIS(2-HYDROXYETHYL)-p-PHENYLENEDIAMINE SULFATE • XANTHAN GUM • HYDROXYETHYL-3,4-METHYLENEDIOXYANILINE HCL • SODIUM HYALURONATE • THIOGLYCERIN • CITRIC ACID
Warnings
Hair colourants can cause severe allergic reactions.
Read and follow instructions.
Carry out a preliminary allergy test 48 hours before applying any colourant. If no irritation occurs, proceed with the application.
Read the leaflet accompanying the product carefully.
This product is not intended for use on persons under the age of 16.
For professional use only.
Wear suitable gloves. If the product comes into contact with eyes, rinse immediately and thoroughly with water.
Do not use for dyeing eyelashes or eyebrows.
Warranty
For more information about the warranty of products available on pluricosmetica.com, please refer to point 11 - "Product Warranty" on this page
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