Description
How to Use
Ingredients
Warnings
Warranty
Description

Demi-permanent hair colour light blonde with golden copper reflect ammonia-free for gloss shine and luminous colour

The L’Oréal Pro Dia Color Demi-permanent Hair Colour 8.34 is an ammonia-free, tone-on-tone colour, designed to work on light blonde bases with a warm and luminous direction. The shade 8.34 is positioned as a light blonde with a golden copper reflect, ideal for warming the colour, intensifying luminosity and creating a more vibrant finish while maintaining naturalness.

When applied to dry hair, the creamy texture uniformly coats the hair fibre, allowing for precise and controlled distribution. The colour develops progressively, revealing a light blonde with a warm reflect and visible gloss shine. Hair appears more luminous, with depth and a refined 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 reflects true to the shade and no artificial effect. Indicated for revitalising dull hair, enriching warm reflects or evening out faded lengths.

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 provides greater comfort during the service and respect for the hair fibre.

With up to 92% naturally-derived ingredients, this hair colour offers professional performance with a gentler approach. Suitable for colour maintenance, enriching reflects and boosting shine on light blonde hair.

Key Features

  • L’Oréal Professionnel Demi-permanent Hair Colour
  • Shade 8.34 light blonde with golden copper reflect
  • Ammonia-free formula
  • Up to 70% grey hair coverage
  • Lasts up to 6 weeks
  • Up to 3 times more shine
  • Lost melanin replenishment technology
  • Luminous warm reflects
  • Lightens up to 1 tone and darkens up to 4 tones
  • Up to 92% naturally-derived ingredients
  • Creamy texture, easy to apply
  • Professional format 60ml

Frequently Asked Questions

Is L’Oréal Pro Dia Color Demi-permanent Hair Colour 8.34 a warm shade?

Yes. Shade 8.34 has a warm direction with a golden copper reflect.

Is this shade suitable for adding more luminosity to hair?

Yes. It is ideal for enriching colour and increasing luminosity on light blonde bases.

Does L’Oréal Pro Dia Color 8.34 cover grey hair?

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


The shade samples are merely indicative, as they may vary depending on the computer screen used for viewing. Therefore, Pluricosmética declines any responsibility for any colour variations that may arise.

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 soft 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 non-metallic 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 min, if lengths and ends are moderately faded.
Emulsify during the last 5 min, if the colour is slightly faded.
At the end of the development time, carefully emulsify 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 colorants can cause severe allergic reactions.
Read and follow the instructions.
Perform a preliminary allergy test 48 hours before applying any hair colorant. If no irritation occurs, proceed with the application.
Read the product leaflet carefully.
This product is not intended for use on persons under the age of 16.
For professional use only.
Wear appropriate gloves. If the product comes into contact with eyes, rinse immediately and thoroughly with water.
Do not use to colour 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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