Description
How to Use
Ingredients
Warnings
Warranty
Description

More depth. More intensity – without altering the base tone.

The Majirel Base Contrast Booster is a technical salon tool designed for when colour needs to go further. It doesn't add tone; it amplifies impact. When integrated into the Majirel mix, it directly influences the depth, saturation, and contrast of the colour, especially on dark bases (levels 1 to 4) where the reflection tends to lose visual strength.

In professional practice, its effect is evident from the first contact. The creamy, stable texture allows for a homogeneous mix without waste, ensuring absolute control during application – on roots, lengths, or strategic contrast areas. On hair, the result is immediate: denser dark tones, more defined reflections, a more professional finish... without the need for pre-lightening and without altering the chosen base tone.

Integrated into the Majirel system, it respects the hair fibre while enhancing the chromatic result. Up to 3x more softness after colouring and up to 100% grey hair coverage* make it a reliable ally for demanding technical services. For creative work, it combines precisely with warm Majirel Boosters – copper, magenta, or red – creating intense, controlled, and long-lasting contrasts.

Developed for salons. Optimised for professionals seeking visible, consistent, and replicable results in high-performance permanent colour.

Key Features

Contrast intensifier for exclusive use with Majirel
Enhances colour depth, saturation, and definition
Ideal for dark bases (levels 1 to 4)
Does not alter the colour's base tone
Professional creamy texture, easy to mix and apply
Compatible with warm Majirel Boosters
Up to 3x more softness post-colouring*
Up to 100% grey hair coverage*
Professional technical product

*Instrumental test vs. previous Majirel version.


Shade samples are indicative only, as they may vary depending on the computer screen used for viewing. Therefore, Pluricosmética disclaims any responsibility for potential colour variations that may arise.
How to Use

Never apply neat. Always use with Majirel colour and L'Oréal Professionnel oxidant.

Standard mix with Majirel:

  • Levels 8–10: 1 to 6 ml of Booster + 60 ml Majirel + 90 ml oxidant

  • Levels 5–7: up to 15 ml of Booster + 60 ml Majirel + 90 ml oxidant

  • Levels 1–4: up to 30 ml of Booster + 60 ml Majirel + 90 ml oxidant

Maximum contrast (Base Contrast + warm Booster):

  • 40 ml Majirel Base Contrast + 20 ml Booster (copper, magenta, or red) + 90 ml oxidant

  • Development time: 35 minutes

Previously coloured hair: use 20 or 30 volume oxidant (6% or 9%).
Use L'Oréal Professionnel oxidants exclusively (12.5 / 20 / 30 / 40 vol.).

Ingredients
INGREDIENTS: AQUA / WATER / EAU • CETEARYL ALCOHOL • AMMONIUM HYDROXIDE • C15-19 ALKANE • PROPANEDIOL • PROPYLENE GLYCOL • STEARETH-20 • PARFUM / FRAGRANCE • SODIUM METABISULFITE • ASCORBIC ACID • CETETH-10 • TETRASODIUM GLUTAMATE DIACETATE • STEARETH-2 • EDTA • STEARIC ACID • PALMITIC ACID • CANDELILLA CERA / CANDELILLA WAX / CIRE DE CANDELILLA • ACETYL CEDRENE • TRIMETHYLCYCLOPENTENYL METHYLISOPENTENOL • MYRISTIC ACID (F.I.L. N70062658/1).
Warnings
Hair colourants can cause severe allergic reactions.
Read and follow the instructions.
Perform a preliminary allergy patch test 48 hours before applying any hair colour. If no irritation occurs, proceed with the application.
Read the leaflet accompanying the product carefully.
This product should not be used on persons under 16 years of age.
For professional use only.
Wear appropriate gloves. If the product comes into contact with eyes, rinse immediately and thoroughly with water.
Do not use for colouring 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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