The web browser you are using is outdated and not supported (some features may not work properly). Please update your browser. More information on the link here.
I declare that I am acquainted with the Personal Data Processing Policy.
Don't have an account?
British Pound Sterling (GBP)
Euro (EUR)
United States dollar (USD)
United Kingdom
Choose different country
Beauty help center Beauty blog Shipping and payment


Shipping for country: United Kingdom
Shipping Price Free shipping from
DHL Express DHL Express Depends on package volume
DHL Economy Select DHL Economy Select Depends on package volume 192.00 £
Post - bussiness parcel Post - bussiness parcel From 26.19 £
EMS - express post EMS - express post From 28.83 £


Available payment methods depend on the selected shipping.
Payment Price
Credit / debit card online 0 £
Contact Gifts
Sign up and get benefits!

L'Oréal Professionnel Dia Light Booster

acid demi-permanent booster for color correction
Gel cream demi-permanent colour without ammonia for toning, refreshing or intensifying basic colour shades L'Oréal Professionnel DIA Light. The unique acid gel cream technology is designed...
More information
Versions L'Oréal Professionnel Dia Light Booster
Contents Shade
50ml Ash

In stock (4 pcs)

7.30 £

14.60 £ / 100 ml

50ml Copper

In stock (10+ pcs)

7.30 £

14.60 £ / 100 ml

50ml Matte

In stock (6 pcs)

7.30 £

14.60 £ / 100 ml

50ml Gold

In stock (3 pcs)

7.84 £

15.68 £ / 100 ml

50ml Red Expected on Oct 2, 2023 The product should be available from that date.

7.30 £

14.60 £ / 100 ml

50ml Violet Expected on Oct 2, 2023 The product should be available from that date.

7.30 £

14.60 £ / 100 ml

L'Oréal Professionnel Dia Light Booster

Gel cream demi-permanent colour without ammonia for toning, refreshing or intensifying basic colour shades L'Oréal Professionnel DIA Light.

The unique acid gel cream technology is designed to neutralize and add shine after lightening and refresh length after coloring. Combine with the Dia Light range to create endless possibilities and individual results.


  • Restore and revive the basic shades of DIA Light
  • Color correction and neutralization of unwanted glare
  • Tinting and color unification
  • Seals hair cuticles for a vinyl look
  • Gel-cream consistency, ammonia-free, acidic pH
  • Also suitable for sensitive and chemically treated hair
  • New packaging has a positive environmental impact (uses 33% less water + saves up to 15% of product)


  • Gold, Copper, Red - perfect for conditioning warm shades or intensifying warm highlights.
  • Matte, Violet, Ash - help increase neutralization and intensity of highlights on darker bases.


  • Acid technology - has an acidic pH close to the natural pH of the hair, these acidic colors do not cause oxidation and thus do not cause hypersensitivity in the hair fiber, making these colors suitable for more sensitive hair. In addition, thanks to the acidic pH, it smooths the surface of the hair, sealing the cuticles and thus ensuring a high shine, which will make the hair look as good as if a treatment had been applied after colouring.
  • Cationic polymers - create the appearance of healthy hair and give intense shine.
  • Ammonia-free - no unpleasant odour.

How to use

In a bowl, bottle or shaker, mix Dia Light including booster and developer in the recommended proportions until a homogeneous mixture is formed. Then apply to dry hair using a brush or dispensing bottle. Leave on for up to 20 minutes. Emulsify and rinse thoroughly after the time has elapsed.

  • Mixing ratio: 1:1.5 (50 g booster + 75 g developer or 50 g Dia Light including booster* + 75 g developer)
  • Development time: 2-20 min
  • Recommended Developer: DIActivateur Developer 6 vol. (1.8%), 9 vol. (2.7%)

The amount required can range from 1 gram to a full tube. As a general rule the darker the hair, the more you will need. The lighter the hair the less you will need.


  • 6 vol. (1.8%) - for light hair
  • 9 vol. (2.7%) - for brunettes


  • To add shine: up to 20 minutes (6 or 9 vol.)
  • For toning after lightening, to add shine and revive colour: 5-10 minutes (6 or 9 vol.)
  • For quick colour change: 5-20 minutes (6 or 9 vol.)Dia Light Booster
  • For permanent colour: up to 20 min (6 or 9 vol.)

Caution! developer L'Oreal Professionnel Diactivateur is not included, must be purchased separately.


Aqua / Water • Laureth-2 • Trideceth-2 Carboxamide Mea • Peg-4 Rapeseedamide • Glycerin • Laureth-12 • Oleth-30 • Sodium Cetearyl Sulfate • CI 77891 / Titanium Dioxide • Sodium Sulfite • Ethanolamine • Thioglcerin • Polyquaternium-6 • Toluene-2,5-Diamine • Cetyl Hydroxyethylcellulose • Edta • Tetrasodium Edta • Erythorbic Acid • 2,4-Diaminophenoxyethanol Hcl • Parfum / Fragrance


The product can cause severe allergic reactions. Read the instructions and follow them. This product is not intended for use by persons under the age of 16. Temporary black henna tattoos may increase the risk of allergies. Do not dye your hair if you have a rash on your face or a sensitive, irritated and damaged scalp, have ever had any reaction after dyeing your hair, have had a reaction to a black henna temporary tattoo in the past. Avoid contact with eyes. In case of eye contact, flush immediately with water. Do not use to dye eyelashes and eyebrows. Rinse hair thoroughly after use. Use suitable gloves. Do an allergy test 48 hours before each use of hair dye, even if you have used hair dye before. In case of any reactions or doubts, please consult a doctor before using any hair dye. Keep out of reach of children.

Key features
For whom: For women
Hair type: All types
Benefit: Shine, Neutralization of warm tones
Ingredients: Ammonia free
Any questions?
Ask more

Catherine Neat hair and skin specialist
Catherine Neat
hair and skin specialist

+44 330 808 5640
At workdays: 8:00-16:30

Own warehouses
Stock products are ready for a fast dispatch
Amazingly low prices
The best possible price setup on the market
World news
The latest beauty products
Free gifts
You will receive a useful gift with your order

This website uses cookies in order to be able to provide its services. By continuing to the site, you are agreeing to their use. To find out more, including the information on how to remove and disable them, click here .