New L'Oréal Professionnel’s Dia Light Demi Permanent Hyaluronic Acidic Gloss Color
No Ammonia Gloss, tone & refresh color. Deep hydration. Instantly fights dryness, one of the first visible signs of damage.
Description
Dia light Acidic Gloss Color is the breakthrough way to gloss, tone & refresh. Our first acidic demi-permanent hair color enriched with Hyaluronic acid that instantly hydrates during color and fights the first visible sign of damage, dryness. Dia light neutralizes undertones after lightening, gently refreshes faded lengths after color and deposits shine to revive dull hair. A unique, acidic pH technology exclusively for professional use.
Results & Benefits
- Enriched with Hyaluronic Acid, Dia Light helps fight dryness*, one of the first visible signs of hair damage. and provides up to 2X More Hydration**.
- The advanced formula delivers intense hydration while enhancing color vibrancy with up to 82% glossier color*, more radiant results.
- Helps preserve cortex integrity and the gentle acidic technology helps maintain the hair's internal structure, supporting healthier-looking color results after every service.
- Vibrant, true-to-tone color lastingness up to 6 weeks*
- Designed for sensitized hair, Dia Light strengthens hair after bleach, 3X less breakage*** for more resilient-looking strands.
*Instrumental test
**Instrumental test on natural hair
***Instrumental test on bleached hair
How To Use
Preparation
Step 1: Wear suitable disposable gloves.
Step 2: Use exclusively with the recommended Diactivateurs 9 vol. (2.7%) or 20 vol. (6%)
Step 3: Use only the indicated proportions outlined on both the carton and the tube
Step 4: When a shaker (bottle) is used, open immediately after mixing to avoid the shaker (bottle) bursting and the product overflowing.
Step 5: In a bowl or an applicator shaker (bottle).
Step 6: Mix 60 ml (1 tube) of Dia light coloration cream.
Step 7: Then add 90 ml of Diactivateurs 9 vol. (2.7%) or 20 vol. (6%), according to the result required. Quantities of product can be increased if more is required, provided that you always mix using a 1: 1.5 ratio.
Application and Rinsing
Step 1: On dry hair, apply the mixture, using a bottle or a brush.
Step 2: Wear suitable disposable gloves.
Step 3: Do not use metallic tools (bowl, comb).
Step 4: Rinse the hair thoroughly after the development time.
Step 5: Development time: 20 min.
Step 6: Emulsify gently, rinse thoroughly and shampoo with Metal Detox or Vitamino Color Spectrum.
Services Opportunities
With Dia light you can introduce the following services in salon:
Hyaluronic Glossing, Toning & Refreshing Services:
1. Hyaluronic Glossing: A global application to add shine and increase manageability a top of any old coloration service.
2. Hyaluronic Toning: To neutralize unwanted undertones immediately after pre-lightening or a balayage
3. Hyaluronic Refreshing: To match reflect and revive faded color specifically on lengths and ends after a grown out permanent hair color service.
Ingredients and Safety Warning
The ingredients list is subject to change and depends on country selling location. Consumers should refer to the product packaging for the most relevant ingredients list. In case of problem, please contact the consumer care center.
FAQs
1. What is Dia Light hair color mainly used for?
Dia Light hair color is primarily used for toning, glossing, and refreshing previously lightened or color-treated hair. It helps neutralize unwanted tones and enhance shine.
2. Is L’Oréal Professionnel Dia Light suitable after a bleaching service?
Yes, L’Oréal Professionnel Dia Light is specifically designed as a post-lightening service. It helps rebalance the hair fiber, neutralize brassiness, and restore a healthy-looking finish.
3. Does Dia Light color lift the natural hair shade?
No, Dia Light color does not lift the natural hair. It is an acidic demi-permanent formula that works only to tone and enhance existing color.
4. Can Dia Light be used to tone blonde hair?
Absolutely. L’Oréal Professionnel Dia Light is highly effective for toning blonde hair, especially for neutralizing yellow or brassy tones and achieving cooler, more refined shades.
5. How long does Dia Light hair color processing take?
Processing time for Dia Light hair color can vary but toning services typically take around 5–20 minutes depending on the desired result and hair condition.
6. Is Dia Light ammonia-free?
Yes, L’Oréal Professionnel Dia Light is an ammonia-free demi-permanent hair color, making it a gentler option for sensitized or previously treated hair.
7. Can Dia Light be used on brunette hair?
Yes, Dia Light can be used on brunettes to neutralize unwanted undertones and add shine, especially after lightening or balayage services.
8. Does Dia Light provide grey coverage?
No, Dia Light does not cover grey hair. For grey coverage, L’Oréal Professionnel recommends using Dia Color from the range of hair color.
9. What are the benefits of using Dia Light after coloring?
Using Dia Light after a color service helps refresh faded lengths, enhance gloss, smooth the cuticle, and hair is 30% more conditioned*.
*Instrumental test
10. Can Dia Light color be customized for different tones?
Yes, Dia Light color offers a wide palette of shades that can be intermixed, allowing professionals to create customized toning and glossing results for every hair type.

