
Dia color
Demi permanent, no ammonia hair color. Gives 3x shinier hair, 6 weeks for glossy color and optimal grey coverage.

Dia light
Neutralizing gloss and lengths refresher color. The acidic gel-cream technology to neutralize & gloss after lightening and refresh lengths after color, the French way.
Looking for a game-changing semi-permanent color with minimal commitment? Dia by L’Oréal Professionnel might be the best hair colour service for you.
Explore the world of game-changing hair colours with L'Oréal Professionnel's Dia range, a perfect and effortless choice for those who crave variety without the long-term commitment. These semi-permanent colors not only provide an array of captivating hues but also ensure your hair looks naturally radiant and feels luxuriously soft and nourished. It is made with a no-ammonia formula to maintain the health and colour of your hair for you to delight in hair that's not just vibrant but also irresistibly touchable and glossy.
Experience this transformation at your nearest L'Oréal Professionnel salon where our hair professionals can guide you through the semi-permanent color and trust us, the possibilities are endless. The experts will help you discover the ideal shade that complements your style and personality and achieve the look of your dreams. So, what are you waiting for? Embrace a world of enchanting semi-permanent colors and revitalise your look without the need for a permanent change with L'Oréal Professionnel Dia.
FAQs
1. What is semi-permanent hair color?
Semi-permanent color is a type of hair color that offers a temporary change without the long-lasting commitment of permanent dyes. It typically contains lower levels of ammonia, making it a gentler option for coloring hair. Semi-permanent hair color molecules are larger and sit on the outside of the hair shaft, which means they gradually fade with each shampoo, lasting anywhere from a few weeks to a couple of months. This type of color is often used to experiment with different shades, enhance natural color, or add temporary highlights, providing flexibility for those who want a change without a permanent alteration.
2. What are the different types of hair coloring techniques?
Various hair coloring techniques offer unique ways to achieve a range of looks. Some popular methods include -
Highlights and Lowlights: These techniques involve adding lighter (highlights) or darker (lowlights) color to strands to create dimension.
- Balayage: A hand-painted method that creates a sun-kissed, natural look with softer regrowth lines.
- Ombre: A gradient effect, with hair transitioning from one color at the roots to another at the tips.
- Sombre: A subtle ombre, with a more gradual transition for a softer appearance.
- Global: A single, uniform color is applied to the entire head.
Each technique offers distinct results, allowing for personalised and creative hair color transformations.
3. What is no-ammonia hair color?
No-ammonia hair color is a type of hair color that does not contain ammonia in its formulation. Ammonia is often used in traditional hair colors to open the hair cuticle and allow the color molecules to penetrate and change the hair's natural color. It has a strong, unpleasant odour.
No-ammonia hair color contains alternative ingredients like alkaline agents to achieve similar color results without the need for ammonia. This can make the coloring process gentler on the hair and scalp, with less potential for damage, dryness, or irritation. No-ammonia hair color is a preferred choice for individuals with sensitive skin or those looking for a more comfortable and odour-free coloring experience.
4. How often should I use semi-permanent color?
The frequency of using semi-permanent hair color depends on personal preference and the desired look. Generally, it can be applied every four to six weeks, but it varies. Some people use it more frequently to maintain vibrancy, while others prefer a more gradual fade, extending the time between applications. Since semi-permanent color gradually washes out with each shampoo, the reapplication schedule can be adjusted based on how long you want the color to last. Factors like hair type, the product used, and more can also influence the duration, so consult an expert and consider your hair's needs for the best maintenance routine.
5. Is it better to use permanent or semi-permanent hair color?
Permanent hair colors provide long-lasting results and are ideal for a significant color change. It covers grey hair effectively but may require more maintenance as the roots grow out. On the other hand, the semi-permanent hair color is a gentler option, best for subtle color changes, enhancing natural hues, or experimenting with new shades. It gradually fades and is less damaging to the hair. However, the choice between the two depends on your preferences and needs.
6. Which Shampoos Work Best for Protecting Color-Treated Hair and Adding Shine?
To help maintain vibrant color and enhance shine, use L'Oréal Professionnel’s Vitamino Color Spectrum, specifically designed for color-treated hair. Sulfate-free or color-care formulas help minimize color fading while keeping hair looking glossy. Pairing professional color services like Dia Color with a dedicated color-care routine can help extend the life and radiance of your hair color.
7. What Is Dia Color?
Dia Color is a professional demi-permanent hair color designed to deliver natural-looking color results with up to 92% naturally origin ingredients*. It provides high-shine color, blends greys, and leaves hair looking healthy and radiant.
*Maximum % of naturality across all shades of the range, with at least 84%.
8. How Long Does Dia Color Last?
L'Oréal Dia Color offers long-lasting demi-permanent color that gradually fades over time. The longevity depends on factors such as hair condition, shade selection, and haircare routine, but it is designed to provide beautiful color with a soft regrowth effect.
9. Does Dia Color Cover Grey Hair?
Yes. Dia Color can help blend and soften the appearance of grey hair while maintaining a natural-looking result. It is ideal for clients looking for seamless grey blending without the commitment of permanent color.
10. What Makes Dia Color Different From Traditional Demi-Permanent Colors?
L'Oréal Dia Color is powered by Melanin Gap Filler Technology, which helps recreate natural-looking depth and reflects while delivering rich color and impressive shine. The formula is also ammonia-free and designed to leave hair looking healthier.
11. Is Dia Color Suitable for Damaged or Sensitized Hair?
Because Dia Color features an ammonia-free formula and conditioning technology, it is a suitable option for clients seeking professional color with a gentler approach. A professional consultation can help determine suitability based on hair condition.
12. Can Dia Color Enhance My Natural Hair Color?
Yes. L'Oréal Dia Color can be used to enhance natural tones, refresh faded color, or add dimension while maintaining a soft, natural-looking finish. It is ideal for clients who want subtle yet noticeable color enhancement.
13. Does Dia Color Leave Hair Looking Shiny?
One of the key benefits of Dia Color is its glossy finish. The formula is designed to deliver up to 3X more shine*, helping hair appear luminous, healthy, and vibrant after the color service.
*Instrumental test.
14. Is Dia Color Ammonia-Free?
Yes. L'Oréal Dia Color is formulated without ammonia, helping provide a more comfortable coloring experience while delivering rich color results and enhanced shine.
15. Can Dia Color Be Used to Refresh Existing Hair Color?
Yes. L'Oréal Dia Color is often used between permanent color services to refresh faded lengths, revive shine, and maintain vibrant-looking color without dramatically altering the existing shade.

