L'Oréal Professionnel Dia Light Toner – Demi-Permanent Hair Color

Dia Light is L'Oreal Professionnel's demi-permanent toning and color system, formulated for deposit-only results that add shine, neutralize unwanted tones, and build luminosity without lifting. Whether refreshing highlights, toning post-bleach results, or creating milkshake blondes with soft reflect, Dia Light delivers transparent, glass-like color that respects the hair's structure.

Available Shades

Available in 16 shades across Milkshake toners, Fundamentals, and specialty Copper and Red options.

Professional Benefits

• Demi-permanent, deposit-only formula, no lift, no commitment, no damage
  
• Adds extraordinary shine and glass-like transparency to treated hair
  
• Neutralizes unwanted warm or brassy tones after bleach
  
• Milkshake range delivers wearable pastel-toned blondes with long-lasting reflect
  
• Fundamentals line provides base neutralization and tone customization flexibility
  
• Compatible with Dia Light Activator (6 Vol, 9 Vol, 15 Vol) for controlled results
  
• Gentle on sensitized or previously lightened hair
  
• Results last 4–6 weeks with gradual, natural fade

How to Use

1. Select the target shade based on the client's current level and desired result
   
2. Mix with Diactivateur Activator in a 1:1.5 ratio (color to developer)
   
3. Apply to clean, towel-dried hair, section by section
   
4. Process 20 minutes at room temperature (or up to 35 minutes for deeper deposit)
   
5. Rinse thoroughly, shampoo lightly, and finish with a color-protecting conditioner

Pro tip: For Milkshake blondes, use Diactivateur 6 Vol for maximum translucency and minimal deposit. Mix FNDMTL 0 with any shade at a 1:1 ratio to create a custom pastel effect.