L'Oréal Professionnel Diactivateur 15 Vol Developer – Strong Toner Activator

The highest-volume developer in the Diactivateur range, designed for stronger toning action and subtle lift alongside demi-permanent deposit. Formulated to work in synergy with Dia Light and Dia Color, it activates color molecules for deeper pigment deposit while opening the cuticle enough to allow light tone correction on resistant or naturally darker hair.

Professional Benefits

• 15-volume formula for stronger toning and controlled single-level lift
  
• Activates Dia Light and Dia Color formulas for maximum color deposit
  
• Ideal for clients with resistant hair or a naturally warm base
  
• Allows for precise tone correction in one service
  
• Professional formulation designed for salon-only use
  
• Ensures consistent, reproducible results across services

How to Use

1. Measure the appropriate amount of Diactivateur 15 Vol developer
   
2. Mix with Dia Light or Dia Color in a 1:1.5 ratio (color to developer)
   
3. Apply the formula to clean, towel-dried hair using a tint brush
   
4. Process for 20 to 30 minutes depending on the target result
   
5. Rinse thoroughly and follow with a color-protecting conditioning treatment

Pro tip: Use 15 Vol when working with resistant natural hair or when the client needs one level of lightening alongside toning. For pure deposit or glossing on previously lightened hair, 6 Vol or 9 Vol will give cleaner, more controlled results.