Description
What It Is
L’Oréal Professionnel DIA DIActivateur 9-Volume (2.7%) Developer is a professional demi-permanent activator formulated for use with both DIA Light and DIA Richesse hair colour systems. It is suitable for colour-treated, sensitised, and natural hair, offering balanced activation with controlled results.
What It Does
The 9-Volume DIActivateur works seamlessly with DIA Light and DIA Richesse to deliver:
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Soft, luminous demi-permanent colour results
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Controlled darkening and tonal refinement
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Versatile services across light, rich, and fashion tones
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Even colour distribution with enhanced shine
Its moderate strength makes it ideal for both refreshing colour and creating deeper, more intense demi-permanent results.
Key Benefits
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9-Volume (2.7%) demi-permanent developer
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Compatible with DIA Light and DIA Richesse
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Ideal for toning, darkening, and colour refinement
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Smooth, creamy texture for easy mixing and application
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Supports professional salon-quality colour services
What Else You Need to Know
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DIA colour systems mix in a 1:1.5 ratio with DIActivateur Developer
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Formulated exclusively for DIA Light and DIA Richesse for optimal performance
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DIA Light: Use 6-Volume or 9-Volume (choose 9-Volume when going darker)
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DIA Richesse: Use 9-Volume or 15-Volume (including Hi-Visibility shades)
How To Use
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Mixing Ratio: 1:1.5 (1 tube colour : 2.6 oz developer)
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Application: Apply using a bowl and brush or plastic applicator bottle
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Development Time: 2–20 minutes, depending on desired intensity






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