Description
What It Is
L’Oréal Professionnel DIA DIActivateur 6-Volume (1.8%) Developer is a low-volume professional developer specially formulated for use with DIA Light Demi-Permanent Haircolour. It is ideal for colour-treated, sensitised, or previously lightened hair, delivering refined tonal results without compromising hair integrity.
What It Does
The 6-Volume DIActivateur pairs perfectly with DIA Light to provide:
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Luminous, glossy colour and refined tone
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High-vinyl shine finish
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Corrective colour and pre-colouration services
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Refreshing and toning highlights and balayage
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Soft lowlights
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Colour matching and refreshing permanent haircolour
Its gentle formulation allows precise colour control while maintaining hair softness and shine.
Key Benefits
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Low-strength 6-Volume (1.8%) developer for demi-permanent colour
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Ideal for sensitised and colour-treated hair
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Enhances shine and tonal accuracy
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Smooth, creamy texture for easy mixing and application
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Large 32 oz salon size for professional use
What Else You Need to Know
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DIA Light mixes in a 1:1.5 ratio with DIActivateur Developer
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Designed exclusively for use with DIA Light and DIA colour systems
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For darker results, 9-Volume DIActivateur may be used with DIA Light
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Not recommended for use with permanent haircolour systems
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 tone and intensity






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