Description
L’Oréal Professionnel Dia Color 5.18 is a demi-permanent professional hair colour that delivers cool-toned brown results with balanced ash and iridescent reflects. Its gentle formula enhances shine, refreshes colour, and blends early greys while keeping hair soft and smooth. Ideal for toning, colour correction, and maintaining salon-fresh depth and vibrancy.
Key Benefits
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Demi-permanent professional hair colour
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Cool ash-iridescent tone for neutral results
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Enhances shine and colour depth
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Soft grey blending effect
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Leaves hair smooth and conditioned
How to Use
Mix with Dia developer in recommended ratio. Apply evenly on towel-dried hair, process as advised, emulsify, rinse thoroughly, then shampoo and condition.

