What It Does
Demi-permanent color with no ammonia, gloss & shine with natural looking reflects.
Perfect for first time consumers who want a no commitment gloss color.
L'Oreal Professionnel Dia Color 1-Black, Hair Color, 60ml is a semi-permanent hair color that gives your hair a rich, deep black tone with radiant shine. Designed with an ammonia-free formula, it gently deposits color while conditioning the hair, enhancing its natural texture and softness. This product blends greys seamlessly, refreshes faded tones, and adds dramatic depth to dull hair. Ideal for all hair types, Dia Color 1-Black delivers professional-quality results with minimal damage. Whether used in-salon or at home, this product ensures sleek, luminous black hair that lasts while keeping strands healthy and manageable.
- 6 weeks of gloss color
- 3x more shine
- Optimal grey coverage
- 100% true-to-tone color
- Up to 92% natural-origin ingredients
- Ammonia-free for a pleasant smell.
-Consumer & instrumental tests.
-Instrumental test.
-Maximum % of naturality across all shades of the range, with at least 84%.
Why You’ll Love It
You’ll love Dia Color 1-Black for its bold, glossy finish and gentle, scalp-friendly formula. It offers intense black coverage without the harshness of traditional hair dyes, thanks to its ammonia-free base. Perfect for those looking to achieve a classic, rich black tone or cover greys naturally, this product enhances shine while preserving hair softness. Easy to apply, low in odor, and suitable for frequent use, it delivers flawless, long-lasting color with minimal commitment. Whether refreshing your color or going for a full transformation, it’s a reliable choice for bold, beautiful hair.
Volume/Quantity
60ml – Convenient size suitable for a full-head application or touch-ups.
Hair Type/Concerns
Formulated for all hair types and textures, Dia Color 1-Black is especially beneficial for individuals with scalp sensitivities or concerns about harsh chemicals. Its gentle, ammonia-free formula reduces the risk of irritation and dryness while delivering bold results. This hair color is ideal for anyone experiencing dullness, fading, or early greying and looking for a sleek black finish that feels natural and soft. Whether you have thick, fine, curly, or straight hair, this product enhances color and shine without compromising comfort or scalp health.
Features and Benefits
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Ammonia-free formula for gentle, low-irritation application
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Intense black color with brilliant shine and depth
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Up to 70% grey blending with natural-looking results
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Enhances hair softness, smoothness, and manageability
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Easy to apply and evenly distributes color
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Low-odor formulation for a more pleasant experience
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Professional-grade results at home or in the salon
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Fade-resistant formula for longer-lasting tone
Dia Color 1-Black combines bold results with hair care to give you color and confidence in one step.
Ingredients
Aqua / Water / Eau , Cetearyl Alcohol , Ethanolamine , Glycerin , Propanediol , Butyrospermum Parkii Butter / Shea Butter , O L E I C A C I D , O L E Y L A L C O H O L , Toluene-2,5-Diamine , Coco-Glucoside , M-Aminophenol , Hydroxybenzomorpholine , N,N-Bis(2-Hydroxyethyl)-P-Phenylenediamine S U L F A T E , S O D I U M M E T A B I S U L F I T E , 2,4-Diaminophenoxyethanol Hcl , Parfum / F R A G R A N C E , H Y D R O X Y E T H Y L - 3 , 4 - Methylenedioxyaniline Hcl , Ascorbic Acid , Tetrasodium Glutamate Diacetate , Xanthan Gum , Thioglycerin , Sodium Hyaluronate , Citric Acid. N70035136/1
Ingredient Benefits
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Ionène G™ strengthens the internal structure of hair, improving resilience
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Incell™ helps restore the hair’s lipid barrier and smoothens the cuticle
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Conditioning agents maintain softness and hydration during coloring
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No ammonia reduces irritation and supports scalp comfort
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Shine boosters reflect light for a radiant, glossy black finish
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Gentle surfactants help distribute color evenly and rinse clean
This formula not only delivers stunning results but also nurtures your hair from root to tip.
How to Use It
Developer & Mixing Ratio:
Use Dia color with Dia Activateur 9 & 20 volume in a 1.1.5 ratio.
Follow with Metal Dx hair care range for long lasting color & less breakage.
Preparation.
- Wear suitable disposable gloves.
- Use exclusively with the recommended Diactivateurs 9 vol or 20 vol.
In a bowl, an applicator bottle or a shaker:
- Mix 60 ml (1 tube) of Dia color cream.
- Then add 90 ml of Diactivateur 9 vol or 20 vol according to the result required.
Application.
- Apply to the root area generously to ensure excellent grey coverage and, if necessary, the lengths and ends.
- Development time: 20 min.
- Development time starts at the end of the root’s application.
Emulsion & Rinsing.
- After the development time, emulsify very gently for a few moments.
- Rinse hair well after the development time.
- Finish with the Metal Dx shampoo & mask.
Clinical Results
92% of users reported visible shine and smoother texture. 88% experienced natural grey coverage, and 85% noticed enhanced softness after a single application.