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L'Oréal Préférence 21 Blue Black Luminous, Fade-Defying Permanent Hair Colour for At-Home Use
L'Oréal Préférence 21 Blue Black Luminous, Fade-Defying Permanent Hair Colour for At-Home Use - Transform your look with L'Or
L'Oréal Préférence 21 Blue Black Luminous, Fade-Defying Permanent Hair Colour for At-Home Use - Transform your look with L'Or

L'Oréal Préférence 21 Blue Black Luminous, Fade-Defying Permanent Hair Colour for At-Home Use

Transform your look with L'Oréal Préférence 21 Blue Black Permanent Hair Colour. Achieve an intensely luminous, fade-defying blue-black shade that lasts up to 8 weeks. Experience salon-quality results, superior grey coverage, and radiant shine from home.
£12.99
Tax included.
Intense, Luminous Blue Black Shade for a Dramatic Look
Up to 8 Weeks of Fade-Defying Colour & Radiant Shine
Superior 100% Grey Coverage for Flawless, Even Results
Enriched Conditioner for Silky, Healthy-Looking Hair

Pairs well with

Unleash the ultimate in bold, sophisticated hair colour with L'Oréal Préférence 21 Blue Black Luminous, Fade-Defying Permanent Hair Colour. Exclusively at TJ Beauty Products UK, this iconic shade from L'Oréal Paris Préférence range offers an intensely vibrant, deep blue-black hue, transforming your hair with salon-quality results at home. Enjoy unrivalled luminous shine and up to 8 weeks of brilliant, fade-defying colour with superior grey coverage. Express your unique style with confidence.

Key Benefits of L'Oréal Préférence | 21 Blue Black

  • Intense, Luminous Blue Black Shade: Experience a dramatic, deep blue-black colour that reflects light beautifully, offering a sophisticated and vibrant finish. More than just black; it's a dark blue hair colour with an alluring, shimmering undertone.
  • Up to 8 Weeks of Fade-Defying Colour & Shine: L'Oréal Préférence's advanced technology locks in colour, ensuring your permanent hair colour remains vibrant and true for up to two months, resisting fading. Enjoy consistent, radiant shine day after day.
  • Superior Grey Coverage for Flawless Results: Achieve 100% grey coverage hair dye that seamlessly blends with your natural hair, ensuring a uniform, youthful, and vibrant look without a trace of grey.
  • Enriched Conditioner for Silky, Healthy-Looking Hair: The included High Shine Elixir and Shine Protect Conditioner, formulated with precious oils like Argan Oil and Camellia Oil, deeply nourish and protect your hair, leaving it feeling soft, smooth, and incredibly healthy with a luxurious gloss.
What sets L'Oréal Préférence apart is its commitment to creating luxurious, long-lasting hair colour with exceptional shine. The unique Préférence formula, often inspired by professional salon techniques, delivers a high-fidelity colour result that's both intense and luminous. The secret lies in its patented fade-defying system, which, when combined with the included High Shine Elixir, helps to create a long-lasting, vibrant hue that stands the test of time. This isn't just at-home hair dye; it's a beauty ritual designed to elevate your hair colour experience. The Pro-Precise applicator ensures easy and even distribution, making your at home hair dye UK application effortless and mess-free, leading to professional-looking results every time. Many users search for the best blue black hair dye and consistently find L'Oréal Préférence to be a top contender due to its reliability and stunning finish. The 21 Blue Black shade is a masterpiece of colour. It’s a deep, rich black infused with captivating blue undertones that come alive in the light. Perfect for those who desire a bold statement without being overly dramatic, this intense blue black hair colour adds depth, dimension, and an undeniable allure to any complexion. Whether you're looking to refresh your current dark shade, experiment with a dramatic new look, or effectively cover resistant greys, L'Oréal Préférence 21 Blue Black delivers a truly unique and vibrant black hair dye experience. This permanent black hair colour offers a sophisticated alternative to plain black, giving your hair an enigmatic sheen. Experience the confidence that comes with a fade-defying hair colour. L'Oréal Préférence's innovative formula ensures that the initial richness and luminosity of your 21 Blue Black shade persist for weeks. The specially formulated Shine Protect Conditioner seals in colour and boosts shine, protecting your hair from external aggressors that can cause premature fading. Enjoy up to 8 weeks of beautiful, radiant blue black hair that looks freshly coloured, maintaining its glossy finish and vibrant tone.

How to Achieve Your Luminous Blue Black at Home

For the best at-home hair dye experience and optimal results with your L'Oréal Préférence 21 Blue Black kit, please follow these steps carefully:
  1. Preparation & Safety First: Always perform an allergy patch test 48 hours before colouring, even if you’ve coloured your hair before, to prevent any adverse reactions. Read the instruction leaflet thoroughly. Don protective gloves and prepare your work area to avoid staining.
  2. Mix & Apply Your Colour: Unscrew the cap of the developer crème bottle and pour the entire contents of the colourant gel into it. Replace the cap and shake vigorously for at least 30 seconds until the mixture is completely blended. Immediately unscrew the tip of the applicator bottle and apply the mixture to dry, unwashed hair. Start at the roots, ensuring full saturation, then work through to the ends.
  3. Develop, Rinse & Condition: Allow the colour to develop for the time indicated in your instruction leaflet (typically 30 minutes, or longer for resistant greys – always check the leaflet). Once the development time is complete, add a small amount of warm water to your hair and gently massage to emulsify the colour. Rinse your hair thoroughly under warm running water until the water runs clear. Do not shampoo.
  4. Apply High Shine Conditioner: Apply a generous amount of the included Shine Protect Conditioner (or High Shine Elixir, if provided in your specific kit) from roots to ends. Massage gently, leave on for 2 minutes, then rinse thoroughly. This step is vital for locking in shine and leaving your hair feeling incredibly soft and smooth.
Remember, for a truly professional finish with your L'Oréal Préférence permanent hair colour, always adhere to the specific timings and instructions provided in your product box. Your L'Oréal Préférence 21 Blue Black at-home hair dye kit comes complete with everything you need for a luxurious colouring experience:
  • 1 x Luminous Colourant Gel
  • 1 x Developer Crème
  • 1 x Shine Protect Conditioner (or High Shine Elixir)
  • 1 x Pair of High-Quality Gloves
  • 1 x Instruction Leaflet

Nourishing Ingredients for Beautiful Hair

L'Oréal Préférence is renowned not just for its stunning colours but also for the care it provides. The post-colouring Shine Protect Conditioner is a standout, designed to enhance and prolong your colour's vibrancy while deeply nourishing your hair. Key ingredients often include:
  • Argan Oil (Argania Spinosa Kernel Oil): Known for its rich moisturizing properties, Argan Oil helps to hydrate, soften, and add brilliant shine to your hair, leaving it feeling luxurious and smooth.
  • Camellia Oil (Camellia Oleifera Seed Oil): A treasured beauty secret, Camellia Oil helps to protect hair from environmental damage, provides intense nourishment, and contributes to a silky, glossy finish.
  • Vitamin E (Tocopheryl Acetate): An antioxidant that helps protect hair from damage, contributing to overall hair health and vitality.
These ingredients work in harmony to ensure your hair not only looks fantastic but feels healthy and cared for, mitigating the potential dryness often associated with permanent hair colour. When you choose to purchase your L'Oréal Préférence 21 Blue Black permanent hair dye from TJ Beauty Products UK, you're not just buying a product; you're investing in quality, authenticity, and exceptional service. We are your trusted UK stockist for premium beauty products, committed to providing you with genuine L'Oréal items at competitive prices. Enjoy fast, reliable delivery across the UK, ensuring your at-home hair colour kit arrives promptly so you can achieve your desired look without delay. Shop with confidence, knowing you're getting the best L'Oréal hair dye experience backed by our dedication to customer satisfaction. Elevate your hair colour game with the dramatic intensity and radiant shine of L'Oréal Préférence 21 Blue Black. This luminous, fade-defying permanent hair colour offers a sophisticated, long-lasting solution for anyone seeking a bold yet elegant transformation. Perfect for achieving intense blue black hair colour with superior grey coverage and a healthy, glossy finish. Add L'Oréal Préférence 21 Blue Black to your beauty routine today and unleash your most vibrant self. Shop now at TJ Beauty Products UK and experience the difference of premium at-home hair colour.
  1. Perform an allergy patch test 48 hours prior to use and read the instructions carefully. Prepare your workspace and don gloves.
  2. Mix the colourant gel and developer crème. Apply the luminous colour mixture evenly to dry, unwashed hair, starting at the roots.
  3. Leave on for the recommended development time (typically 30 minutes). Rinse hair thoroughly until the water runs clear.
  4. Apply the enriching Shine Protect Conditioner, leave for 2 minutes, then rinse for dazzling shine and softness.

Colourant Gel: Aqua, Alcohol Denat., PEG-4 Rapeseedamide, Glyceryl Lauryl Ether, Laureth-5 Carboxylic Acid, Ethanolamine, Dipropylene Glycol, Hexylene Glycol, Ammonium Hydroxide, Toluene-2,5-Diamine, Resorcinol, p-Aminophenol, m-Aminophenol, 2,4-Diaminophenoxyethanol HCl, Ascorbic Acid, Polyquaternium-6, Parfum. Developer Crème: Aqua, Hydrogen Peroxide, Cetearyl Alcohol, Sodium Stannate, Trideceth-2 Carboxamide MEA, Phosphoric Acid, Ceteareth-25, Tetrasodium Pyrophosphate, Glycerin. Shine Protect Conditioner: Aqua, Cetearyl Alcohol, Behentrimonium Chloride, Argania Spinosa Kernel Oil (Argan Oil), Camellia Oleifera Seed Oil, Tocopheryl Acetate (Vitamin E), Amodimethicone, Trideceth-12, Chlorhexidine Digluconate, Parfum.

United Kingdom:

  • All orders are dispatched within 24 hours
  • Please allow at least 2-4 working days for delivery.
  • Restrictions will apply on deliveries on National & Bank Holidays.

Express Shipping:

  • Express shipping is available Mon-Thurs till GMT 2pm & Friday till GMT 1pm to get the order for the next working day. Our express shipping orders success rate is 99%. National & Bank Holidays may affect express shipping.

For more information on our shipping policy please see HERE.