








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.
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:- 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.
- 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.
- 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.
- 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.
- 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.
- Perform an allergy patch test 48 hours prior to use and read the instructions carefully. Prepare your workspace and don gloves.
- Mix the colourant gel and developer crème. Apply the luminous colour mixture evenly to dry, unwashed hair, starting at the roots.
- Leave on for the recommended development time (typically 30 minutes). Rinse hair thoroughly until the water runs clear.
- 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.
