{"product_id":"loreal-preference-21-blue-black-luminous-fade-defying-permanent-hair-colour-for-at-home-use","title":"L'Oréal Préférence 21 Blue Black Luminous, Fade-Defying Permanent Hair Colour for At-Home Use","description":"\u003cp\u003eFor anyone who finds plain black too flat, 21 Blue Black adds a blue reflect that only shows in direct light. Indoors it reads as a deep black. In sunlight there is a cool shimmer running through it.\u003c\/p\u003e\u003cp\u003ePermanent, so it covers rather than tints. Greys go to 100%, temples included, and the colour is formulated to resist fading for up to eight weeks. A conditioner comes in the box for the step after the rinse.\u003c\/p\u003e\u003cp\u003eIt behaves like any dark permanent going on, which means the mess is the main risk. Blue black stains skin and towels, so a barrier of balm along the hairline and an old towel round the shoulders are worth five seconds each.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDeep blue black with a cool undertone in daylight\u003c\/li\u003e\n\u003cli\u003e100% grey coverage from root to tip\u003c\/li\u003e\n\u003cli\u003eUp to 8 weeks before the tone starts to shift\u003c\/li\u003e\n\u003cli\u003eEnriched conditioner included in the kit\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eOne thing to plan for. Blue black is a commitment, and getting out of it later takes more than a clarifying wash, so it suits people happy to stay dark for a while.\u003c\/p\u003e","brand":"TJ Beauty Products UK","offers":[{"title":"Default Title","offer_id":58507283235148,"sku":"Loreal-21","price":12.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0916\/7834\/3500\/files\/3600523335695_t1.webp?v=1787336617","url":"https:\/\/zenvy-beauty.com\/products\/loreal-preference-21-blue-black-luminous-fade-defying-permanent-hair-colour-for-at-home-use","provider":"Zenvy Beauty","version":"1.0","type":"link"}