--- product_id: 118652545 title: "Blue Black Hair Dye Permanent with Anti-Breakage Plex Hair Care, Vegan Hair Dye & Cruelty-Free, 100% Grey Coverage, Midnight Blue, For All Hair Types. Smart Beauty" brand: "smart beauty" price: "1194592₫" currency: VND in_stock: true reviews_count: 13 category: "Smart Beauty" url: https://www.desertcart.vn/products/118652545-blue-black-hair-dye-permanent-with-anti-breakage-plex-hair store_origin: VN region: Vietnam --- # Vegan & Cruelty-Free Formula Permanent Blue-Black Shade Plex Hair Care Protection Blue Black Hair Dye Permanent with Anti-Breakage Plex Hair Care, Vegan Hair Dye & Cruelty-Free, 100% Grey Coverage, Midnight Blue, For All Hair Types. Smart Beauty **Brand:** smart beauty **Price:** 1194592₫ **Availability:** ✅ In Stock ## Summary > 🔷 Elevate your look with the power of Blue-Black brilliance! ## Quick Answers - **What is this?** Blue Black Hair Dye Permanent with Anti-Breakage Plex Hair Care, Vegan Hair Dye & Cruelty-Free, 100% Grey Coverage, Midnight Blue, For All Hair Types. Smart Beauty by smart beauty - **How much does it cost?** 1194592₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/118652545-blue-black-hair-dye-permanent-with-anti-breakage-plex-hair) ## Best For - smart beauty enthusiasts ## Why This Product - Trusted smart beauty brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Universal Compatibility:** Perfect for all hair types including chemically treated, Afro, Asian, men, and women—embrace bold color without compromise. - • **Ethical Beauty, Made in the UK:** Proudly vegan, cruelty-free, and free from parabens, sulphates, and resorcinol, crafted by a family-owned British brand committed to sustainability. - • **Vibrant, Long-Lasting Blue-Black:** Transform your dark blonde to brown hair with a rich, permanent sapphire blue-black that covers 100% grey and roots flawlessly. - • **Effortless, Mess-Free Application:** Precision nozzle and smooth cream formula ensure an even, drip-free application at home—professional results without the salon price. - • **Rebuild & Protect with Plex Technology:** Infused with advanced plex care to strengthen, nourish, and restore hair structure while coloring—say goodbye to breakage. ## Overview Smart Beauty with Plex | Sapphire Blue is a permanent, vegan, and cruelty-free hair dye designed to deliver a stunning blue-black color while protecting and rebuilding hair with plex technology. Suitable for all hair types and providing full grey coverage, this UK-made, mess-free cream formula offers professional-grade results at home with ethical, sustainable ingredients. ## Description Buy Blue Black Hair Dye Permanent with Anti-Breakage Plex Hair Care, Vegan Hair Dye & Cruelty-Free, 100% Grey Coverage, Midnight Blue, For All Hair Types. Smart Beauty at desertcart UK. Free delivery on eligible orders. Review: Best dye for covering Grey/white hair - I'm on a journey to get my hair healthy again as it had started to go thin due to menopause. I used to bleach my roots every 8 weeks or so in order to have bright fashion colours ( pink/ purple ) , and with doing this a lot of hair at the nape of my neck and around my hairline had broken off. Since having ditched the bleach and the broken parts now growing back in nicely my hair was starting to look a bit drab as I have lots of white hairs at the root ( about 4 inches worth ). I was just using my usual semi permanent colours, but after about 3 washes the white hair was popping through again and sticking out like a sore thumb. I spent a good deal of time looking for purple colours on desertcart that cover grey/white hair. And I came across this one which is permanent. It's not going to do as much damage to my hair as bleach will as it is a conditioning based permanent dye so I'm so happy that I can now carry on having purple 💜 hair without struggling on how I'm going to cover my white hair and risking more damage to my hair. This hair dye is absolutely amazing, it is thick in consistency as it is a conditioning based permanent hair dye so trying to squeeze it from the bottle once mixed is hard work so next time I will put it in a bowl mix it and use a brush. The colour came out even all over and my hair didn't feel dry after so I'm happy that I am not doing damage to my hair. Highly , highly recommend this dye it is the best!. Update after having washed it 3 times , the colour has faded but it's still really vibrant and such a beautiful colour. I did find that the colour faded a lot more quickly than other permanent hair dyes do , as the vibrancy normally lasts a lot longer with other brands , but it faded to a nice lilac colour after about 6 washes , I wash my hair once a week for reference, so if you wash your hair more often then the colour will fade a lot quicker. Review: It works amazing - I read good and bad reviews. Mine is good is have quite a bit of silver hair and is nice and purple now. The rest of my hair is dark brown and is has a very nice purple tone. My husband used it to and his silver is not covered as well but his light brown hair looks quite purple. I believe it depends on hair porosity. ## Features - Hair dye for dark hair. Transform dark blonde - brown hair to a new look with a permanent Blue black hair dye kit, with a plex hair care that protects, rebuilds and restores your hair's structure - Permanent dark blue hair dye; for a full head of colour, covers grey, root touch-up, balayage, undertones, lowlights. For all hair types, including chemically treated, Afro, Asian, men, and women - Vegan, cruelty-free black hair dye. Using UK and European endorsed cosmetic standard ingredients blended into a smooth cream for home use. Part of the award-winning Smart Beauty hair colour collection - Mess-free application. Mix the black colour cream and developer in the provided bottle, evenly apply with the precision nozzle and work through with gloved hands for a non-drip colouring experience - Smart Beauty is a family-owned British business that produces premium vegan hair dye colouring kits. Committed to non-animal testing, ethical practice and minimal environmental impact ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07QHX1JW5 | | ASIN | B07QHX1JW5 | | Benefits | Conditioning, Hair Coloring, Moisturizing, Nourishing, Strengthening | | Best Sellers Rank | 1,424 in Beauty ( See Top 100 in Beauty ) 31 in Permanent Hair Colour | | Brand Name | Smart Beauty | | Colour | Black Blue Sapphire | | Container Type | Tube | | Country Of Origin | United Kingdom | | Country of origin | United Kingdom | | Customer Reviews | 4.0 4.0 out of 5 stars (7,412) | | Customer reviews | 4.0 4.0 out of 5 stars (7,412) | | Full Cure Time | 3E+1 Minutes | | Hair Color Permanence | Permanent | | Hair Type | All | | Item Form | Cream | | Item Type Name | liquid | | Item model number | Black Sapphire Blue Permanent Hair Dye | | Manufacturer | Smart Beauty | | Manufacturer | Smart Beauty | | Material Features | Cruelty Free, Natural, Vegan | | Material Type Free | Paraben Free, Resorcinol Free, Sulphate Free | | Number of Items | 1 | | Product Dimensions | 8.99 x 5.99 x 16.99 cm; 200 g | | UPC | 830577001519 | | Unit Count | 125.0 millilitre(s) | ## Product Details - **Brand:** Smart Beauty - **Colour:** Black Blue Sapphire - **Hair type:** All - **Item form:** Cream - **Material Type Free:** Paraben Free, Resorcinol Free, Sulphate Free - **Material feature:** Cruelty Free, Natural, Vegan - **Number of items:** 1 - **Package information:** Tube - **Product benefits:** Conditioning, Hair Coloring, Moisturizing, Nourishing, Strengthening - **Unit count:** 125.0 millilitre(s) ## Images ![Blue Black Hair Dye Permanent with Anti-Breakage Plex Hair Care, Vegan Hair Dye & Cruelty-Free, 100% Grey Coverage, Midnight Blue, For All Hair Types. Smart Beauty - Image 1](https://m.media-amazon.com/images/I/81lmWJlqS2L.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Best dye for covering Grey/white hair *by N***K on 8 February 2025* I'm on a journey to get my hair healthy again as it had started to go thin due to menopause. I used to bleach my roots every 8 weeks or so in order to have bright fashion colours ( pink/ purple ) , and with doing this a lot of hair at the nape of my neck and around my hairline had broken off. Since having ditched the bleach and the broken parts now growing back in nicely my hair was starting to look a bit drab as I have lots of white hairs at the root ( about 4 inches worth ). I was just using my usual semi permanent colours, but after about 3 washes the white hair was popping through again and sticking out like a sore thumb. I spent a good deal of time looking for purple colours on Amazon that cover grey/white hair. And I came across this one which is permanent. It's not going to do as much damage to my hair as bleach will as it is a conditioning based permanent dye so I'm so happy that I can now carry on having purple 💜 hair without struggling on how I'm going to cover my white hair and risking more damage to my hair. This hair dye is absolutely amazing, it is thick in consistency as it is a conditioning based permanent hair dye so trying to squeeze it from the bottle once mixed is hard work so next time I will put it in a bowl mix it and use a brush. The colour came out even all over and my hair didn't feel dry after so I'm happy that I am not doing damage to my hair. Highly , highly recommend this dye it is the best!. Update after having washed it 3 times , the colour has faded but it's still really vibrant and such a beautiful colour. I did find that the colour faded a lot more quickly than other permanent hair dyes do , as the vibrancy normally lasts a lot longer with other brands , but it faded to a nice lilac colour after about 6 washes , I wash my hair once a week for reference, so if you wash your hair more often then the colour will fade a lot quicker. ### ⭐⭐⭐⭐⭐ It works amazing *by Y***N on 30 March 2026* I read good and bad reviews. Mine is good is have quite a bit of silver hair and is nice and purple now. The rest of my hair is dark brown and is has a very nice purple tone. My husband used it to and his silver is not covered as well but his light brown hair looks quite purple. I believe it depends on hair porosity. ### ⭐ ONLY LASTS A COUPLE OF WASHES! *by J***E on 18 December 2022* I purchased two of these at the same time,but sadly won't be buying anymore. The colour turns out to be l9vely and vibrant and I loved it when i'd first used it. Unfortunately it completely washed out after only a couple of washes.I tried the 2nd pack i'd bought thinking maybe I hadn't applied it correctly or something(slthough I'm accomplished at hair dying)-but exactly the same thing happened,despite my using speciality shampoos for dyed hair. I was so upset by this as I loved the vibrancy of the colour,but since i'd paid nearly double what I usually pay for my usual "off the shelf"dye,I expected it yo have lasted for more than a week.It wasn't that it gradually faded either,it just completely washed out. I contacted the company's customer service to explain my issue,but I didn't find their attitude to be very accommodating. Firstly they implied that I may need to use more than one pack at once for longer or thicker hair,even though I explained to them that I had medium to fine short hair!. They then suggested that I purchase some of their temporary treatments to use alongside this supposed "permament"dye to maintain the colour longer-which I found to be a insulting suggestion as this one lasted so poorly,I doubted a temporary colourr would fare better. It's such a shame as like I've said the colour initially comes out beautifully vibrant and I loved it.However,i'd definitely recommend to anyone looking for a purple type colour to just stick with the better known brands that have a far cheaper price and definitely more longevity. ## Frequently Bought Together - Smart Beauty Blue Black Permanent Hair Dye, Vegan & Cruelty-Free, 100% Grey Coverage, Midnight Blue, Anti-Breakage Plex Hair Care, For All Hair Types - KISS Lift Up Complete Hair Bleach Kit with Revitalizing Plex Serum to Protect from Damage, Maximum Strength to Lighten Dark or Resistant Hair, Complete DIY 6-Pc Kit - Schwarzkopf Got2b Metallics Permanent Hair Color, M49 Smoky Violet --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/118652545-blue-black-hair-dye-permanent-with-anti-breakage-plex-hair](https://www.desertcart.vn/products/118652545-blue-black-hair-dye-permanent-with-anti-breakage-plex-hair) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-04-25*