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🎨 Own Your Shade, Own Your Story
Smart Beauty’s Permanent Blue Black Hair Dye delivers a rich, long-lasting color with 100% grey coverage in just 30 minutes. Infused with a protective plex treatment, this vegan, cruelty-free cream strengthens and nourishes all hair types while providing a mess-free, easy application. Ethically crafted in the UK, it’s the perfect choice for professionals seeking bold, resilient color with a conscience.
















| ASIN | B07QHX1JW5 |
| ASIN | B07QHX1JW5 |
| Best Sellers Rank | #20,164 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #206 in Hair Color |
| Brand Name | Smart Beauty |
| Color | Blue Black |
| Container Type | Tube |
| Customer Reviews | 4.0 4.0 out of 5 stars (6,965) |
| Full Cure Time | 30 Minutes |
| Hair Color Permanence | Permanent |
| Hair Type | All |
| Item Form | Cream |
| 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, Sulfate Free |
| Number of Items | 1 |
| Product Benefits | Conditioning, Hair Coloring, Moisturizing, Nourishing, Strengthening |
| Product Dimensions | 3.54 x 2.36 x 6.69 inches; 7.05 ounces |
| UPC | 830577001519 |
| UPC | 830577001519 |
| Unit Count | 4.1 Ounce |
L**O
So far so good!
I’ve had purple hair since 2018 so I would say I have years of experience with a variety of bright color hair dyes from many different brands. My natural hair color is medium dark brown, but I’ve had gray hair since I was a kid and 30-35% of it is gray. Semi-permanent color doesn’t really cover my grays, so I had to use Ion Permanent Brights in purple for my roots, and ArcticFox for the rest, which after trying MULTIPLE brands, this was the one that worked the best for me. I’d still had to co-wash my hair only once a week to make the color last as long as possible, re-color it once a month, and re-touch my roots every 6-8 weeks depending on growth. I love my purple hair but the maintenance process is exhausting! I NEEDED to find a more permanent solution. I stumbled upon Colour-Plex in Amethyst so I decided to give it a shot. I washed my hair with a clarifying shampoo before applying to get rid off as much of the previous color as possible. First impression: Colour-Flex was very easy to mix, it smelled good, application was smooth, and there was just enough product to fully cover my entire shoulder length thick hair. The recommended processing time is 25 minutes, but I left it on about an hour before washing it with cold water using only conditioner and rinsed it until the water was clear. I have to say that I’m very impressed with the results and I like it so far! Once my hair dried, I noticed that my grays were completely covered and it deposited enough color on the rest of my hair so I didn't need to use a color mask after to get it to the shade I like. The color is a deep purple with blue undertones that looks almost black inside and bright purple in natural light, my hair smells amazing and it is sooo soft! Also, I noticed that my hands and nails weren’t stained after styling it, which is a problem I’ve dealt with my previous method. It might be too soon to tell, but I’ll comeback with an update after wash day.
K**R
Works like intended
Showed up decent in my dark brown hair. The red looks beautiful in the sun or light. Easy to use. Lasts a few months in my hair easily. Not hard to clean up if she gets anywhere, like in the shower when rinsing.
L**O
Product stripped my color from most of my hair, but is vibrant on the roots.
UPDATE: I have only washed my hair twice since I used this product letting it sit on my hair for 30 minutes just like I was instructed and here are the latest pictures. I read the directions and did exactly step-by-step. What they told me to do. I have extremely purple roots in places and the rest of my hair was stripped of all of its color. It also dried my hair out so much I had to layer it and now I have a mullet. The last photo was what the color looked like before I used this hair color. I didn’t know it would strip out all of that violet color that I had. I just wanted to cover my roots as you can see in the three prior photos, my hair is brownish silver now with purple roots. I am extremely unhappy.
P**L
Color
My hair is naturally white but does occasionally get the blonde color infiltrating my hair so I tried this. It worked well but did leave my hair a little dry so make sure to use a conditioner
A**R
Solid 3-3.5 Stars - Not Bad
Giving a solid 3-3.5. I never leave reviews, but some of the reviews on here seem a bit ignorant, so I wanted to make sure that people knew what they were getting into and to read the instructions and other reviews... 1) I used metallic rose gold, and the woman on the package pictured here has different colored hair vs the woman on the package I received. Not a big deal, but I may not have purchased. 2) I said scr*w it and went for it anyway. It's a bit darker, but the color is actually nice and it will fade some. This is not a pastel color initially, or at least it isn't on me, and the ends of my hair are straight up bleached. 3) YOU HAVE TO CUT THE TIP OFF THE BOTTLE TO GET THE COLOR OUT. My package noted this, but some people I guess didn't read the instructions?? 4) It says you don't need to condition, but I indeed conditioned afterward as my hair did not feel soft at all. Felt fine after conditioning and didn't change the color. 5) It didn't cover my grey hairs, which was the most disappointing part for me as that is why I bought it. I had been using the Moroccanoil hair color depositing mask (which works great in my opinion for temporary color), but it didn't cover greys, and it legit says it will in the description. I left it on for the full amount of time, but I still have some greys poking out at my roots, which is making me crazy because I tried to really scrub it in there. It looks like they picked up a tinge of color but nothing compared to the rest of my hair. 6) THIS IS NOT MEANT TO BE PERMANENT! It is only supposed to last a few weeks. Buy permanent dye if you want it to last longer or buy the Moroccanoil mask if you want to keep refreshing. All in all, I think it went well - just wish those pesky grey were covered better, and I'd bump to 4 stars. If you don't like it, it's only temporary.
C**H
Stubbornly brown hair woes cured.
Does the trick if you’re looking for something with a little more oomph and have darker hair already that just hates fun colors. Loved the color, it actually lasted every bit as long as I wanted! I just wish they had included some way to save unused dye because my hair was so short at the time of using I barely needed any, i felt awful wasting it.
K**H
I have previously had my hair dyed red by a professional, but being unable to get to a salon again during these times, I took the chance to touch up my hair at home. I also decided I wanted something more orange-red than the dark-red I had. This is definitely a bright orange shade, but after a few washes fades down a bit. I love it and have already ordered again.
C**T
Tolle Haarfarbe schnelle Lieferung sehr zufrieden
A**.
Tolle Farbe, lässt sich leicht auftragen. Ich hatte vorher schon intensives rot und es nicht mehr zum Frisör geschafft. Ich hab zuerst den Ansatz gefärbt, dann die Spitzen. Es ist schön einheitlich geworden, man sie keinen Unterschied. Bin sehr Happy aktuell! Ich bin gespannt, wie lange die Farbe hält. Update: ein Monat ist seit dem Färben vergangen und die Farbe ist nach wie vor toll. Ich musste nicht einmal auffrischen! Ich bin wirklich begeistert!
D**D
bon produit
N**A
Gute Haarfarbe mit sehr schönem blaustich- genau das was ich brauche
Trustpilot
2 days ago
3 weeks ago