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Lime Crime Full Coverage Unicorn Hair Dye, Dirty Mermaid - Damage-Free Semi-Permanent Hair Color Conditions & Moisturizes - Temporary Hair Tint Kit Has A Sugary Citrus Vanilla Scent - Vegan

  • Based on 12,125 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Oct 27
Order within 23 hours and 2 minutes
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Color: Dirty Mermaid (Seafoam Green)


Features

  • Dirty Mermaid Unicorn Hair Dye: Dyed and gone to Unicorn Heaven! Lime Crime Unicorn Hair is a DIY-friendly, semi-permanent color dye that transforms hair into vibrant colors... all from the comfort of your own home. Dirty Mermaid is a stunning seafoam green that will make your fantasy hair color dreams come true, and its sugary citrus vanilla scent will make your transformation even sweeter!
  • Why You Need It: Not only does our damage-free, vegan hair dye give you fun, vibrant color, but this formula also contains conditioning ingredients like fatty acids and vitamins that help to moisturize your hair and boost shine.
  • Before You Use It: Unicorn Hair deposits super-saturated, vibrant color to pre-lightened platinum to medium blonde hair and adds a tint of color to dark blonde and light brown hair. The life cycle of the color depends on the shade and condition of your hair and how often you wash it. Always do a patch and strand test before coloring your full head because results may vary.
  • Benefits: This formula is free of harsh chemicals like PPD, Peroxide and Ammonia. Lime Crime is certified by both Leaping Bunny and PETA, and we design, manufacture, and assemble quality products using globally sourced ingredients for high performance wear and strong color pay-off.
  • Never Blend In: Lime Crime is a Vegan & Cruelty-Free makeup and hair brand that aims to inspire and invites self-expression. Through our vibrant color products, we encourage all to explore their individuality, embrace their uniqueness and always stand out from the crowd. Find joy through color and re-imagine your boundaries with Lime Crime.

Color: Dirty Mermaid (Seafoam Green)


Package Information: Jar


Product Benefits: Moisturizing


Brand: Lime Crime


Item Form: Paste


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 2.5 x 2.5 x 3.75 inches; 0.09 ounces


Item model number ‏ : ‎ L001-84-0001


UPC ‏ :


Manufacturer ‏ : ‎ Lime Crime


Best Sellers Rank: #3,133 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #59 in Hair Color


#59 in Hair Color:


Customer Reviews: 4.4 4.4 out of 5 stars 12,125 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Oct 27

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Gorgeous, Vibrant Color That Lasts and Keeps Hair Soft
Color: Genie (Deep Violet Purple)
I have been using Lime Crime Unicorn Hair for over 3 years now and it has never disappointed me. The Chocolate Cherry shade is such a beautiful color that looks vibrant and rich right after coloring. The color payoff is excellent and it always leaves my hair looking bold and shiny. I’ve also tried Genie, Sea Witch, and Valentine, and every shade has turned out stunning. One of my favorite things about this dye is the scent. The sugary citrus vanilla fragrance makes the application process so much more enjoyable. It doesn’t smell harsh like other dyes, which matches perfectly with how gentle it is on my hair. After rinsing, my hair always feels soft and conditioned rather than dry or damaged, and I’ve never experienced breakage from using it. The dye is very easy to apply at home, whether with a brush or just gloved hands, and it washes out of my shower without leaving any stains. The color is long-lasting too. I usually go about 2 months before I need to redye, and even then it fades gradually into a softer version of the shade instead of looking patchy. Overall, this is hands-down the best semi-permanent dye I’ve ever used. The colors are vibrant, the scent is amazing, it’s easy to use, and it always leaves my hair in great condition. Absolutely worth the money for the quality and results. If I could rate it higher than 5 stars, I would. ... show more
Reviewed in the United States on September 2, 2025 by Christina

  • The perfect green!!
Color: Sea Witch (Rich Teal)
I’ve been trying to find a green colored dye that is more green than blue once you use it. I absolutely love Lunar Tides dyes, but my green would always come out more blue and fade down to a very obvious blue. This dye though!! It’s perfect! It’s the exact green I was looking for and I love it! It smells great, was easy to apply, and didn’t dye my skin afterwards. It would run in the shower when I would wash my hair, but it never transferred to my clothes or pillows. It also lasts a long time! This picture is after a month from when I first dyed it, no touch ups! My hair is dark brown, so I did have it lightened before applying the color. This is now my go to color and brand! ... show more
Reviewed in the United States on September 23, 2025 by Katlyn Katlyn

  • Works great on dark hair!
Color: Chocolate Cherry (Burgundy Red)
LOVE this color. It smells SO good and works well on dark hair. Only downside is it stains FAST. My shower had a pink tint to it until I used bleach bathroom spray on it twice, but that happens with most dyes! Second picture is a red I used (xmondo) but it didn’t show up well since I have dark hair. A few days later I used this and that’s the first picture! So vibrant! ... show more
Reviewed in the United States on October 4, 2025 by Amazon Customer Amazon Customer

  • Love it!
Color: Mystic (Electric Blue)
I usually use Rockabilly Blue but I've had good results with this brand in the past so I went with it this time. With this color works just like most of them do, the lighter your hair is the brighter it is but no matter what color you start with it does hold well. To get the color on the box your hair will need to be bleached white, otherwise it holds just as well but it gets duller & darker as the hair gets darker. I am predominately a level 8 but some tones are lighter some are darker because my last bleaching went bad and I do have a little gray in with natural brown roots so when I use unnatural colors it gives me an amazing variety of shade variation. I got a range of colors anywhere from bright bright blue like in the picture to a duller darker blue to a bluish overtone over my natural med. brown color that stands out like a blazing blue overcast in indoor lighting or outside. It's deeply pigmented and very comparable with Rockabilly but one big bonus, you get more because the bottle is much bigger so that earned it 5 full stars. My hair is still a work in progress and when it's finished I will be back to post results but so far it's downright amazing & I am very happy with this brand & this color so I decided to stop & order a couple more colors and get a bit more creative. It smells great and I'm happy with the product, the price, and the results. I like to put mine in then wrap it in saran wrap and set overnight & shower it out the next morning. It leave the hair super soft, smelling good and in good overall condition and doing it this way with 1 wash a week it lasts an amazingly long time. When mine arrived it was a bit runny so I suggest stirring it with something plastic before use to thicken it back up. I will update with a pic & final results when my other colors have arrived & I'm finished coloring. *If this review was Helpful to you please let me know!* ... show more
Reviewed in the United States on November 17, 2020 by LifePathin4D

  • Color not bright on hair needs to be reapplied after only a few washes
Color: Juicy (Fuschia)
Pretty color but even with bleaching I did not get the rich deep pink i was hoping for. I have had this problem with other hair colors if the base has a conditioner in it and this one seems to? The reason I suspect it does was the more I brushed it into the hair the color started to separate and looked white. ... show more
Reviewed in the United States on September 30, 2025 by Diane Pulley

  • Cool stuff. Periwinkle over an existing faded magenta.
Color: Peri Dust (Periwinkle)
Easy to use and I stained nothing doing a peekaboo. This was on some natural dark blonde, some faded magenta (some hot pink, some lighter pink) and a few strands that were already a pastel purple. Left on in foil and a plastic bag for about 1-1/2 hr. Total. Love the results. Probably wouldn't do anything much on my natural dark blonde but I bet my grays would take it. ... show more
Reviewed in the United States on September 7, 2025 by TR TR

  • Nice but doesn’t last
Color: Neon Peach
Love, love , love how easy this is to use and the easy clean up. However, the first time I shampooed a few days after coloring, the color faded right out. I had processed it for 35 minutes, and it looked great - not super bright, but I wasn’t looking for that. But after two washes, the color is barely visible. My goal is to color some gray and have an overall fun hair color without damaging my hair. ... show more
Reviewed in the United States on August 13, 2025 by EFGuth EFGuth

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