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MANIC PANIC Classic Mermaid Semi Permanent Hair Color - Neon Ocean Blue Hair Dye for Women & Men That Lasts 4-6 Weeks - Vegan, Ammonia & Cruelty-Free - Create & Mix Custom Shades (4oz)

  • Based on 1,080 reviews
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Availability: Only 10 left in stock, order soon!
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Arrives Wednesday, Sep 16
Order within 23 hours and 50 minutes
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Color: Mermaid


Features

  • Mermaid Hair Color - Mermaid is a cool ocean-blue neon shade with slightly green undertones. This high-pigment semi permanent hair dye delivers vibrant, long-lasting color that lasts 4-6 weeks, making it perfect for DIY transformations and salon applications.
  • Customizable and Mixable Formula - Create unique, personalized shades by mixing with other MANIC PANIC colors or our Pastel-izer to create soft trendy pastel hues. High Voltage is the perfect semi permanent hair color for women and men who want to dye hair without using developer.
  • Best Results on Pre-Lightened Hair - This temporary hair color works best to color hair that is a pre-lightened level 9 or 10 blonde. Use our Flash Lightning Bleach Kit to lighten hair before dyeing for best results. It can also be used as a hair dye for dark hair to achieve deeper shades.
  • Conditioning and Resealable Formula - This semi-permanent hair color is formulated with nourishing ingredients to deeply condition hair, leaving it soft, hydrated, and smooth. The resealable tub allows for multiple uses.
  • The Manic Manifesto - Manic Panic's hair coloring products are always Cruelty Free and Vegan - tested on celebrities, not animals! This vegan hair color is also ammonia and PPD-free, gluten-free, phthalate-free, and PETA accredited.

Description

Mermaid Mermaid is a cool ocean-blue dye with slightly green undertones. Mermaid even glows under a blacklight when hair is lightened to the lightest level 10 blonde before use. 1. Wash hair with a deep cleansing/clarifying shampoo. Do not condition. 2. Dry hair with a blow dryer to make sure the hair is extremely porous. 3. Put on gloves and apply Manic Panic Hair Color using a tint brush making sure hair is thoroughly saturated. 4. Comb through the hair color to make sure it is evenly applied. The cream may become slightly frothy. 5. Cover hair with a plastic cap and leave on for 30-45 minutes. For more intensity, add heat. 6. Rinse with cool water away from your face and body until water runs clear. Do not shampoo. 7. Style as desired. To prevent color transfer or bleeding, always make sure your hair is completely dry. Pro Tip: Use a hair dryer to evenly apply heat for 5-10 minutes of your processing time. This will help to open up the cuticle and allow the Manic Panic hair color to better penetrate the hair strand. Make sure to allow the hair to cool completely before rinsing out color.

Product Dimensions ‏ : ‎ 2.36 x 2.36 x 2.36 inches; 4.2 ounces


Item model number ‏ : ‎ ZJ-HCR11025


UPC ‏ :


Manufacturer ‏ : ‎ MANIC PANIC


Best Sellers Rank: #91,946 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #705 in Hair Color


#705 in Hair Color:


Customer Reviews: 4.4 4.4 out of 5 stars (1,080)


Color: Mermaid


Container Type: Jar


Product Benefits: Hair Coloring; Blacklight Glowing


Brand Name: MANIC PANIC


Item Form: Cream


Hair Type: Normal


Number of Items: 1


Manufacturer: MANIC PANIC


UPC: 787734537872 612600110258


Global Trade Identification Number: 58


Recommended Uses For Product: Hair coloring at home, Salon use, Following instructions for best results


Suitable Hair Color: Light Blonde


Item Weight: 4.2 ounces


Model Number: ZJ-HCR11025


Manufacturer Part Number: HCR 11025


Material Features: Vegan


Material Type Free: Ammonia Free


Hair Color Permanence: Semi-Permanent


Unit Count: 4 Fluid Ounces


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Sep 16

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


  • Fun colors
Very easy to apply. LOVE THE COLORS AVAILABLE.
Reviewed in the United States on June 6, 2026 by lisa

  • Great color, vibrant
Vibrant and good staying power, nice color.
Reviewed in the United States on April 4, 2025 by Kiki

  • Really enjoyed this.
I used Ultraviolet and Mermaid for this ombre - both super easy to work with, blended beautifully, and were initially very saturated. I bleached and toned to white first and left it on (plastic-wrapped) for about four hours. Mermaid stayed bright a lot longer than Ultraviolet; both stained everything else they came in contact with. I needed most of the jar of each color - both sides are shaved, but what's left is very thick and coarse. I would buy Mermaid again but not Ultraviolet based on how quickly it faded - there's not enough in there for it to be worth it. ... show more
Reviewed in the United States on August 29, 2020 by Chris

  • Nice color
I love Manic Panic dyes, they last just the right amount of time for someone who likes to change colors frequently. My only complaint is that the color I chose was meant only for use on the whitest of white hair, and not for my partially white, and partially gray head, but then that is my fault for not getting the appropriate shade to work with what I have. I usually get dark greens, blues, or purples, and they work fantastic, but now I know exactly what shades will cover, and what shades won’t. ... show more
Reviewed in the United States on December 26, 2019 by W. W.C.

  • Manic panic it’s the best!!
This color is amazing to change the colors of your hair! Manic Panic is the best brand in my opinion... I always use blue and green to make incredible looks, they have many shades and moisturize your hair super hien every time you use them
Reviewed in the United States on September 1, 2025 by Rolo

  • Mermaid is a blue shade
I was looking for a bluish green. I got Mermaid but it was more blue than green. I also am looking for a dye that will stick to my virgin unbleached gray hair. This dye worked better than all the other dyes I've used, but it was still pastel. It was more pigmented than Arctic Fox, Overtone, Keracolor, Colorista, and Punky Color. Update: Enchanted forest was essentially the same color, but more pigmented. I got a good blue iout of it. See comparison pic for the pigmentation difference. ... show more
Reviewed in the United States on April 2, 2023 by Earthnut

  • One of my favorite colors
I love this color and will buy again. It fades quicker on me then I woukd like but I have yet to find a brand that doesn't so I don't blame them. As far as the many i have tired this one is up there In what longevity I do get.
Reviewed in the United States on June 5, 2020 by Stephanie stafford

  • Great product
Great product, fast shipping
Reviewed in the United States on September 11, 2025 by Jonie Toler

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