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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 1,072 reviews
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$13.99 Why this price?
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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. Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store

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: #189,119 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #1,410 in Hair Color


#1,410 in Hair Color:


Customer Reviews: 4.4 4.4 out of 5 stars (1,072)


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

This product is currently out of stock. Please check back later for shipping info.

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

  • 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

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

  • .
My daughter is liking this very much. Just wish it would last a bit longer before having to redye it. It starts washing off after 2 weeks instead of 4 how it says. It’s ok though at least it looks nice.
Reviewed in the United States on November 6, 2025 by Jose

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

  • 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

  • Easy to use
Color perfect. Will buy again I'm 78 yrs old. Senior fling. Lot of compliments even at church and at my seniors apartments
Reviewed in the United States on June 13, 2024 by bonnie giddings

  • My very favorite, non damaging, vegan hair dye. Can't recommend it enough!
I can not say how much I love Manic Panic. It is so nice to have a dye that is non damaging and vegan to use on your haoir and with so many cool colors you can use them separately or mix them for so many fantastic looks. I am a blond and it's usually hard to gef my hair to hold on to colors, but this lasts nearly a month, sometimes more and I simply can't recommend it enough! ... show more
Reviewed in the United States on December 29, 2017 by J. G. Christensen

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