Search  for anything...

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 997 reviews
Condition: New
Checking for the best price...
$15.49 Why this price?
New Year Deal · 14% off was $18.00

Buy Now, Pay Later


As low as $3 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE refund/replacement until Jan 31, 2026

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Jan 5
Order within 12 hours and 46 seconds
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

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.

Color: Mermaid


Package Information: Jar


Product Benefits: Hair Coloring; Blacklight Glowing


Brand: MANIC PANIC


Item Form: Cream


Is Discontinued By Manufacturer ‏ : ‎ No


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: #167,309 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #1,176 in Hair Color


#1,176 in Hair Color:


Customer Reviews: 4.4 4.4 out of 5 stars (1,002)


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jan 5

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


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

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

  • Worked Well
Used this in combo with other colors for a “peacock” scheme. Great value!
Reviewed in the United States on October 31, 2024 by Jillian Yohe

  • 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 Earthnut

  • 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 Chris

  • 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

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...