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Hair Dye

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Special Effects Blue Mayhem


Blue Mayhem is an intense deep blue semi-permanent hair dye from Special Effects. This colour has fewer purple tones than some of the other Special Effects shades like Electric Blue.

  • 118ml
  • Conditioning colour
  • Semi-permanent
  • Not tested on animals
$15.00 (USD)
  • €13.50 (EUR)
  • £11.00 (GBP)
Out of stock
- More expected in 100 years.

To get the most from this vivid sapphire blue colour, you need to start with an even, pale blonde base. Although Blue Mayhem will cover slightly darker blondes, you’ll find that the colour appears to fade sooner if it hasn’t been applied to very light blonde hair. If you’re unable to bleach your hair to pale blonde, a darker blue like Electric Blue will give you better coverage.

Tip: If you dislike the slight violet tones of this colour, try mixing with Special Effects Fishbowl at a ratio of 2 parts Blue Mayhem to 1 part Fishbowl to produce a really beautiful true blue colour.


For best results, particularly with lighter shades, apply to hair that has been pre-lightened to pale blond. Apply to freshly washed (not conditioned), dry or damp hair. Apply using latex gloves. We recommend using a tinting brush to ensure even coverage. Work the dye into the hair for a few minutes and leave for at least 15 minutes (you may leave this dye on for longer as long as you cover your hair with plastic wrap or a shower cap to prevent it drying out). Rinse with warm water until the water runs clear.

For longer lasting colour, use a shampoo and conditioner for coloured hair.

  • If you have a question about this product, please contact us or ask in our forum.

  • Ingredients ⮣

  • Precautions

    Although these dyes do not contain the harsh chemicals of other dyes such as ammonia and peroxide, there is still a small chance that they could cause an allergic reaction. For this reason it is imperative that you do a strand and sensitivity test before using them. An ingredients list is available above and can also be found on the product’s packaging (ingredients list can sometimes be found under our sticker). NEVER use any of these products on eyelashes or eyebrows.

    As you would expect from a dye these colours can stain textiles, ceramic, wood and other surfaces as well as temporarily stain skin and nails so be careful to cover surfaces and wear gloves when applying the colour. Once used these products may also rub off your hair and skin and onto clothing and bedding. Although this usually disappears after washing it’s worth bearing this in mind. Staining to bathtubs, basins and showers can easily be cleaned using a bleach based cleaning product.

    Do not mix with peroxide.

    Colours may cause permanent staining to bleached or chemically treated hair. Tip: You can avoid staining on your skin by applying a layer of vaseline anywhere on your skin where dye may come in contact.

Reviews of Special Effects Blue Mayhem

  • I could not get this colour to work for me at all. I tried twice and both times got a solid true blue at the beginning, but an ugly purple-grey after one or two washes. I knew going into it that blue was a colour that required a lot of upkeep, but it faded much, much faster than any other blue and, in my opinion, was totally not worth it. I did have more success with it when it was mixed with other colours (like purple). Overall though, I wasn't impressed.
  • The colour of this dye is beautiful, I really really liked it. I found that it lasted 4 washes in my hair, which was good enough for me, because by that time it was time to bleach my roots anyways. I don't have a head of blue hair anymore, but when I do go back to blue, I'll use Blue Mayhem again.
  • I've used this several times and I like it. It does fade relatively quicker then I would have liked but that's ok because I change it alot. IT does really fade to a yucky grayish color which is the only downpoint I see.
  • The first few days it's a really great super-man type blue, but it quickly faded to a smokey violet color...very pretty, but not blue. :( And as it continues to fade it turns a weird gray. It's a beautiful color at first, but it doesn't last.
  • Like others say, a great royal blue color right away, but it does fade to a somewhat grungy murk pretty soon. What's odd is that it faded quickly, but at the same time, stained my (bleached) hair to the point that, after two high-volume bleach washes, I could still see a blue cast where it had been. I probably could have gotten the rest out, but my hair would have been a wreck.
  • This went grey in my hair right away! I had to dye over it with another brand the very next day.
  • After reading previous reviews, possibly not just my hair that doesn't hold this dye too long. After saying that, its been in my hair now for over 4 weeks, and i can't seem to shift my roots (which were bleached very very light) and they're dark purple. Stayed blue for a good 3 weeks. However, the rest of my hair (i'd say it was bleached pale yellow, maybe a few stronger yellow tones) faded much quicker, blue for about 2 weeks. However, after using this a few times, i've found the dye to be much more effective on very light bleached hair, left on a LONG time and with heat applied over clingfilm covered hair.
  • This is my favourite blue because, yes it does fade after 2 weeks, but at least it stays a gorgeous bright blue for those 2 weeks rather than turning purple or grey! I have bleached my hair to a very light blonde but it definately stays more blue for longer than other's I've tried. I just top it up every fortnight =)
  • I wouldn't recommend this dye just because it faded rapidly. After a week, my hair looked like it turned violet. Not the best.
  • I mixed this "Blue Mayhem" with "Blue Haired Freak" and I didn't like it. It was a neon blue purple color. My mom liked it. The only good things about this color are it last longer than my favorite Blue Haired Freak and when it fades it turns into a nice light purple.

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