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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)
  • €13.00 (EUR)
  • £11.00 (GBP)
Out of stock
- More expected in 2 weeks.

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.

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