Classic Shocking Blue Blue instructions can be found via

instructions can be found via the QR Code on the product or how to fit your Scarecrow Vampire Fangs

This colour dilutes to a gorgeous lilac on platinum hair when mixed with softer shades or Pastelizer

For the most vivid results

Mixing Tub

Classic Shocking Blue Blue instructions can be found viaShocking Blue is a dark cobalt blue hair dye. For best results, we recommend lightening hair to a very light cool toned level 9 blonde or lighter. All semi permanent blue hair colours can interact with yellow tones in bleached hair to create a green tint so make sure to do a strand test prior to applying all over to ensure you get the results you want! If you'd like to avoid a possible green undertone, you can add in a purple shade like Purple Haze to