The World’s First Colour-Changing Hair Dye
Lauren Bowker is the owner of a company named The Unseen, and she created a never-before-seen hair dye that changes color depending on the temperature of the surroundings. The hair dye is called FIRE and is available in multiple shades ranges from bright red to more subtle colors. The application of the dye is said to be semi-permanent, lasting over a few washes.
More info: seetheunseen.co.uk