Colour-changing hair dye reacts to the world around you

The FIRE hair dye, from The Unseen, is designed to be responsive to temperature fluctuations and is available in multiple colour ranges from bright red to subtle pastels. The data used to create the dye stems from the process of thermoregulation in the human skin and the colour change chemical reaction occurs in response to a certain stimuli - in this case, changes in the environment. When the temperature drops or rises, the carbon-based molecules at the core of the FIRE dye undergo a reversible reaction. Read more: