In one aspect the invention is arranged to provide a hair treatment apparatus adapted to reduce the temperature of hair. This apparatus includes at least one thermal energy storage core arranged to draw heat out of hair wherein said at least one thermal energy storage core is arranged to cool hair to a temperature below 0 Celsius.

In one aspect the invention is arranged to provide a hair treatment apparatus adapted to reduce the temperature of hair. This apparatus includes at least one thermal energy storage core arranged to draw heat out of hair wherein said at least one thermal energy storage core is arranged to cool hair to a temperature below 0 Celsius.

A method is provided for preparing a hair dye color mixture. The method includes: accessing a control system having at least a processor, a memory, and user input controls, the memory configured to store ingredients of a hair dye color mixture, receiving user input from the user input controls to change one or more ingredients of the hair dye color mixture to a new product brand; matching the color of the hair dye color mixture using one or more ingredients of the new product brand, in response to the user input; and displaying the ingredients of the hair dye color mixture in the new product brand on a display.

A hair rollers assembly includes a pair of elongated hair rollers joined by a strap. The strap connects to an end face of each of the pair of elongated hair rollers.

A hair rollers assembly includes a pair of elongated hair rollers joined by a strap. The strap connects to an end face of each of the pair of elongated hair rollers.

Apparatus for curling hair comprises first and second side portions which are secured together in a spaced apart relationship via a connector portion. The connector portion is positioned substantially centrally with respect to each side portion. The connector portion has a length of not more than 20 mm. The side portions are fabricated from a material which is both resilient and thermally conductive.

Apparatus for curling hair comprises first and second side portions which are secured together in a spaced apart relationship via a connector portion. The connector portion is positioned substantially centrally with respect to each side portion. The connector portion has a length of not more than 20 mm. The side portions are fabricated from a material which is both resilient and thermally conductive.