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IDH No. 2586175

Bringing you the latest hair colour trend – A temporary, thermochromic colour gel from THEUNSEEN COLOUR ALCHEMY. For a prismatic, iridescent hair colour effect that comes to life in response to temperature and light. Suitable for dark hair bases between 1 and 6.

Product Details

The prismatic, responsive hair colour.

Key benefits

  • 03 Borealis is a temporary hair colour shade inspired by the Northern Lights
  • Heat-reactive hair colour supported by thermochromic technology
  • Prismatic, holographic hair colour effect responds to light as well as temperature
  • Crystal formula replicates the visual effect of a prism, with each shade scattering the light in a range of kaleidoscopic hues


Thanks to encapsulated organic substances adhering to the hair surface like micro prisms, THEUNSEEN COLOUR ALCHEMY professional hair products are formulated to create dimensional reflections. The holographic hair colour hues are responsive to temperature and light, and change within a pre-defined spectrum.



  • Brand

    Colour Alchemy (P) - SB

  • Product dimensions

    Height 107 mm
    Width 74 mm
    Depth 63 mm

  • Product weight

    0.183 kg

  • Ingredients

    Aqua (Water, Eau), PEG-32, Methylbutylphenyl Decyloxybenzoate, Methylbutylphenyl Octyloxybenzoate, Methylbutylphenyl Hexyloxybenzoate, Propylene Glycol, Gelatin, Acacia Senegal Gum, Methylbutylphenyl Heptylbiphenylcarboxylate, Methylbutylphenyl Pentylbenzoate, VP/VA Copolymer, Polyacrylate Crosspolymer-6, Glycerin, Sodium Benzoate, Sodium Methylparaben, Panthenol, Parfum (Fragrance), Hydrolyzed Vegetable Protein PG-Propyl Silanetriol, PEG-8, Disodium Pyrophosphate, Acid Red 92, Phenoxyethanol, t-Butyl Alcohol, Biosaccharide Gum-4, Potassium Sorbate, CI 42090 (Blue 1), CI 17200 (Red 33) Read more Read less

Tutorials & Instructions

The prismatic, responsive hair colour.

How to use

Use protective gloves. Apply a fine layer of the desired colour gel shade evenly onto dry, clean hair by using a brush, sponge or with your hands and distribute with a comb. Blow-dry the hair to activate the colour changing hair dye. Please ensure no finishing product is used on top of the Colour Alchemy hair colour product, other than those recommended. Do not rinse. No development time needed. Avoid freezing.


Avoid contact with eyes. Rinse immediately if product comes into contact with them. Keep out of reach of children.