In the lab and under the microscope... 🔬 The✨crafting✨of COLOUR ALCHEMY. "The COLOUR ALCHEMY formula was a tricky one to nail due to the complex nature of the microprism technology. We tried and tested a bunch of ingredients – one by one – to determine which ones would be compatible with the technology and allow us to create the best colour-changing effects." – the science team @theunseen lab We tweaked the formula over time to bring to life the unique experience of the colour transformation for your hair, previously only seen in nature. Created in partnership with @schwarzkopfpro 📸: @lauradester