Rather than creating the tie-dye finish you might expect, the new top coats are designed to be shaken to mix the iridescent particles, colour and high-shine, transparent top coat for a candy-like veil finish. And then, after each use, the three phases in the bottle will return to their distinct layers - like a beauty chemistry experiment, if you will.
Available from May 1 at Selfridges and Brown Thomas, in four shades priced at £18 each.