Clairol Colour Gloss Up Conditioner Hot Espresso salon-inspired formula to keep your hot espresso brown colour fresh for longer. Clairol’s Colour Gloss Up, Temporary Colour Gloss is customizable to your desired level of vibrancy, as a different leave in time delivers the desired colour and shine. The perfect colour boost that brings your espresso brown colour back to life while adding shine & conditioning hair, all in one simple step! Just squeeze the tube and leave it on from 2 - 15 minutes. No Mix, No Damage.