Clairol Colour Gloss Up Conditioner Play It Cool Blonde salon-inspired formula to keep your cool blonde 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 cool blonde colour back to life while adding shine & conditioning hair, all in one simple step! Just squeeze the tube and leave on for 2 - 15 minutes. No Mix, No Damage.