Perfect 10 is hair colour so incredibly quick, gorgeously glossy and technologically advanced. And it’s earning accolades for beauty and science alike. Perfect 10 is the first product to use Clairol’s breakthrough formula that does its job in just 10 minutes. Perfect 10 is less damaging to the hair surface as its unique colour crème formula contains active ingredients that work best at a lower, gentler ph, so it preserves the hair’s natural coating.