The first at-home treatment in the much-hyped Olaplex haircare system, Olaplex No. 3 Hair Perfector is a concentrated pre-shampoo conditioner that strengthens the hair from within, reducing breakage and improving its look and feel. Harnessing an exclusive active ingredient that repairs strands at cellular level, Olaplex 3 essentially seeks out damaged bonds in the hair and repairs them to transform your strands into a silky-soft, healthy mane. So much more than your average conditioner, this once-a-week treatment resurrects broken strands, undoing damage caused by regular colouring, bleaching and heat styling. Use before shampooing, applying a generous amount from scalp to ends and leaving on for at least 10 minutes - but the longer you leave it, the more magical the results - then rinse out for salon-worthy deep conditioning. A tip from Olaplex devotee Kim Kardashian, use the No. 3 Hair Perfector as an overnight leave-in treatment and you can expect jaw-dropping results come your morn