Olaplex is a single active ingredientnew and revolutionary olaplex is a hair treatment designed to reconnect the disulphide sulphur bonds broken by the process of permanent hair colouring and lightening olaplex is free of silicones oils aldehydes and parabens this 2 part treatment radically strengthens and softens hair repairing damage and restoring suppleness and shine olaplex allows your colourist to go lighter and work on already damaged hair without any fear of breakage with stars