Correctors are mix hair colours, that are used for eliminating undesired untertones, for intensifying existing colour, for achieving middle tones and creating pastel colours.

Correctors are not hair colours that can be used on their own. They are used in combination with hair colours and colour developer, in strictly defined proportions, depending on the desired result shade.

In case these colours are applied separately, they will not provide desired result and will fade quickly.

Grey corrector is used for creating nuances on blonde hair and eliminating undesired yellow undertone.