Andreas Kurkowitz's colouring tutorial is an essential technique to successfully cover resistant white hair (grey hair).
Charmaine Piche’s tutorial covers the basics of correcting highlights. Charmaine performs this technique on half the head. This can also be performed on a whole head with different sectioning.
Bruno Elorrioroz’s colouring tutorial begins by removing the all over colour using back to back sectionsbefore applying a deep orange/red all over base colour. The final result is a dark blonde with a rich red/orange tone to perfectly complement Charlotte's skin tone and eye colour.
Tracy Hayes' training head colour correction tutorial tackles a common problem - bleach growing out and a very large area of re-growth