David John (@davidjohnla on Instagram) does consistently stellar work at Sally Hershberger LA.  This beautiful color and fresh shape caught our eye, once again, and we asked him to share his formula for success.

PROCESS 

Balayage formulas:

Highlight:  L'Oreal Studio Lightener plus 20 volume

Lowlight formula:  L'Oreal Dialight  6.3 + 9 volume

Tone with L'Oreal Dialight 10.12 plus 9 volume