Summery Sandy Blond. Natural Level: 7 Formula A: Wella Koleston Perfect 8/38 + 30-volume developer Formula B: Wella Blondor + 30-volume developer APPLICATION 1. Apply “background highlights” with Formula A; weave bold slices throughout the head, apply the formula, process, rinse and dry the hair. 2. Apply another set of highlights around the face frame layer, throughout the crown and on the ends with Formula B. 3. Process to a pale, buttery blonde shade.