The most common type of distribution used to sculpt increase-layered forms is:

• A. Shifted
• B. Natural
• C. Directional
• D. Perpendicular

Answer: (D)

When sculpting increase-layered forms, you want to create lift and defined separation so each successive layer sits above the previous one, producing longer lengths as you move through the form. Holding the hair perpendicular to the scalp (at about 90 degrees) gives maximum elevation and removes weight evenly, which is ideal for building those clear, increasing layers around the head. This perpendicular distribution makes the layers more visible and distinct, giving the characteristic stacked look of an increase-layered silhouette.

Using natural distribution would let the hair fall with its natural weight, resulting in softer, less defined layers. Shifted distribution leans the hair off to one side, which can create asymmetry rather than even layering. Directional distribution directs the hair in a specific direction for texture or flow but doesn’t inherently produce the uniform lift and progressive length that perpendicular distribution achieves for this form.