Table 1. Definitions for the dandruff grade scoring used to assess severity of scalp dandruff.

Grade	Severity of adherent scalp flaking
O	Perfect, healthy scalp. Uniform texture, no surface flakes.
A	Minimal dry powdery flakes.
B	Small flakes at least partially adhered to the scalp.
C	Moderate flakes, loosely attached to the scalp. Scalp surface irregular and white.

In total 65 subjects, male (n = 25, 11 Healthy and 14 Dandruff) and female (n = 40, 19 Healthy and 21 Dandruff) subjects, between the ages of 20–63, completed the study.