Topics: Trichology Quiz
The resting state of hair growth when the hair bulb has no attached root sheath is referred to as the:
A. active stage
B. telogen stage
C. anagen stage
D. catagen stage
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The process of hair turning grey is usually caused by:
A. the natural aging process
B. hair damaged at the papilla
C. hair fiber over 15 years in age
D. being exposed to excessive sunlight