1. Glossary of terms.

Term	Definition
Alopecia	Loss of hair from head or body
Anagen hair	Active, growing hair
Anagen phase	Active growth phase of hair follicles (2 to 7 years)
Catagen phase	Involution phase of the hair follicle
Ferritin	Iron‐containing proteins that are widely distributed in animals, plants, and micro‐organisms. Their major function is to store iron in a non‐toxic bioavailable form
Follicular miniaturisation	The follicles produce hair that is thinner and thinner, until they either stop producing hair or produce hair that is so fine it is barely noticeable
Hepatotoxic	Chemical‐driven liver damage
Hyperandrogenism	Condition characterised by excessive production/secretion of androgens
Hypertrichosis	Excessive (terminal and vellus) hair in non‐androgen dependent body sites; varies in people with different ethnic background without any pathological findings
Hirsutism	Excessive hairiness on women in those parts of the body where terminal hair does not normally occur or is minimal ‐ for example, beard or chest hair
Ludwig scale	Classification of female pattern hair loss (FPHL) stages I to III (minimal, moderate, intense) (Ludwig 1977)
5‐alpha‐reductase	An enzyme that converts testosterone, the male sex hormone, into the more potent hormone, dihydrotestosterone
Sinclair scale	5‐point scale (1 = normal, 5 = advanced hair loss) used to assess FPHL (Dinh 2007)
Telogen hair	Dormant, inactive hair
Telogen phase	Resting phase of the hair follicle (3 months)
Telogen effluvium	Massive hair loss resulting from the early entry of hairs into the telogen phase
Terminal hair	Thicker, longer, and pigmented hair
Tincture¹	An alcoholic extract of a drug derived from a plant
Vasodilation¹	Widening of the blood vessels
Vellus hair	Short, fine, light‐coloured, and barely noticeable hair that develops on most of a person's body from childhood

Abbreviations: FPHL: female pattern hair loss.
 ¹Definition taken from: Martin 1998