Hair Growth
the acronym used to remember the three phases of hair growth
what is ACT?
the process of removing hair at the skin level
what is depilation?
removes hairs from the follicles; waxing or tweezing
what is epilation?
the club-shaped structure that forms the lower part of the hair root
what is the hair bulb?
the scientific study of hair and its diseases and care
what is trichology?
the second phase of hair growth, aka "transition" phase
what is catagen?
ancient method of hair removal originating in the Middle East; aka banding
what is threading?
what is sugaring?
the tube-like depression or pocket in the skin or scalp that contains the hair root
what is a hair follicle?
a group of symptoms that, when combined, characterize a disease or disorder
what is a syndrome?
the third and final stage of hair growth, aka "resting" phase
what is telogen?
the two types of permanent hair reduction
laser and IPL
hard waxes used to modify the melting point and increase strength of hard wax
what are candelilla and carnauba?
portion of the hair that extends or projects beyond the skin
what is the hair shaft?
the border of the lip line
what is the vermillion border?
the most important phase of hair growth for estheticians; results in less regrowth
what is anagen?
the use of direct current to permanently remove unwanted hairs
what is galvanic electrolysis?
additives used in soft wax
what are rosin and gum rosin?
the three types of hair found on the human body
what are lanugo, vellus, and terminal hair?
hair growth disorder caused by elevated levels of male androgens in the blood
what is hirsutism?
what is the anagen phase?
abbreviated LASER
light amplification by stimulated emission of radiation
technique used for soft wax only; reduces obvious line of demarcation between waxed and unwaxed areas
what is the blending technique?
the outermost, middle, and innermost layers of the hair shaft
what are the cuticle, cortex, and medulla?
excessive growth of terminal hair in areas that usually only grow vellus hair; aka "wolfman disease"
what is hypertrichosis?