Basic Hair Science
the scientific study of hair and its diseases
what is trichology
anchors hair to the skin cells and is part of the hair located at the bottom of the follicle below the surface of the skin
what is the root
acronym to remember hair growth stages
what is ACT
the process of removing hair by means of electricity, is considered the only true method of permanent hair removal
what is electrolysis
The method of using tweezers to pull hair out by the root one at a time
what is tweezing
very fine, soft hair
what is vellus hair
the part of the hair located above the surface of the skin
what is the shaft
the growth stage during which new hair is produced
what is anagen
This method uses direct current, which causes chemical decomposition of the hair follicle
what is galvanic electrolysis
what is shaving
the soft and downy hair found on a fetus
what is lanugo
a thick, club-shaped structure made from epithelial cells that surround the papilla
what is the hair bulb
the transition stage of hair growth
what is catagen
This method of electrolysis utilizes a high-frequency current to produce heat, which coagulates and destroys the hair follicle
what is thermolysis
a substance, usually a caustic alkali preparation, used for temporarily removing superfluous hair by dissolving it at the skin level
what is a depilatory
the longer, coarser hair found on the head, brows, lashes, genitals, arms, and legs
contains the hair follicle and its appendages
what is the pilosebaceous unit
the final, or resting, stage of hair growth
what is telogen
uses intense light to destroy the growth cells of the hair bulb
what is photoepilation
using cotton thread that is twisted and rolled along the surface of the skin, entwining the hair in the thread and lifting it out of the follicle
what is threading
a mass of epidermal cells forming a small tube, or canal
what is a hair follicle
a cone-shaped elevation at the base of the follicle, fits into the bu
what is the hair papilla
what is 1.25
a laser beam is pulsed on the skin, impairing the hair follicle
laser hair removal
is an alternative for those who have sensitive skin or who react to waxes with bumps and redness
what is sugaring