Laser Hair Removal Terminology





It’s crucial to understand the common terminology when it comes to laser hair removal techniques.  This will give you a clearer understanding of what the process entails.  It also removes most of the anxiety many people experience.  It can put you at rest to fully understand the words so you can ask intelligent questions.

Absorption – is the intake of one substance into a different one.

American bikini wax – is a basic bikini wax where hair is removed from each side of the panty line at the crest of the thigh.

Anagen – is the development phase in the hair cycle where a new hair is synthesised.

Active medium -  is the part of the laser that stores and  absorbs energy.

Brazilian bikini wax – a bikini wax where all of the hair is done away with in the pubic area, including the hair on the butt cheeks and labia.

Catagen – transitional point of a hair’s growth cycle, going on between the growth and resting phases.

Chromophore - a group of atoms in  a molecule that makes color by selective light absorption.

Coherent light are light waves that move in parallel in the same direction.

Dermis is just  the underlying or interior layer of the skin.

Dermal scattering is the alteration that happens between the laser’s spot size at the surface of the skin and the spot size deeper in the tissue.

Epidermis is the thin outmost layer of the skin that you are able to look at.

Excited states is the conditions of a physical system iwhere energy is higher than the least possible level.

Fissure is a cut or crack in the skin.

French bikini wax – much like is a bikini wax where all the hair is removed from the pubic area except for a streak of hair on the pubis.

Hair follicle bulb is the bulbous base of the hair follicle that houses the dermal papilla.

Keloids scrapes are elevated areas of fibrous tissue.

Melanin are grains of pigment that gives skin and  hair and its color.

Monochromatic light is a single wavelength, and appears as one color.

Nanometers are each one billionth of a meter.

Optical cavity is a part of the laser that holds the active medium.

Polychromatic light is comprised of light of several wavelengths that appear as different colors.

Pulse duration is the time of an single pulse of laser light, which is typically measured in milli-seconds.

Selective photothermolysis
is the selective directing of an area using a particular wavelength to soak up light into that target area sufficient to harm the tissue of the target while letting the surrounding area to stay relatively unaffected.

Spontaneous emission is the process of an activated atom, after holding extra energy for a fraction of a second, discharges its energy as another photon then falls back to its grounded state.

Spot size is the width of a laser beam.

Terminal hair is hair found on the scalp arms legs Alexa lay in pubic areas.

Vellus hair is typically fine, non-pigmented hair located on the face that is often referred to as peach fuzz.

Wavelength is the distance between 2 back-to-back troughs or peaks in a wave.

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