Category: I

Tests that produce pictures of areas inside the body.  

Occurs when irritating substances temporarily damage the epidermis.  

Light at either end of the visible spectrum of light that is invisible to the naked eye.  

Also known as inverted braid or French braid; a three-strand braid that is produced with an overhand technique.  

Guideline that is inside the haircut rather than on the perimeter.  

A medical device that uses multiple colors and wavelengths (broad spectrum) of focused light to treat spider veins, hyperpigmentation, rosacea and redness, wrinkles, enlarged hair follicles and pores, and excessive hair.  

Hairpiece that has openings in the base through which the client’s own hair is pulled to blend with the hair (natural or synthetic) of the hairpiece.  

Substance that starts the chain reaction that leads to the creation of very long polymer chains.  

The tacky surface left on the nail after a UV gel has cured.  

Infrared light has longer wavelengths, penetrates more deeply, has less energy, and produces more heat than visible light; makes up 60 percent of natural sunlight.