A-Z Glossary
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| V VELLUS The soft downy hair found covering the body. VELLUS HAIRS Are soft, non-pigmented and rarely exceed a length of 2 cm due to the short anagen phase of cyclic follicular activity. VERTEX The top of the head towards the posterior position, including the area at which the hair grows in a spiral pattern. VESICULATION Blister formation caused by thermal damage. VIRGIN HAIR This term refers to human hair which is still in its original state as harvested from the grower, and which has not been permed, colored, or chemically processed in any way. It is carefully cut from the grower with the cuticle going in the same direction and preserved to maximize its special quality. Harvesting the hair in this manner takes more time, which contributes to the premium price of this hair. Virgin hair can be of any ethnic origin, but the best quality hair used in making wigs today is of Russian, Ukrainian, Belgian, and Turkish origin. This is the most expensive hair of all because it is not as plentiful as lesser quality hair. In spite of the high cost, top-quality Virgin European hair wigs are in high demand by those who wish to wear only the finest. VITILIGO Loss of pigment at small or large areas of skin/hairs. This is due to melanin failure caused by damaged melanocytes. This damage or destruction is thought to be associated with an immune system reaction, or genetic defect. The progress of the disease is unpredictable. Approx. 2% of the population is affected. VPL™ Variable Pulsed Light, trademark of Energis Technology, and describes the output from the ELITE System in terms of a precisely controlled sequence of pulses of light. |