Hair removal using a contaminant matched to a laser

Surgery – Instruments – Light application

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606133, A61B 1736

Patent

active

060630744

ABSTRACT:
A device and process for the permanent removal of unwanted human hair. Hair on a section of skin is contaminated with a substance having high absorption of a frequency band of light. The skin is illuminated with light at this frequency band at sufficient intensity and duration to kill the follicles or the skin tissue feeding the hair. One embodiment to produce death of the follicles or the skin tissues feeding the hair is by photochemical reaction.

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Porphyrins in Tumor Phototherapy --Andereoni 1984 --pp. 143-155.
Investigation and Therapy in Dermatology A. Anders, et al --Conf. Laser 77 Optics-Electronics Jun. 20-24, 1977).

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