Method and apparatus for treating pseudofolliculitis barbae
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United States of America Patent
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Issued Date -
Nov 18, 2004
app pub date -
Feb 19, 2004
filing date -
Feb 19, 2003
priority date (Note) -
Abandoned
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Abstract
Methods and apparatus for hair treatment are disclosed which comprise applying electromagnetic radiation (EMR) to a skin treatment area to deposit energy in one or more hairs so as to modify a shape and/or chemical structure of at least a portion of the hairs. The applied radiation can cause heating of the hair tips, so as to modify their shape, e.g., reduce sharpness of the hair tips. Modification of the hair can involve heat-induced changes to the shape, composition, or function of the hair tip, hair shaft, and/or hair matrix that make the hair less capable of re-entering the skin. The methods and apparatus can treat and/or prevent pseudofolliculitis barbae (PFB) in the treatment area. A method is also disclosed for managing hair growth using wavelengths between 1200 nm and 1400 nm.
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