METHOD FOR CARRYING OUT PHOTODYNAMIC HAIR EPILATION Russian patent published in 2006 - IPC A61N5/67 

FIELD: medicine.

SUBSTANCE: method involves removing hair from skin area to be subjected to epilation without mechanical injuries being caused to skin integrity 3 days before applying photodynamic hair epilation. Skin is degreased with a preparation containing no alcohol. Pulsating scanning laser radiation is applied to the skin area to be epilated. Radiation wavelength is 800-930 nm and frequency is equal to 140-160 Hz during 5-20 min under radiation power of 4-10 W per pulse and its duration being equal to 50-300 ns. The area to be epilated is covered with photosensitizing cream, gel or ointment containing 0.1-2% by mass of chlorine row photosensitizer selected from a group composed of Photolon, Radachlorine or Photodithazine or 0.1-1% by mass of porphyrin row photosensitizer selected from a group of Photogem, or Photofrin. After having exposed skin area under epilation covered with photosensitizer without light access during 3-6 h, photosensitizer residue is removed from the skin area without injuring epidermis and anesthetic management is carried out when needed. A region on skin surface under epilation is isolated with material radiopaque to laser radiation and the selected skin areas are treated with parallel light beam issued from square, triangular, rectangular, pentagonal or hexagonal shape stencil opening. The stencil edge is moved over the whole skin area under epilation. Wavelength is equal to 661-666 nm when using chlorine row photosensitizer or 630-633 nm when using porphyrin row photosensitizer with radiation power density of 20-80 J/cm². Epilation region area does not exceed 100 cm² during single photodynamic epilation session. Photodynamic epilation of the next skin region is carried out after all irritation signs have vanished from the previously treated region.

EFFECT: reduced risk of complications; stable cosmetic results.

4 cl