Patent · US Active

Method for hair removal

US8235974B2 · kind B2 · utility

0Cited by

3References

18Claims

0Family size

Assignee

ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL) · CH

Inventors

Georges Wagnieres · Morges, CH
Norbert Lange · Glinde, DE
Nora Dognitz · Lausanne, CH
Denis Salomon · Lancy, CH
Hubert van den Bergh · Goumoens-la-Ville, CH

Key dates

Filing date	Nov 15, 2002
Grant date	Aug 7, 2012
Priority date	—
Expiry date	Jul 4, 2028

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61Q9/04
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A method for hair removal from a skin area by selective photo-inactivation of the pilo-sebaceous apparatus using derivatives of ALA with alkylene-glycol chains. Selectivity of the method is further enhanced by treatment of the epidermis by agents reducing PpIX levels in the epidermis. Side effects are diminished by using short drug/light intervals.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.