METHOD FOR TREATING NON-ACNEIC OILY SKIN

• US 20140046241A1
• Filed: 12/12/2011
• Published: 02/13/2014
• Est. Priority Date: 12/13/2010
• Status: Abandoned Application

• Current Assignee: L'Oreal SA
• Original Assignee: L'Oreal SA
• Inventors: Pernot, Helene, Granger, Corinne
• Application Number:
  US13/992,950
• Publication Number:
  US 20140046241A1
• Time in Patent Office: Days
• US Class Current: 604/20
• CPC Class Codes: A61N 2005/0651 Diodes
• CPC Class Codes: A61N 2005/0652 Arrays of diodes
• CPC Class Codes: A61N 2005/0653 Organic light emitting diodes
• CPC Class Codes: A61N 2005/0654 Lamps
• CPC Class Codes: A61N 2005/0659 infrared
• CPC Class Codes: A61N 2005/0662 Visible light
• CPC Class Codes: A61N 2005/0663 Coloured light
• CPC Class Codes: A61N 5/0616 Skin treatment other than tanning
• CPC Class Codes: A61N 5/067 using laser light

Abstract

The present invention relates to a method for cosmetic treatment of non-acneic oily skin, comprising the step consisting in: exposing said non-acneic oily skin to a first quasi-monochromatic light of artificial origin having a dominant wavelength peak between 300 and 700 nm, better still between 400 and 650 nm, even better still between 560 and 620 nm.

Claims

1. A method for cosmetically treating non-acneic oily skin, the method comprising:

exposing the non-acneic oily skin of a subject in need thereof to a first quasi-monochromatic light of artificial origin having a dominant wavelength peak between 300 and 700 nm.

2. The method of claim 1, wherein a production of sebum is reduced by 8% at least and a population of P. Acnes is reduced by at least 7% by a modification of the modifying at least one nutritional condition for P. Acnes growth.

3. The method of claim 2, further comprising:

exposing the non-acneic oily skin of a subject in need thereof, to a second quasi-monochromatic light of artificial origin having a dominant wavelength peak between 700 and 1000 nm.

4. The method of claim 1, wherein the first quasi-monochromatic light is pulsed with a pulse having a duration of between 100 and 500 ms.

5. The method of claim 1, wherein the first quasi-monochromatic light is pulsed with an interpulse interval having a duration of between 50 and 200 ms.

6. The method of claim 1, wherein the first quasi-monochromatic light received by the non-acneic oily skin has a surface power density of less than or equal to 40 mW/cm².

7. The method of claim 1, wherein the non-acneic oily skin is exposed to the first quasi-monochromatic light for a duration of less than 20 minutes.

8. The method of claim 1, wherein the cosmetically treating is carried out at least once a day and at least one day per week.

9. The method of claim 1, wherein the cosmetically treating is carried out at least once a week and for a duration of between two and twelve weeks.

10. The method of claim 1, the method further comprising:

exposing the non-acneic oily skin of the subject in need thereof to a third quasi-monochromatic blue light.

11. The method of claim 1, wherein a light source of the first quasi-monochromatic light comprises at least one selected from the group consisting of an LED, an LED matrix, an OLED, a laser, and an incandescent lamp equipped with a dichroic filter.

12. The method of claim 11, wherein the light source comprises at least one quasi-monochromatic LED.

13. The method of claim 1, further comprising:

applying a cosmetic product to the non-acneic oily skin of a subject in need thereof, prior to the exposing.

14. The method of claim 1, further comprising:

applying a cosmetic product to the non-acneic oily skin of a subject in need thereof, after the exposing.

15. The method of claim 1, comprising a topical application to the non-acneic oily skin of a composition comprising 5-(n-octanoyl)salicylic acid.

16. The method of claim 3, wherein the second quasi-monochromatic light is pulsed with a pulse having a duration of between 100 and 500 ms.

17. The method of claim 3, wherein the second quasi-monochromatic light is pulsed with an interpulse interval having a duration of between 50 and 200 ms.

18. The method of claim 3, wherein the second quasi-monochromatic light received by the non-acneic oily skin has a surface power density of less than or equal to 40 mW/cm².

19. The method of claim 3, wherein the non-acneic oily skin is exposed to the second quasi-monochromatic light for a duration of less than 20 minutes.