EP3379996A1 - Verfahren zur untersuchung der wirkung von kosmetika auf der haut - Google Patents
Verfahren zur untersuchung der wirkung von kosmetika auf der hautInfo
- Publication number
- EP3379996A1 EP3379996A1 EP16794587.2A EP16794587A EP3379996A1 EP 3379996 A1 EP3379996 A1 EP 3379996A1 EP 16794587 A EP16794587 A EP 16794587A EP 3379996 A1 EP3379996 A1 EP 3379996A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- skin
- cosmetic preparation
- camera
- cosmetic
- melanin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
- A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
- A61B5/443—Evaluating skin constituents, e.g. elastin, melanin, water
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0062—Arrangements for scanning
- A61B5/0064—Body surface scanning
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0077—Devices for viewing the surface of the body, e.g. camera, magnifying lens
Definitions
- the present invention relates to a method for investigating the action of active ingredients in a cosmetic preparation applied to the skin, to the melanin content in the skin, characterized in that the cosmetic preparation is applied to the skin, the skin treated with the cosmetic preparation Light irradiated whose spectrum includes the absorption band of melanin in a range of 280-400 nm and during this irradiation, the image of the skin is taken with a camera, the camera with a UV band pass filter with a wavelength band in a range of 280-400 nm is equipped.
- tanning products are based on active ingredients that affect the melanin in the skin and either stimulate its synthesis or hinder it destroy the melanin.
- the object of the present invention to develop a simple method with which the effectiveness of individual whitening or tanning agents in preparations when applied to the living skin can be determined.
- the object is achieved by a method for investigating the effect of active ingredients in a cosmetic preparation applied to the skin, to the melanin content in the skin, characterized in that
- the skin treated with the cosmetic preparation is irradiated with light whose spectrum includes the absorption band of melanin in a range of 280-400 nm and during this irradiation the image of the skin is taken with a camera, the camera having a UV band-pass filter is equipped with a wavelength band in a range of 280-400 nm.
- the brightness of the images taken with the camera is related to the brightness of images (or images) of untreated skin
- the UV bandpass filter Baader U Baader Planetarium GmbH (HWB 60nm, central wavelength 350nm), in combination with the camera EOS1200D from Canon can be used for the measurements.
- this camera requires the antialiasing filter in front of the camera sensor to be removed.
- the camera is set in picture mode Monochrome.
- the determination of the gray scale tones of the images i.e., the brightness of the images or image sections
- image analysis using the program ImageJ platform-independent image processing and image processing
- Image processing program, program and source code are public domain
- the active compounds are selected from the group of compounds which stimulate melanin synthesis, block melanin synthesis or destroy melanin. It is preferred according to the invention for the active compounds to be selected from the group of the compounds of the hydrazide derivatives, the thiazolidines, the heteroalkylamidothiazoles, 2-isopropyl-5-methylcyclohexanecarbonyl-D-alanine ethyl ester [synonom: (R) -2 - [( (1R, 2S, 5R) - 2-isopropyl-5-methylcyclohexanecarbonyl) amino] -propionic acid ethyl ester, 8-hexadecene 1, 16-dicarboxylic acid, the morpholino derivatives, the alkylamidothiazoles, licochalcone A, the piperazines, the aromatic amidothiazoles, 2-isopropyl-5-methyl-cyclohe
- Ascorbic acid Ascorbic acid, pyrimidines and purines, as well as plant extracts containing one or more of these compounds, or white tea extract.
- the process according to the invention is advantageously characterized in that the cosmetic preparation was repeatedly applied to the skin over several days or weeks before the examination ii) and applied as a cosmetic.
- cosmetic preparation is a cream or lotion.
- Preparation is an emulsion.
- Embodiments of the method according to the invention that are advantageous according to the invention are characterized in that the illuminance of the light on the skin is from 0.25 Wm -2 to 40 Wm 2 .
- the process according to the invention is advantageously carried out by the amount of cosmetic applied being from 0.8 to 2.0 mg / cm 2 .
- a test set-up for determining different product effects consists of: a special DSLR camera with the antialiasing filter removed
- a lens e.g., Canon Macro Lens EF 100mm
- a UV bandpass filter e.g., Baader U-Filter 320-380nm
- UV illumination sources eg EUROLITE LED IP FL-30 COB UV
- Repro tripod eg Kaiser Reproplacer RSX with Reproarm RTX 5512
- the structure provides that the lighting units are mounted on the left and right of the tripod with an orientation on the center of the tripod plate. The distance of the lights to the test area is approx. 35 cm.
- the camera with lens and UV bandpass filter is attached to the repro arm and is about 55 cm away from the test area.
- the standardized melanin elevation on the areas to be examined was induced by the induction of postinflammatory hyperpigmentation (PIH) by means of the suction blister technique.
- PHI postinflammatory hyperpigmentation
- a quantity of approximately 2 mg / cm 2 of the respective product was then applied twice a day over a period of 12 weeks and distributed evenly with one finger.
- a measure of the melanin content of the skin is the average gray value of the photographed areas.
- An image manipulation program e.g., ImageJ
- ImageJ image manipulation program
- a defined area is evaluated which corresponds to the area size of the PIH. Pictures will be taken after the twelve-week treatment period.
- the corresponding delta E values are shown as a measure of the perceived color difference between a treated area with PIH and an untreated area of skin without PIH in the immediate vicinity.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Dermatology (AREA)
- Cosmetics (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015223395.2A DE102015223395A1 (de) | 2015-11-26 | 2015-11-26 | Verfahren zur Untersuchung der Wirkung von Kosmetika auf der Haut |
| PCT/EP2016/077045 WO2017089131A1 (de) | 2015-11-26 | 2016-11-09 | Verfahren zur untersuchung der wirkung von kosmetika auf der haut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3379996A1 true EP3379996A1 (de) | 2018-10-03 |
Family
ID=57286476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16794587.2A Withdrawn EP3379996A1 (de) | 2015-11-26 | 2016-11-09 | Verfahren zur untersuchung der wirkung von kosmetika auf der haut |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3379996A1 (de) |
| DE (1) | DE102015223395A1 (de) |
| WO (1) | WO2017089131A1 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030086712A1 (en) * | 2001-11-08 | 2003-05-08 | Kenneth Merola | Method of promoting skin care products |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7291340B2 (en) * | 2005-12-29 | 2007-11-06 | Elc Management Llc | Extracts from black yeast for whitening skin |
| KR20090097904A (ko) * | 2007-01-05 | 2009-09-16 | 마이스킨 인크 | 피부 이미징을 위한 시스템, 디바이스 및 방법 |
| JP2011510999A (ja) * | 2008-02-01 | 2011-04-07 | アンコル インターナショナル コーポレイション | 改良された皮膚美白組成物 |
-
2015
- 2015-11-26 DE DE102015223395.2A patent/DE102015223395A1/de not_active Withdrawn
-
2016
- 2016-11-09 WO PCT/EP2016/077045 patent/WO2017089131A1/de not_active Ceased
- 2016-11-09 EP EP16794587.2A patent/EP3379996A1/de not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030086712A1 (en) * | 2001-11-08 | 2003-05-08 | Kenneth Merola | Method of promoting skin care products |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015223395A1 (de) | 2017-06-01 |
| WO2017089131A1 (de) | 2017-06-01 |
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| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: HAGENS, RALF Inventor name: SCHLAEGER, TORSTEN Inventor name: LANGE, THOMAS Inventor name: LESSMANN, MICHAEL Inventor name: BLECKMANN, ANDREAS |
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