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Construction method of ultraviolet-induced skin blackening model

A construction method, ultraviolet technology, applied in the field of construction of ultraviolet-induced skin darkening model, can solve the problems of expensive, sunburned skin, etc., achieve uniformity and consistency, solve sunburn, and reduce the cost of testing equipment

Pending Publication Date: 2021-07-02
SHANGHAI FOREST CABIN BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the artificial light source of the sun simulator is expensive, needs to be carried out under the supervision of a dermatologist, and the skin will be sunburned in the process of determining the minimum amount of erythema. It is necessary to find an economical, safe and easy-to-operate UV-induced skin darkening How to build the model

Method used

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  • Construction method of ultraviolet-induced skin blackening model
  • Construction method of ultraviolet-induced skin blackening model
  • Construction method of ultraviolet-induced skin blackening model

Examples

Experimental program
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Effect test

Embodiment 1

[0034] This embodiment relates to a method for constructing an ultraviolet-induced skin darkening model. The method for constructing an ultraviolet-induced skin darkening model of the present invention has the advantages of economy, safety, and simple operation, and specifically includes the following steps:

[0035] Select the subject to be tested as a human, put a self-tanning lamp with a power of 400w and an erythema radiation of 87 in a device that is not transparent all around, and open a hole in the device with a size of 30×30cm; determine 4 places on the skin of the back of the human body The marked areas are respectively marked as area 1, area 2, area 3, and area 4. The marked area is a smooth area without hair, acne, and acne marks. The size is 3×3 cm. The non-marked area is covered with a black opaque cloth , and test the melanin and skin color in the marked area (that is, D0); put the object to be tested close to the opening of the device, and irradiate it with a sel...

Embodiment 2

[0050] This embodiment relates to a method for constructing an ultraviolet-induced skin darkening model. The method for constructing an ultraviolet-induced skin darkening model of the present invention has the advantages of economy, safety, and simple operation, and specifically includes the following steps:

[0051] Select the subject to be tested as a human being, put a self-tanning lamp with a power of 400w and an erythema radiation of 87 in a device that is not transparent all around, and open a hole in the device with a size of 10×10cm; determine 4 places on the skin of the back of the human body The marked areas are respectively marked as area 1, area 2, area 3, and area 4. The marked area is a smooth area without hair, acne, and acne marks. The size is 3×3 cm. The non-marked area is covered with a black opaque cloth , and test the melanin and skin color in the marked area (that is, D0); put the object to be tested close to the opening of the device, and irradiate it with...

Embodiment 3

[0066] This embodiment relates to a method for constructing an ultraviolet-induced skin darkening model. The method for constructing an ultraviolet-induced skin darkening model of the present invention has the advantages of economy, safety, and simple operation, and specifically includes the following steps:

[0067] Select the subject to be tested as a human, put a self-tanning lamp with a power of 400w and an erythema radiation of 87 in a device that is not transparent around, and open a hole in the device with a size of 20×20cm; determine 4 places on the skin of the back of the human body The marked areas are respectively recorded as area 1, area 2, area 3, and area 4. The marked area is a smooth area without hair, acne and acne marks, and the size is 1×1 cm. The non-marked area is covered with black opaque cloth , and test the melanin and skin color in the marked area (that is, D0); put the object to be tested close to the opening of the device, and irradiate it with a self...

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Abstract

The invention discloses a construction method of an ultraviolet-induced skin blackening model. The construction method comprises the following steps: irradiating a marked area of the skin of a healthy to-be-tested object by utilizing a blackening principle of a blackening lamp, irradiating once every 48 hours within two weeks, inducing skin pigmentation at the marked position, and then testing the MI value, L * value and ITA degree of the skin of the tested object. The method has the beneficial effects that the cost of test equipment is greatly reduced, the problem of sunburn in the process of determining the minimum erythema amount is solved, the method is not required to be supervised by dermatologists, and the effect of inducing skin blackening by ultraviolet rays can be achieved.

Description

technical field [0001] The invention belongs to the technical field of cosmetics, and in particular relates to a method for constructing an ultraviolet-induced skin darkening model. Background technique [0002] Whitening cosmetics can act on various stages of skin melanin formation and metabolic pathways to reduce skin chroma or pigmentation. The changes in skin brightness and chroma can be measured by pigment system and skin color measuring instruments, which can be used as whitening cosmetics. Evaluation index of skin whitening effect. [0003] The efficacy evaluation of whitening cosmetics can be roughly divided into two categories: one is the detection and evaluation of whitening active ingredients, and the other is the evaluation of the use effect of whitening products. According to the formation process of melanin and its influencing factors, the main targets of commonly used whitening cosmetics are tyrosinase, melanocytes and the transport and metabolism pathway of ...

Claims

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Application Information

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IPC IPC(8): A61K49/00
CPCA61K49/0006
Inventor 孙成芬朱美金高宏旗朱翠翠罗彪玉张群
Owner SHANGHAI FOREST CABIN BIOLOGICAL TECH
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