Human body efficacy evaluation method for blackhead removing cosmetics

An evaluation method and technology for removing blackheads, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve the problems of time-consuming and high test costs, and achieve strong repeatability, good sensitivity and accuracy, and comprehensive blackhead removal effect Effect

Pending Publication Date: 2021-12-31
PROYA COSMETICS
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AI Technical Summary

Problems solved by technology

[0004] The blackhead removal efficacy evaluation method that relies on expert evaluation is subjective, time-consuming, and costly

Method used

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  • Human body efficacy evaluation method for blackhead removing cosmetics
  • Human body efficacy evaluation method for blackhead removing cosmetics
  • Human body efficacy evaluation method for blackhead removing cosmetics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: This embodiment is used to evaluate the blackhead-removing efficacy of a cleansing mask containing lactobionic acid.

[0042] The evaluation process is as follows figure 2 As shown, in this embodiment, a total of 18 subjects were recruited, including 16 females and 2 males, aged 25-40 years old, with an average age of 27±4 years old, with obvious blackheads on the face. During the test, according to 2mg / cm 2 Apply the test sample evenly to the test area, remove it after 15 minutes, use the sample every two days, and the test period is 14 days. During the test, the subjects could not use the same efficacy as the test sample or other products with blackhead removal efficacy. The subjects were followed up on day 0, day 7, and day 14, and each follow-up was at the same time point during the day. Subjects arrived at the laboratory, cleaned their faces as required, and waited in the designated area for 30 minutes before image collection. In this test, the t...

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PUM

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Abstract

The invention relates to a human body efficacy evaluation method for blackhead removing cosmetics. The method is characterized by comprising the following steps: A, acquiring facial images of a subject before and after using a to-be-tested product through a face imaging system; B, selecting a test area of the face image acquired in the step A, and calculating Hue standard deviation of the selected area of the face image before and after the to-be-tested product is used; and C, evaluating the blackhead removing effect of the to-be-tested product according to the Hue standard deviation calculated in the step B. The method has the following beneficial effects that the dependence on a semi-subjective expert evaluation method is reduced, blackhead removal can be evaluated more objectively, quickly and quantitatively, and the result has good repeatability. According to the method, the blackhead color is different from surrounding skin color, reduction of the number of blackheads is considered, reduction of the oxidation degree of the blackheads is also considered, and the blackhead removing effect of the cosmetics is evaluated more comprehensively.

Description

technical field [0001] The invention relates to the technical field of cosmetic efficacy evaluation, in particular to a method for evaluating the human body efficacy of blackhead-removing cosmetics. Background technique [0002] Blackheads are a type of acne, a chronic inflammatory disease of the skin that occurs on the face, mainly occurs in adolescence, and often lasts into adulthood. The causes of blackheads are complicated. Factors such as a large amount of sebaceous gland secretion and abnormal keratinization of the pilosebaceous gland duct opening can lead to blockage of the skin hair follicle opening, forming acne visible to the naked eye. In the case of air oxidation, ultraviolet radiation and dust pollution, the sebum exposed to the air turns black, forming comedones. Some active substances that inhibit sebum secretion are often added to cosmetics for the treatment of blackheads, such as polyphenols, fullerenes, and licorice complexes. Keratin exfoliation is also ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/00
CPCA61B5/441
Inventor 杨舒颜王艺蒙李亚男蒋丽刚
Owner PROYA COSMETICS
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