Cleaning composition based on camellia oil acyl glycine surfactant

Abstract

The invention discloses a cleaning composition based on a camellia oil acyl glycine surfactant, the cleaning composition comprises a skin cleaning agent and camellia oil acyl glycine, the camellia oil acyl glycine and the skin cleaning agent form the cleaning composition with a selective cleaning function, and the cleaning composition acts on skin and has unique mild cleaning performance. According to the present invention, the skin lipid removing effect of the cleaning product can be effectively reduced, and the cleaning power on the basic makeup and other skin dirt can be maintained so as to furthest reduce the skin damage during the cleaning process, and effectively improve the mildness of the product.

Description

Technical Field

[0001] This invention relates to the field of skin cleansing technology, specifically to a cleansing composition based on camellia oleyl glycine surfactant. Background Technology

[0002] As people's demands for quality of life increase, various facial cleansers, as basic cosmetics, have become necessities. Currently, the market offers a wide variety of facial cleansers, most of which emphasize deep cleansing and rich foam in their marketing. These products often possess strong cleansing power, but this doesn't mean that the stronger the cleansing power, the more skin-friendly it is. Consumers' basic need is for cleansing without damaging the skin.

[0003] The most common surfactants in facial cleansers include sodium lauryl ether sulfate, potassium cocoyl glycinate, sodium cocoyl glycinate, disodium sulfosuccinate, and fatty acid salts. These surfactants are characterized by producing good foam, but their cleansing power is generally strong, indiscriminately cleaning the skin. While removing dirt, they also indiscriminately cleanse beneficial components of the skin, such as the sebum film and intercellular lipids. Long-term use of these products can damage the skin barrier, making the skin fragile and prone to allergies. This aligns with the significant increase in allergic skin conditions in urban areas in recent years.

[0004] Traditional surfactants, while powerful in cleaning, can also significantly damage the skin barrier. Adding soothing ingredients like bisabolol results in minimal contact time with the active ingredients during cleansing, leading to negligible residue and thus hindering their effectiveness.

[0005] Some compromise solutions, such as adding oils, reducing the concentration of surfactants, or using amphoteric or nonionic surfactants as the main surfactants, will sacrifice some of the inherent properties of the facial cleanser itself, such as reduced foam, less refreshing feel, and decreased cleansing power.

[0006] Skin lipids are beneficial components secreted by the human skin itself, existing in the intercellular lipids of the skin and forming an important part of the skin barrier. Therefore, the selective retention of skin lipids by cleansing products during cleansing can be considered an important indicator of their gentleness. Thus, how to intelligently retain the beneficial components secreted by the skin during cleansing is the technical problem this invention aims to solve. Summary of the Invention

[0007] The purpose of this invention is to provide a cleaning composition based on camellia oleyl glycine surfactant to solve the problems mentioned in the background art.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a cleaning composition based on camellia oleyl glycine surfactant, comprising a skin cleanser and camellia oleyl glycine, wherein the camellia oleyl glycine and the skin cleanser constitute a cleaning composition with selective cleaning function.

[0009] Preferably, the skin cleanser is any one of soap-based facial cleanser, amino acid-based facial cleanser, and compound facial cleanser, and is preferably an amino acid-based facial cleanser.

[0010] Preferably, the proportion of camellia oleoyl glycine is 1-15%.

[0011] Compared with the prior art, the surfactant composition of the present invention has unique properties of gentle cleansing, which can effectively reduce the removal of skin lipids by cleansing products, while maintaining the cleansing power of basic makeup and other skin dirt, thereby minimizing skin damage during the cleansing process and effectively improving the gentleness of the product. Attached Figure Description

[0012] Figure 1 This is a bar chart showing the removal rate of lip gloss by the raw materials / formula of this invention; Figure 2 This is a bar chart showing the cleansing effect of the raw materials / formula of this invention on the sebum film. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] Example The present invention provides a technical solution: a cleaning composition based on camellia oleyl glycine surfactant, comprising a skin cleanser and camellia oleyl glycine, wherein the camellia oleyl glycine and the skin cleanser constitute a cleaning composition with selective cleaning function.

[0015] The skin cleanser is any one of soap-based facial cleanser, amino acid-based facial cleanser, and compound facial cleanser, preferably an amino acid-based facial cleanser.

[0016] The proportion of camellia oleoyl glycine is 1-15%, preferably 5.4%.

[0017] Two cleansing compositions were formed by combining sodium camellia oleyl glycinate and sodium cocoyl glycinate at a ratio of 5.4% with an amino acid facial cleanser, and the following tests were conducted on the compositions:

[0018] I. Sebum Film Cleansing Test 1. Test Objective

[0019] Comparing the cleansing power of HONDU CG-32GR (sodium camelliayl glycinate) and HONDU SG-30 (sodium cocoyl glycinate) in the Xue Ling Fei Camellia Oil Amino Acid Facial Cleanser formula to the sebum film.

[0020] 2. Experimental Design 2.1 Experimental materials, reagents, and instruments

[0021]

[0022] 2.2 Test Method ① The whiteness value F0 of 6 pieces of artificial leather before ester application was tested; ② Accurately weigh a certain amount of sebum, apply it evenly to the artificial leather, and test the whiteness value F1 of each sample after applying sebum; ③ Six pieces of artificial leather coated with sebum were immersed in a pre-prepared aqueous solution of surfactant / cleanser and then stirred for cleaning. After stirring, the pieces were dried. Once completely dry, the whiteness value F2 of each piece of artificial leather after cleaning was measured.

[0023] 2.3 Cleaning Power Calculation Method The cleaning rate N is calculated using the formula N(cleaning rate) = 100% * (F2-F1) / (F0-F1). Then, the average, median, mean deviation, relative mean deviation, standard deviation, and relative standard deviation of the cleaning rates of the six parallel samples are calculated in sequence. Note: F0—Whiteness value of blank carrier material; F1—Average whiteness value of artificial leather without desulphur removal; F2—Average whiteness value of artificial leather after desulphur removal; According to the Grubbs method, at a confidence level of 90%, suspicious values ​​in the cleanliness rate of 6 parallel samples are discarded. If a test exceeds the limit range, no more than one data point needs to be discarded; otherwise, the test is invalidated and needs to be repeated.

[0024] 2.4 Statistical Methods SPSS software was used for statistical analysis. Due to the small sample size, analysis of variance was used. Since only one factor changed in the experiment, one-way analysis of variance was used. If the p-value is less than 0.05, it indicates that there is a significant difference between the two groups of data; otherwise, it indicates that there is no significant difference.

[0025] 3. Test Data 3.1 Raw material samples

[0026] 3% HONDU CG-32GR

[0027] 3% HONDU SG-30

[0028] 3.2 Facial Cleanser Samples 10% Facial Cleanser (HONDU CG-32GR) ①

[0029] 10% Facial Cleanser (HONDU SG-30) ②

[0030] S: According to the Grubbs test, data number 1 is an outlier and is therefore discarded.

[0031] 15% Facial Cleanser (HONDU CG-32GR) ①

[0032] 15% Facial Cleanser (HONDU SG-30) ②

[0033] 4. Data Analysis 4.1 Analysis of significant differences in raw material cleanliness rates

[0034]

[0035] One-way ANOVA

[0036] Since P=0.0001<0.05, it was determined that there was a significant difference in the cleansing rate of the two raw materials on the sebum film.

[0037] 4.2 Analysis of significant differences in the cleaning efficiency of facial cleansers

[0038] ① When the concentration of the facial cleanser was 10%, a one-way ANOVA was performed on the two groups of data, and the results are as follows.

[0039] Since P=0.0133<0.05, it was determined that at this concentration, there was a significant difference in the cleansing efficiency of the two facial cleansers on the sebum film.

[0040] ② When the concentration of the facial cleanser was 15%, a one-way ANOVA was performed on the two groups of data, and the results are as follows.

[0041] Since P = 2.6871 * 10⁻⁵ < 0.05, it is determined that at this concentration, there is a significant difference in the cleansing efficiency of the two facial cleansers on the sebum film.

[0042] 5. Results The test results showed that when the facial cleanser concentration was 10%, there was a significant difference in the cleansing rate of facial cleanser A (CG32GR) [average cleansing rate 18.47%] and facial cleanser B (SG30) [average cleansing rate 24.74%] on the sebum film. When the facial cleanser concentration was 15%, there was also a significant difference in the cleansing rate of facial cleanser A (CG32GR) [average cleansing rate 18.67%] and facial cleanser B (SG30) [average cleansing rate 86.54%] on the sebum film.

[0043] There was a significant difference in the cleansing rate of HONDU CG-32GR (sodium camelliayl glycinate) [average cleansing rate 18.99%] and HONDU SG30 (sodium cocoyl glycinate) [average cleansing rate 38.88%] on the sebum film.

[0044] II. Lip Gloss Removal Test 1. Test Objective

[0045] This study compared the cleansing power of two groups of cleansing products on makeup. The cleansing products were: ① Xue Ling Fei Camellia Oil Amino Acid Facial Cleanser-20240702 (with HONDU CG-32GR as the main surfactant) and Xue Ling Fei Camellia Oil Amino Acid Facial Cleanser-231222-40-1-20241222 (with HONDU SG-30 as the main surfactant); ② Raw materials CG-32GR (sodium camelliayl glycinate) batch number 87029C243 and SG-30 (sodium cocoyl glycinate) batch number 81219E231. MAKEUPMIRACLE Soft Matte Lip Gloss (Tulip Cherry Red 03) was selected as the makeup product. A pre- and post-treatment control experiment was conducted, collecting Lab values ​​from the arms of six participants before and after applying the lip gloss and after cleansing. The effectiveness of the two cleansing products in removing the lip gloss was compared.

[0046] 2. Experimental Preparation 2.1 Experimental materials, reagents, and instruments

[0047]

[0048] 2.2. Selection of Test Sites The test sites were the palmar sides of the left and right forearms. Two test points were randomly selected on the palmar sides of the left and right forearms as the sample application area and the control area. The sample application area and the control area were of the same size. Each test point area was approximately a 2×2cm square, and the areas were spaced at least 5cm apart to ensure that the sample application area and the control area were statistically balanced.

[0049] 3. Experimental Design 3.1 Experimental Procedure

[0050] 3.1.1 Before trying the product (1) Before the test, the tester will rinse the skin surface of the inside of the subject's arm for 5 seconds and gently pat the surface dry with a tissue. Do not wipe.

[0051] (2) The tester marks the measurement area on the inside of the subject's arms.

[0052] (3) Use VISIA to acquire arm images as the initial arm images before using the product.

[0053] (4) Analyze the image of the subject's arm using image recognition software to obtain the initial Lab value.

[0054] 3.1.2 Trial Products (1) The testers applied the lip gloss evenly to the skin at a dosage of 1.8~2 mg / cm2.

[0055] (2) The subject waits for 60 minutes, remains relaxed, and avoids touching the test site.

[0056] (3) Use VISIA to collect arm images as instant arm images after applying lip gloss. Analyze the images of the subject's arm with image recognition software to obtain the Lab value before cleaning after applying lip gloss.

[0057] (4) Use the friction head to perform a removal force test on the test area. The test parameters are as follows: ① The concentration of the facial cleanser solution is 15%, the concentration of the effective substance in the raw material solution is 3%, the pH value of the raw material solution is adjusted to about 9.0, and 10 drops are applied. ② The vertical pressure of the friction head is 3 kPa. ③ Cleaning method: linear reciprocating motion, 5 times.

[0058] 3.1.3 Testing of Trial Use (1) The testers rinsed the skin surface of the test area on the inside of the subject's arm with 200 ml of tap water, and gently patted the surface dry with a tissue. Do not wipe.

[0059] (2) Use VISIA to acquire arm images as images of the arm after using the product.

[0060] (3) The Lab value after cleaning was obtained by analyzing the image of the subject's arm using image recognition software.

[0061] 3.2 Cleaning Power Calculation Method The skin color difference after applying lip gloss, compared to the initial state, is calculated and denoted as △E (after applying lip gloss); the skin color difference after cleansing, compared to the initial state, is also denoted as △E (after cleansing). △E comprehensively reflects the three-dimensional change in skin color. A larger △E value indicates a more obvious change in skin color, while a smaller △E value indicates that the skin color is closer to the initial state. The removal rate is calculated using △E, and the formula is as follows:

[0062] 3.3 Statistical Methods SPSS software was used for statistical analysis. If the data were normally distributed, the t-test was used; otherwise, the rank-sum test was used. All statistical methods employed two-tailed tests with a significance level of α=0.05.

[0063] 3.4 Subjects 3.4.1 Subject Requirements

[0064] ① Volunteers aged 18-45 who meet the trial requirements; ② Under the supervision of the testing personnel, volunteers rinsed their arms with clean water and dried them with lint-free absorbent paper towels. They then sat quietly in a standardized testing environment, remaining relaxed and avoiding touching the testing area. Skin condition was measured using instruments such as VISIA.

[0065] ③ Individuals with the following conditions should not be selected as subjects: A) Individuals who have used antihistamines within the past week or anti-inflammatory drugs such as immunosuppressants or corticosteroids within the past month. B) Individuals with allergies, allergic dermatitis, or a history of skin diseases. C) Individuals currently receiving dermatological treatment or those who have taken hydroxy acids, skin-whitening drugs, or anti-aging medications within the past month. D) Individuals who have used any products or medications that affect skin color (such as hydroquinone preparations), such as glycolic acid, salicylic acid, or retinoids, or who have undergone cosmetic treatments such as chemical peels, lasers, or pulsed light within the past two months. E) Skin characteristics in the test area that may affect the test results, such as large areas of birthmarks, scratches, vitiligo, pigmented nevi, keloids, inflammation, or hirsutism. F) Pregnant or breastfeeding women, or those planning to conceive in the near future. G) Individuals with other chronic systemic diseases H) Those who cannot avoid prolonged exposure to sunlight; 3.4.2 Subject Information

[0066]

[0067] 4. Data on removing lip gloss from skin The skin Lab value was calculated and measured by VISIA in conjunction with image analysis software. The larger the color difference ΔE value, the greater the change in skin color. The cleaning power of different cleaning products was calculated and measured based on the color difference ΔE value. The results of this test are shown in the following statistics.

[0068] 4.1 Facial cleanser sample ①Type A facial cleanser

[0069] ②B type facial cleanser

[0070] 4.2 Raw material samples ①CG-32GR (Sodium Camellioyl Glycinate) batch number 87029C243

[0071] ②SG-30 (Sodium Cocoyl Glycinate) batch number is 81219E231

[0072] 5. Data Analysis 5.1 Analysis of lip gloss removal rate data

[0073] (1) Descriptive statistics The number of cases for the removal rate test data of the lip gloss of the two facial cleansers and the two raw materials was 6 each, for a total of 24.

[0074]

[0075] The results of the homogeneity of variance test for the two facial cleansers showed an F-value of 0.011 and a significance probability of p = 0.919 > 0.05, indicating that the variances of the two groups were not significantly different and were homogeneous. The data from the t-test, assuming equal variances, were selected as the t-test results, with t = -0.649 and p = 0.531 > 0.05. Therefore, there was no significant difference in the removal rate of lip gloss between the two facial cleansers.

[0076]

[0077] The results of the homogeneity of variance test for the two raw materials showed an F-value of 1.725 and a significance probability of p = 0.218 > 0.05, indicating that the variances of the two groups were not significantly different and were homogeneous. The data from the t-test, which assumed equal variances, were selected as the results of the t-test, with t = -0.273 and p = 0.791 > 0.05. Therefore, there was no significant difference in the removal rate of lip gloss between the two raw materials.

[0078]

[0079] The results showed that there was no significant difference in the removal rate of lip gloss between facial cleanser A and facial cleanser B, and there was no significant difference in the removal rate of lip gloss between CG-32GR (sodium camelliayl glycinate, batch number 87029C243) and SG-30 (sodium cocoyl glycinate, batch number 81219E231).

[0080] "No statistical significance" means that the difference is not statistically significant. However, it does not mean that there are no differences between the samples. Rather, it means that with the current sample size and statistical analysis methods, it is impossible to draw a statistically significant conclusion.

[0081] 5.2 The Cleansing Effect of Different Products on Lip Gloss

[0082] 6. Results The test results showed that there was no significant difference in the removal rate of lip gloss between facial cleanser A (average removal rate 78.19%) and facial cleanser B (average removal rate 79.95%). Similarly, there was no significant difference in the removal rate of lip gloss between CG-32GR (sodium camelliayl glycinate, batch number 87029C243, average removal rate 76.29%) and SG-30 (sodium cocoyl glycinate, batch number 81219E231, average removal rate 77.76%).

[0083] III. Conclusion Based on the above data, the results are as follows: Figure 1 as well as Figure 2 As shown.

[0084] In summary, HONDU CG-32GR (sodium camelliayl glycinate) and product A, which uses HONDU CG32GR as the main surfactant, have selective cleansing effects, while HONDU SG30 (sodium cocoyl glycinate) and product B, which uses HONDU SG30 as the main surfactant, do not have selective cleansing effects.

[0085] The surfactant composition of the present invention has unique properties of gentle cleansing, which can effectively reduce the removal of skin lipids by cleansing products, while maintaining the cleansing power of basic makeup and other skin impurities, thereby minimizing skin damage during the cleansing process and effectively improving the gentleness of the product.

[0086] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0087] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cleansing composition based on a surface active agent of camellinoyl glycine, including a skin cleanser and camellinoyl glycine, characterised in that: The camellia oil acyl glycine and the skin cleaning agent constitute a cleaning composition with a selective cleaning function.

2. A cleansing composition based on camissate glycine surfactant characterised in that: The skin cleaning agent is any one of a soap-based facial cleanser, an amino acid-based facial cleanser, and a compound facial cleanser.

3. A cleansing composition based on camissate glycinates surfactants characterized in that: The camellia oil acyl glycine accounts for 1-15%.

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