Composition with oil control and soothing effects and preparation method thereof

Abstract

The invention relates to a composition with oil control and soothing effects and a preparation method thereof. The composition comprises the following components: a citrus callus extract, a green tea extract, nicotinamide, a licorice root extract, sodium hyaluronate, D-panthenol, betaine, 1, 2-hexanediol, allantoin, bisabolol, butanediol, glycerol, p-hydroxyacetophenone, vitamin E and water. The invention aims to provide an effective skin care scheme for oily, mixed and sensitive skin. According to the composition, the synergistic effect of the citrus callus extract and the green tea extract is combined, and the nicotinamide, the licorice root extract, the hyaluronic acid and other components are supplemented, so that the overall effect and skin feeling of the product are enhanced. And finally, through a fine preparation process, the stability and biological activity of the effective components are ensured, the dual effects of oil control and soothing are realized, and meanwhile, the mildness and applicability of the product are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of cosmetics, and in particular to providing a composition with oil-controlling and soothing effects and a preparation method thereof. Background Art

[0002] In the cosmetics industry, caring for oily and combination skin has always been a challenge. This type of skin usually faces problems such as excessive oil secretion, enlarged pores, frequent acne and acne. Among them, oily and sensitive skin has higher requirements for the mildness and safety of cosmetic ingredients in addition to the above problems, because the skin barrier is damaged and more susceptible to external stimuli, resulting in adverse reactions such as redness, itching or stinging. At present, the ingredients of existing oil-control products on the market are mainly zinc sulfate, alcohol, acids, etc. Although these ingredients can quickly reduce the oiliness of the skin surface, they usually lack the ability to regulate sebum secretion in the long term and require frequent reapplication, which aggravates the irritation and discomfort of sensitive skin. In order to address the limitations of existing products, researchers began to explore safer and milder natural ingredients, as well as more effective formula design.

[0003] The present invention is proposed in this context. It mainly uses citrus plant callus extract and green tea extract to achieve synergistic effects, supplemented by niacinamide, licorice root extract and hyaluronic acid, etc., to control sebum secretion and reduce inflammation to provide skin soothing effects. It is suitable for oily, mixed and sensitive skin. Finally, through a carefully designed formula and preparation process, the product of the present invention is expected to provide a gentler, more effective and safer skin care experience to meet the needs of the market and users. Summary of the invention

[0004] The present invention aims to provide a composition having both oil control and soothing effects.

[0005] Another object of the present invention is to provide a method for preparing a composition having both oil control and soothing effects.

[0006] The object of the present invention is achieved through the following scheme: A composition with both oil control and soothing effects is mainly made of the following ingredients: citrus callus extract, green tea extract, niacinamide, licorice root extract, sodium hyaluronate, D-panthenol, betaine, 1,2-hexanediol, allantoin, bisabolol, butylene glycol, glycerin, p-hydroxyacetophenone, vitamin E and water.

[0007] Preferably, the composition having both oil control and soothing effects comprises the following components in weight percentage: 1-5% citrus callus extract, 2-6% green tea extract, 0.5-2% niacinamide, 1-3% licorice root extract, 0.5-2% hyaluronic acid, 1-5% D-panthenol, 1.5-3% betaine, 0.5-3% 1,2-hexanediol, 0.5-2% allantoin, 0.2-0.5% bisabolol, 2-5% butylene glycol, 3-8% glycerol, 0.2-0.5% p-hydroxyacetophenone, 0.1%-0.5% vitamin E, and the balance is water.

[0008] Further preferably, the preparation method of the citrus callus extract is: (1) Citrus seeds with outer seed coat were used as explants for inducing callus tissue, and MT basal medium containing 0.1-0.5 mg / L KT and 2.0-4.0 mg / L 2.4-D was used for callus induction; (2) The induced callus tissue was treated at a ratio of ethanol to water of 25 and a temperature of 50° C. for 30 minutes for extraction, purification and concentration to obtain a citrus callus tissue extract.

[0009] Further preferably, the solvent in step (2) is selected from ethanol / water solution.

[0010] The present invention provides a method for preparing a composition having both oil control and soothing effects, which mainly comprises the following preparation steps: (1) Weigh all the raw materials according to the formula and set aside; (2) Add phase A (1 / 3 water, glycerin, betaine, D-panthenol, sodium hyaluronate) to the mixing bowl, stir and heat to 82-85°C until completely dissolved; (3) Turn on the cooling water at medium speed; (4) Cool down to 50°C, add phase B (butylene glycol, 1,2-hexanediol, bisabolol, and p-hydroxyacetophenone) and stir evenly. Heat in a water bath at 53°C-58°C until dissolved and transparent before use; (5) Cool down to 40°C, add phase C (citrus callus extract, green tea extract, niacinamide, licorice root extract, vitamin E and allantoin) and the remaining water and mix well; (6) Take samples and test them for color, odor and pH value. After passing the tests, filter the sample with a 400-mesh filter cloth.

[0011] The beneficial effects of the present invention are as follows: Compared with the prior art, the cosmetics of the present invention provide a more gentle and effective oil control and soothing solution by using citrus callus extract and green tea extract. The composition of the present invention can not only significantly reduce oiliness, but also regulate sebum secretion for a long time, reduce skin irritation, provide long-lasting moisturizing, and is more suitable for oily and sensitive skin.

[0012] Designed to provide effective skin care solutions for oily, mixed and sensitive skin. The formula specifically combines the synergistic effects of citrus callus extract and green tea extract, supplemented with ingredients such as niacinamide, licorice root extract and hyaluronic acid to enhance the overall efficacy and skin feel of the product. Ultimately, through a sophisticated preparation process, the stability and biological activity of the active ingredients are ensured, achieving the dual effects of oil control and soothing, while ensuring the mildness and applicability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Changes in skin oil content at different time points; Figure 2 Changes in lactic acid pain scores at different time points. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below in conjunction with specific embodiments, which are only part of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0015] An oil-controlling and soothing combination made with: 2% citrus callus extract, 3% green tea extract, 2% niacinamide, 1% licorice root extract, 0.5% sodium hyaluronate, 1% D-panthenol, 2% betaine, 1,2-hexanediol, 1.5%, allantoin, 0.75%, bisabolol, 5% butylene glycol, 7.5% glycerin, 0.3% p-hydroxyacetophenone, 0.2% vitamin E, water to 100%, prepared according to the following steps: (1) Weigh all the raw materials according to the formula and set aside; (2) Add phase A including 1 / 3 water, glycerin, betaine, D-panthenol and sodium hyaluronate to the main pot, stir and heat in a water bath to 82-85°C until completely dissolved; (3) Turn on the cooling water at medium speed; (4) When the temperature drops to 50°C, add phase B, which is composed of butanediol, 1,2-hexanediol, bisabolol and p-hydroxyacetophenone. Before use, heat phase B in a water bath at 53°C to 58°C until it is completely dissolved and becomes transparent, and then stir thoroughly to ensure uniform mixing; (5) When the temperature drops below 40°C, add phase C comprising citrus callus extract, green tea extract, niacinamide, licorice root extract, vitamin E and allantoin, and stir the remaining water evenly; (6) After the preparation of the composition, samples were taken in a well-lit, undisturbed laboratory to ensure that the obtained composition was uniform in color and free of impurities, and the color was colorless or light yellow; then, the odor was evaluated in a clean, undisturbed room to confirm that it had a fresh and natural plant aroma, with a slight citrus and green tea flavor, and no irritating odor; finally, the pH value of the composition was adjusted to 5.5 using a calibrated pH tester to ensure that the product met the safety, stability and design standards. On this basis, the composition was filtered out using a 400-mesh filter cloth.

[0016] In this embodiment, the preparation method of the citrus callus extract is: (1) Citrus seeds with outer seed coat were used as explants for inducing callus tissue, and callus induction was carried out using MT basal medium containing 0.1-0.5 mg / L KT and 2.0-4.0 mg / L 2.4-D; (2) The induced citrus callus was placed in a mixed solvent of ethanol and water in a ratio of 3:1, extracted at 50°C for 30 minutes, and purified and concentrated to obtain a citrus callus extract.

[0017] Test method: This test adopts the form of a questionnaire, selects 15 subjects with oily sensitive skin, and conducts relevant evaluation on the samples after using the example composition continuously for 14 days.

[0018] (1) Selection criteria: Applicants must be healthy male or female, aged between 18 and 40 years old; oily skin, positive lactic acid tingling, ≥ 3 points; forehead oil content > 120ug sebum / cm 2 (Data before washing face); Those who have not used hormone drugs and immunosuppressants in the past month; Those who have not used immunosuppressants in the test area now or in the past 30 days; Those who can cooperate well with the experiment; Only use designated care products during the trial; Agree not to use any cosmetics, drugs and health products that may affect the results during the trial period.

[0019] (2) Test method: The oil control and soothing effects of the samples were verified by testing the skin oil content of 15 subjects before and after using the test samples, a lactic acid stinging test, and self-assessment by the subjects.

[0020] Skin oil content test: Before using the sample and 14 days later, the subjects cleaned their faces with facial cleanser and wiped their skin with dry facial tissue. After sitting in a laboratory with a temperature of 21±1℃ and a humidity of 50±10% for 30 minutes, the Courage + Khazaka oil probe SM815 was used to test the skin oil content on that day. Lactic acid stinging test: Take 50μL of 10% lactic acid solution and drop it on a single-layer non-woven fabric with a diameter of 0.8cm. Apply the non-woven fabric to the nasolabial groove on either side of the subject, and use distilled water as a control on the other side. The researcher asked the subject about the stinging sensation at 2.5min and 5min, respectively, and scored according to the "4-point method" in Table 1. Those with a cumulative stinging sensation of ≥3 points on the lactic acid side relative to the distilled water side are considered to have lactic acid stinging and can be judged as sensitive skin. The stinging sensation scoring standard is: 0 points for no stinging; 1 point for slight stinging; 2 points for moderate stinging that can be tolerated; 3 points for severe stinging that cannot be tolerated.

[0021] Test results after days: (1) Skin oil content test results Figure 1 The test results showed that the average skin oil content of 15 subjects decreased by 65ug / cm after using the samples for 14 days compared with before using the samples. 2 , indicating that the composition can effectively regulate skin oil secretion, reduce the accumulation of excess oil, and thus help the skin maintain a refreshing and balanced state.

[0022] (2) Lactic acid sting test score After two weeks of continuous use, the lactic acid sting response was evaluated in 15 subjects. Figure 2 The test results showed that the lactic acid stinging score of all subjects decreased by an average of 2.4 points compared to before using the samples. This significant improvement fully demonstrated the excellent performance of the test samples in soothing skin sensitivity and reducing stinging sensation.

Claims

1. A composition having both oil control and soothing effects, characterized in that: The invention comprises the following components by weight percentage: 1-5% citrus callus extract, 2-6% green tea extract, 0.5-2% niacinamide, 1-3% licorice root extract, 0.5-2% sodium hyaluronate, 1-5% D-panthenol, 1.5-3% betaine, 0.5-3% 1,2-hexanediol, 0.5-2% allantoin, 0.2-0.5% bisabolol, 2-5% butylene glycol, 3-8% glycerin, 0.2-0.5% p-hydroxyacetophenone, 0.1%-0.5% vitamin E, and the balance is water.

2. The composition having both oil control and soothing effects according to claim 1, characterized in that: Includes the following ingredients: Citrus callus extract 2%, green tea extract 3%, niacinamide 2%, licorice root extract 1%, sodium hyaluronate 0.5%, D-panthenol 1%, betaine 2%, 1,2-hexanediol 1.5%, allantoin 0.75%, bisabolol 0.5%, butylene glycol 5%, glycerin 7.5%, p-hydroxyacetophenone 0.3%, vitamin E 0.2%, water to 100%.

3. The composition having both oil control and soothing effects according to claim 1, characterized in that: The preparation method of the citrus callus extract is: (1) Citrus seeds with outer seed coat were used as explants for inducing callus tissue, and callus induction was carried out using MT basal medium containing 0.1-0.5 mg / L KT and 2.0-4.0 mg / L 2.4-D; (2) The induced citrus callus was placed in a mixed solvent of ethanol and water and extracted at 50°C for 30 minutes. The citrus callus extract was prepared through purification and concentration.

4. The composition having both oil control and soothing effects according to claim 3, characterized in that: The solvent ethanol / water solution ratio in step (2) is 3:

1.

5. A method for preparing the composition having both oil control and soothing effects according to any one of claims 1 to 4, characterized in that: The following steps are involved: (1) Weigh all the raw materials according to the formula and set aside; (2) Add phase A including 1 / 3 water, glycerin, betaine, D-panthenol and sodium hyaluronate to the mixing bowl, stir and heat to 82-85°C until completely dissolved; (3) Turn on cooling; (4) Cooling to 50°C, adding phase B including butanediol, 1,2-hexanediol, bisabolol, and p-hydroxyacetophenone, and stirring evenly; (5) Cooling to 40°C, adding phase C including citrus callus extract, green tea extract, niacinamide, licorice root extract, vitamin E and allantoin, and stirring the remaining water evenly; (6) Take samples for color, odor, and pH value 5-6. After passing the test, filter the material with a 400-mesh filter cloth.

6. The method for preparing the composition having both oil control and soothing effects according to claim 5, characterized in that: The composition having both oil control and soothing effects is made of the following ingredients: 2% citrus callus extract, 3% green tea extract, 2% niacinamide, 1% licorice root extract, 0.5% sodium hyaluronate, 1% D-panthenol, 2% betaine, 1,2-hexanediol, 1.5%, allantoin, 0.75%, bisabolol, 5% butylene glycol, 7.5% glycerin, 0.3% p-hydroxyacetophenone, 0.2% vitamin E, water to 100%, prepared according to the following steps: (1) Weigh all the raw materials according to the formula and set aside; (2) Add phase A including 1 / 3 water, glycerin, betaine, D-panthenol and sodium hyaluronate to the main pot, stir and heat in a water bath to 82-85°C until completely dissolved; (3) Turn on the cooling water at medium speed; (4) When the temperature drops to 50°C, add phase B, which is composed of butanediol, 1,2-hexanediol, bisabolol and p-hydroxyacetophenone. Before use, heat phase B in a water bath at 53°C to 58°C until it is completely dissolved and becomes transparent, and then stir thoroughly to ensure uniform mixing; (5) When the temperature drops below 40°C, add phase C comprising citrus callus extract, green tea extract, niacinamide, licorice root extract, vitamin E and allantoin, and stir the remaining water evenly; (6) After the preparation of the composition is completed, a sample is taken in a well-lit and undisturbed laboratory to ensure that the obtained composition has uniform color and is free of impurities, and the color is colorless or light yellow; then, the odor is evaluated in a clean and undisturbed room to confirm that it has a fresh and natural plant aroma, a slight citrus and green tea flavor, and no irritating odor; finally, the pH value of the composition is adjusted to 5.5 using a pH tester, and the composition is filtered using a 400-mesh filter cloth.

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