New use of yanchun sand essential oil and cosmetics with moisturizing function

Abstract

This invention belongs to the field of daily chemical products and discloses the application of *Amomum villosum* essential oil in the preparation of moisturizing cosmetics. This invention discovers that *Amomum villosum* essential oil has excellent moisturizing and calming effects, with its moisturizing effect significantly superior to commonly used moisturizing essential oils in the field. Furthermore, this invention also provides cosmetics containing *Amomum villosum* essential oil.

Description

Technical Field

[0001] This invention relates to the field of new materials for daily chemical products, and in particular to a new use of Yangchunsha essential oil and a cosmetic with moisturizing function. Background Technology

[0002] Currently, there are many types of preparations on the market made from Yangchunsha extract or its core active ingredients. They are mainly used in traditional Chinese medicine prescriptions, prepared Chinese medicines such as Xiangsha Yangwei Pills, and health products. Among them, pills, powders, capsules and extracts are the most widely used.

[0003] The application of Amomum villosum essential oil is mostly in the field of calming the nerves. For example, patent application CN110801497A, which is about the application of Amomum villosum essential oil, proposes the application of Amomum villosum essential oil in the preparation of drugs for treating or preventing brain function and related disorders, and the application of Amomum villosum essential oil in the preparation of health products that improve brain function and related disorders. It also points out that it can be used in health products, including cosmetics, bath products and aromatherapy products.

[0004] In our research on the calming effects of Yangchunsha essential oil, we found that it not only has the aforementioned effects in cosmetics, but also improves other cosmetic effects. Summary of the Invention

[0005] The purpose of this invention is to provide a new use for Yangchunsha essential oil. This invention discovers that Yangchunsha essential oil has a very good moisturizing effect, which is significantly better than that of commonly used moisturizing essential oils in the field.

[0006] In addition, the present invention also provides cosmetics containing Yangchunsha essential oil.

[0007] The technical solution of this invention is as follows: The application of Yangchun sand essential oil in the preparation of moisturizing cosmetics.

[0008] In the above applications, the cosmetic is a shower gel, shower oil, moisturizing essential oil, or soap used for skin cleansing.

[0009] Meanwhile, the present invention also discloses a cosmetic with moisturizing function, which contains moisturizing essential oil, including Yangchunsha essential oil.

[0010] In the aforementioned cosmetics, the moisturizing essential oil also includes clove bud essential oil, and the weight ratio of the sand peony essential oil to the clove bud essential oil is 5~40:2~8.

[0011] The aforementioned cosmetics also include auxiliary oils, which are one or more combinations of grape seed oil, sunflower seed oil, camellia seed oil, and caprylic / capric triglycerides.

[0012] In the aforementioned cosmetics, the weight ratio of Yangchunsha essential oil to auxiliary oils is 5~40:30~55.

[0013] In the above-mentioned cosmetics, the cosmetics are shower gels, shower oils, moisturizing essential oils, or soaps used for skin cleansing.

[0014] In the aforementioned cosmetics, the concentration of moisturizing essential oil is 7-40%.

[0015] This application has at least the following beneficial effects: 1. This invention discovers that Yangchun Sandalwood essential oil has a good moisturizing effect and can be used as a core ingredient in moisturizing essential oils in cosmetics; 2. This invention creatively solves the core contradiction of the original technology—the potential irritation of synthetic chemical cleaners and the lack of efficacy and poor experience of traditional herbal bath products—by using carefully selected volatile oils from Yangchun sand as the core active ingredient. Specifically, its natural volatile oils, such as bornyl acetate and eucalyptol, work synergistically to gently and effectively inhibit common microorganisms on the surface of human skin. Furthermore, by promoting local microcirculation and soothing the nerves, it achieves a deep moisturizing and calming effect through its mechanism. Compared with existing technologies, this invention combines the high efficiency of chemically synthesized products with the extreme gentleness of pure natural products. It overcomes the shortcomings of traditional herbal bath products, such as vague efficacy, oil-water separation, unpleasant fragrance, or dry skin after use. It provides an innovative body care solution with a clear mechanism of efficacy, excellent sensory experience, and perfectly meets modern consumers' comprehensive needs for natural, effective, and safe products. Attached Figure Description

[0016] Figure 1 This is a photograph of the sample from Example 1 before use; Figure 2 This is a photograph of the sample from Example 1 taken on the 7th day after use; Figure 3 This is a photograph of the sample from Example 1 taken 14 days after use. Detailed Implementation

[0017] The present invention will now be clearly and completely described in conjunction with embodiments thereof. It should be noted that, unless specific conditions are specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall apply. Reagents or instruments whose manufacturers are not specified are all commercially available conventional products.

[0018] The extraction method for Amomum villosum essential oil employs a combination of supercritical fluid extraction and molecular distillation as follows: Step 1: Supercritical Extraction 1. The dried sand agar / Hainan sand agar fruit is moderately crushed to increase its contact area with the extractant and improve extraction efficiency.

[0019] 2. Load the pretreated Yangchun sand raw material into the extraction vessel of the supercritical extraction equipment, and ensure that the equipment is well sealed; 3. Start the equipment and introduce high-purity carbon dioxide (CO2) into the extraction vessel. The temperature is usually between 35-50℃, and the pressure is much higher than 7.38 MPa. The supercritical CO2 fluid penetrates into the plant cells, dissolving and carrying away the volatile essential oils, pigments, waxes, and other fat-soluble components in Yangchun sand / Hainan sand.

[0020] 4. The CO2 fluid carrying the extract enters the separation vessel. By reducing the pressure, the solubility of CO2 decreases sharply, causing it to separate from the extract and revert to gas, which can then be recycled.

[0021] What remains is the crude extract of Yangchun sand / Hainan sand.

[0022] Step 2: Molecular distillation The crude extract of *Amomum villosum* / *Amomum hainanense* obtained by supercritical fluid extraction was used as the feedstock for molecular distillation. The crude extract was slowly added to the distillation vessel of the molecular distillation apparatus. The high vacuum system was activated to reduce the internal pressure of the apparatus to an extremely low level (typically around 10). -3 Up to 10 -1 (Between Pa). Under high vacuum conditions, the raw material in the distillation vessel is gently heated (temperature 40-60℃).

[0023] Light molecules (target essential oil): The active ingredients in Yangchun sand / Hainan sand essential oil have smaller molecular weights, which leap to the condensation surface, condense into liquid after cooling, and flow into the collector, resulting in high-purity essential oil.

[0024] Heavy molecules (impurities): Impurities such as wax, pigments, and resins have large molecular weights and cannot reach the condensation surface. They will flow down the evaporator wall and separate out.

[0025] If the raw material is Yangchun sand, then the essential oil is Yangchun sand essential oil; if the raw material is Hainan sand, then the essential oil is Hainan sand essential oil.

[0026] According to gas chromatography-mass spectrometry (GC-MS) analysis, the main components of the volatile oil of *Amomum villosum* essential oil include bornyl acetate (approximately 40-60%, with a maximum of 51.6%), camphor (approximately 15-20%, with a maximum of 19.8%), borneol (approximately 5-10%), limonene (approximately 5-8%), camphene (approximately 5-10%), α-pinene (approximately 5-10%), β-pinene (approximately 5-10%), linalool (approximately 2-5%), and nerolidol (approximately 1-3%).

[0027] Examples and Comparative Examples The formulations of the various embodiments and comparative examples of the present invention are shown in Table 1 below; The preparation method of bath oil is as follows: Stir phase A until homogeneous, add phase B and continue stirring until homogeneous; add phase C and stir until homogeneous.

[0028] Table 1 Formulation Table (Unit: wt%) ; 1. Sleep Improvement Effect Test

[0029] 1.1 The Pittsburgh Sleep Quality Index (PSQI) was used to subjectively assess the sleep quality of the compound essential oil compositions (combinations 1-3) in Table 1. The PSQI consisted of 15 self-assessment items and 3 peer-assessment items; the 15th self-assessment item and the 3 peer-assessment items were not scored. The remaining 14 scored items were divided into 7 dimensions: sleep quality, sleep onset time, sleep duration, sleep efficiency, sleep disorders, sleep aids, and daytime dysfunction. Each dimension was scored from 0 to 3, and the total PSQI score was calculated by accumulating the scores across all dimensions. A score >7 indicated poor sleep quality, and a score <7 indicated good sleep quality. A decrease of ≥3 points in the score before and after the test was considered an improvement in subjective sleep quality.

[0030] 1.2 During the testing process, 100 college students (all confirmed to have a certain tendency towards sleep disorders and anxiety) were recruited as volunteers and divided into 5 groups of 20 people each, with an equal number of males and females. The experimental period was 28 days. Volunteers used the sample for bathing before going to sleep each day, and the average PSQI score before and after 28 days of testing was recorded.

[0031] The formulations involved in this test are those described in Examples 1, 4, and 5, Comparative Example 1, and the blank control group. The test results are shown in Table 2. Table 2 Test Results ; The test results above show that the formula containing Amomum villosum essential oil has a significant effect on improving PSQI scores.

[0032] 2. Sleep Aid and Anxiety Relief Score Measurement

[0033] 2.1 To preliminarily assess the effects of different essential oil combinations on sleep-aiding and anxiety-relieving efficacy through volunteer testing, 30 college students (all confirmed to have a certain tendency towards sleep disorders and anxiety) were recruited as volunteers and divided into 3 groups. Samples were measured in each group, with an equal number of males and females. The experimental period was 28 days. The Self-Rating Anxiety Scale (SAS) was used to assess anxiety levels. The raw total SAS scores for different volunteers are shown in Table 5. Volunteers used the same dosage and proportion of bath oil each night before bed, and the results were recorded for 28 days. No other sleep aids or substances that could alleviate sleep disorders and anxiety were used during this period.

[0034] The formula of the bath oil of the present invention is as follows: Example 1, Comparative Example 1, and Blank Control Group; The test results are shown in Table 3; Table 3 Test Results ; The statistical results are shown in the table. After two weeks of continuous use of the bath oil for aromatherapy, the volunteers' overall sleep quality improved, and fatigue, tension, and anxiety were reduced to some extent. After another two weeks of continuous use, the volunteers' symptoms of tension, palpitations, fatigue, and weakness were further reduced. The subjects' total SAS scores were all below 50, indicating relief of anxiety symptoms.

[0035] 3. Evaluation of moisturizing effect 3.1. Experimental procedure: Seventy volunteers were selected and divided into seven groups of ten each. They used the bath oils from Example 1, Example 5, Example 6, Comparative Example 1, Comparative Example 2, Comparative Example 3, and the blank group to bathe once a day for two consecutive weeks. Skin moisture content was measured using a skin moisture meter before use and on the 1st, 3rd, 7th, and 14th days after use.

[0036] Table 4 Test Results ; Reference photos of users at different times after using the product in Example 1 Figures 1 to 3 ;in Figure 1 This is a photo taken before use. Figure 2 This photo was taken on the 7th day after use. Figure 3 This photo was taken 14 days after use. The test results above show that: The product of this invention has a good moisturizing effect. When the essential oils of Amomum villosum and clove buds are used in combination, the effect can be further enhanced, showing obvious synergy.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. Application of Yangchun Sandalwood Essential Oil in the Preparation of Cosmetics with Moisturizing Function.

2. The application according to claim 1, characterized in that, The cosmetics mentioned are shower gels, shower oils, moisturizing essential oils, or soaps used for skin cleansing.

3. A cosmetic product with moisturizing function, characterized in that, It contains moisturizing essential oils, including Yangchunsha essential oil.

4. The cosmetic product according to claim 3, characterized in that, The moisturizing essential oil also includes clove bud essential oil, and the weight ratio of the sand peony essential oil to the clove bud essential oil is 5~40:2~8.

5. The cosmetic product according to claim 3, characterized in that, It also includes auxiliary oils, which are one or more of grape seed oil, sunflower seed oil, camellia seed oil, and caprylic / capric triglycerides.

6. The cosmetic product according to claim 5, characterized in that, The weight ratio of Yangchun Sandalwood essential oil to auxiliary oil is 5~40:30~55.

7. The cosmetic product according to claim 3, characterized in that, Cosmetics include shower gel, shower oil, moisturizing essential oil, or soap used for skin cleansing.

8. The cosmetic product according to claim 3, characterized in that, The concentration of moisturizing essential oil in the cosmetic is 7-40%.

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