Skin moistening essence containing agilawood essential oil

Abstract

The invention discloses a skin moistening essence containing agilawood essential oil, and relates to the technical field of skin moistening essences, the skin moistening essence is prepared from the following raw materials in parts by mass: 0.2-0.4 part of a humectant, 0.5-1 part of an emulsifier, 0.8-1 part of a pH regulator, 0.05-0.1 part of a thickener, 0.6-0.9 part of a skin conditioner, 0.8-1 part of agilawood essential oil, 1.6-2 parts of an agilawood extracting solution and 80-95 parts of water, and the skin moistening essence has the effects of moisturizing, soothing skin, brightening skin and the like.

Description

Technical Field

[0001] The invention relates to the technical field of skin moisturizing essence, in particular to a skin moisturizing essence containing agarwood essential oil. Background Art

[0002] Essence is a skin care product commonly used for facial care. It often contains effective ingredients such as plant extracts. Different effective ingredients can achieve different effects such as anti-aging, anti-wrinkle, moisturizing, whitening, and freckle removal.

[0003] Agarwood essential oil is extracted from precious agarwood and has multiple benefits for the human body, such as sleep, anti-inflammatory, anti-oxidation and skin soothing. Agarwood essential oils obtained by different extraction methods have differences in smell and composition. Currently, there are few studies on the application of agarwood essential oil in essences, and the strong volatility of essential oils limits its application in essences. Summary of the invention

[0004] The invention provides a skin moisturizing essence containing agarwood essential oil. The agarwood essential oil is applied to the skin moisturizing essence to increase the effects of the skin moisturizing essence in terms of moisturizing, skin brightening and skin soothing.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] A skin moisturizing essence containing agarwood essential oil, characterized in that it comprises the following raw materials in parts by weight: 0.2-0.4 parts of moisturizing agent, 0.5-1 parts of emulsifier, 0.8-1 parts of pH adjuster, 0.05-0.1 parts of thickener, 0.6-0.9 parts of skin conditioner, 0.8-1 parts of agarwood essential oil, 1.6-2 parts of agarwood extract and 80-95 parts of water;

[0007] The preparation method of the agarwood essential oil and the agarwood extract comprises the following steps:

[0008] (1) crushing the agarwood and sieving through 20 mesh;

[0009] (2) Add agarwood sawdust to 10 times the mass of salt water, stir for 20 to 30 minutes, microwave for 2 to 3 minutes at a power of 300 to 350 W, and let stand to room temperature;

[0010] (3) subjecting the mixture of salt water and agarwood sawdust to steam distillation extraction, condensing and standing, and collecting to obtain agarwood essential oil;

[0011] (4) Add the agarwood sawdust extracted in step (3) to deionized water, ultrasonicate for 20 to 30 minutes at room temperature, then add the complex enzyme, continue ultrasonication at 35 to 40° C. for 6 to 8 hours, inactivate the enzyme with boiling water, centrifuge, remove the filter residue, and perform vacuum distillation on the collected upper liquid to obtain an agarwood extract.

[0012] Before the agarwood is crushed in step (1), it is first freeze-dried to remove moisture, making it easier to crush and screen. In step (2), the agarwood chips are heated by microwaves, which can quickly destroy the cell structure of the agarwood, facilitate the subsequent essential oil extraction, and improve the extraction rate. The use of salt water as a microwave medium will not affect the composition of the agarwood chips on the one hand, and can be directly used in the subsequent steam distillation extraction on the other hand, killing two birds with one stone.

[0013] Steam distillation extraction will not affect the original ingredients of agarwood, and can retain the original aroma of volatile substances in agarwood. Adding the extracted agarwood essential oil to the moisturizing essence can increase the fragrance of the moisturizing essence. There are more aroma components in agarwood essential oil. Compared with added ingredients such as essences, it can make the aroma of the moisturizing essence more layered and natural, and the moisturizing essence is more fragrant. At the same time, adding agarwood essential oil to the moisturizing essence makes the moisturizing essence have certain anti-inflammatory, antibacterial, antioxidant and skin soothing effects.

[0014] Steam distillation has extracted most of the sesquiterpenes and other aromatic components in agarwood chips, but there are still many non-aromatic components that have not been extracted. Therefore, enzymatic hydrolysis is used to further process the agarwood chips. After enzymatic hydrolysis, agarwood can release more effective ingredients and enzymatic small molecules, which are more conducive to human skin absorption. At the same time, it also increases the extraction rate of agarwood, so that agarwood can be fully utilized.

[0015] Enzymatic hydrolysis under ultrasonic conditions increases the contact between agarwood sawdust and the complex enzyme, which is more conducive to enzymatic hydrolysis.

[0016] As a preferred embodiment, in step (4), the complex enzyme is at least one of cellulase and pectinase.

[0017] As a preferred embodiment, in step (4), the mass ratio of the agarwood chips to the deionized water is 1:(9-10).

[0018] As a preferred embodiment, the raw materials of the moisturizing essence also include porous nano-silica. In step (3), porous nano-silica is added to agarwood essential oil and ultrasonicated for 20 to 30 minutes. The mass ratio of the agarwood essential oil to the porous nano-silica is 1:(0.01 to 0.02).

[0019] Porous nano-silica has a large specific surface area and can strongly adsorb agarwood essential oil. Under an ultrasonic environment, porous nano-silica will not agglomerate, but will be soaked and adsorbed by agarwood essential oil. The specific surface area of ​​porous nano-silica that has adsorbed agarwood essential oil decreases, and the agglomeration phenomenon disappears. Porous nano-silica can slow down the volatility of agarwood essential oil.

[0020] As a preferred embodiment, the moisturizing agent is at least one of glycerin, sodium hyaluronate, glycerol polyether, sorbitol and butylene glycol.

[0021] As a preferred embodiment, the emulsifier is at least one of stearic acid, lecithin and lauryl alcohol.

[0022] As a preferred embodiment, the pH regulator is at least one of arginine, citric acid and sodium citrate.

[0023] As a preferred embodiment, the thickener is at least one of carbomer, xanthan gum and hydroxyethyl cellulose.

[0024] As a preferred embodiment, the skin conditioning agent is at least one of palmitoyl tripeptide-5, acetyl hexapeptide-8 and collagen.

[0025] As a preferred solution, the raw materials of the moisturizing essence also include 0.1 to 0.2 parts of vitamin E.

[0026] The beneficial effects of the present invention are:

[0027] Microwave heating of agarwood chips can quickly destroy the cell structure of agarwood and improve the extraction rate. Steam distillation can retain the original aroma of volatile substances in agarwood. Adding the extracted agarwood essential oil to the skin essence can increase the fragrance of the skin essence. The agarwood chips are further treated by enzymatic hydrolysis. After enzymatic hydrolysis, agarwood can release more effective ingredients and enzymatic small molecules, which are more conducive to human skin absorption. At the same time, it also increases the extraction rate of agarwood, making full use of agarwood. Adding a certain amount of agarwood essential oil and agarwood extract to the skin essence can enhance the effect of the skin essence in moisturizing, soothing and brightening the skin. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects solved by the invention more clearly understood, the invention is further described below in combination with tables and embodiments.

[0029] Embodiments 1 to 5

[0030] The raw materials were weighed respectively according to the ratios in Table 1 below, and then agarwood essential oil, agarwood extract and skin moisturizing essence were prepared according to the preparation method after Table 1, and corresponding skin moisturizing essences of different embodiments were obtained, as shown in Table 1 for details:

[0031] Table 1 Proportion table of the skin moisturizing essence of Examples 1 to 5

[0032]

[0033]

[0034]

[0035] The preparation method of the agarwood essential oil and agarwood extract of Examples 1 to 5 in Table 1 comprises the following steps: crushing the agarwood and sieving through 20 meshes; adding the agarwood sawdust to 10 times the mass of brine, stirring for 20 to 30 minutes, microwave heating at 300 W power for 2 minutes, and standing to room temperature; subjecting the mixture of the brine and the agarwood sawdust to steam distillation extraction, condensing and standing, collecting to obtain the agarwood essential oil, adding porous nano-silica to the agarwood essential oil, ultrasonicating for 20 minutes, and the mass ratio of the agarwood essential oil to the porous nano-silica is 1:0.02; taking the agarwood sawdust after the above extraction, adding it to 10 times the mass of deionized water, ultrasonicating for 20 minutes at room temperature, and then adding cellulase and pectinase in a mass ratio of 1:1, continuing ultrasonicating at 35°C for 7 hours, boiling water to kill the enzyme, centrifuging, removing the filter residue, and subjecting the collected upper liquid to reduced pressure distillation to obtain the agarwood extract.

[0036] The preparation method of the moisturizing essence of Examples 1 to 5 in Table 1 comprises the following steps: adding water, a moisturizer, a thickener, vitamin E and a skin conditioner to a blender, stirring evenly at 80° C., cooling to 50° C. after complete dissolution, adding an agarwood extract, stirring evenly, and then sequentially adding a pH adjuster and an emulsifier, continuing to stir, stirring evenly, cooling to room temperature, adding agarwood essential oil and continuing to stir, stirring evenly, and filtering to obtain a moisturizing essence.

[0037] Comparative Example 1

[0038] The difference between Comparative Example 1 and Example 1 is that the raw materials of Comparative Example 1 do not contain agarwood essential oil and porous nano-silica.

[0039] Comparative Example 2

[0040] The difference between Comparative Example 2 and Example 1 is that the raw materials of Comparative Example 2 do not contain agarwood extract.

[0041] Comparative Example 3

[0042] The difference between Comparative Example 3 and Example 1 is that the raw materials of Comparative Example 3 do not contain agarwood essential oil and agarwood extract.

[0043] Comparative Example 4

[0044] The difference between Comparative Example 4 and Example 1 is that the raw materials of Comparative Example 4 do not contain vitamin E.

[0045] Comparative Example 5

[0046] The difference between Comparative Example 5 and Example 1 is that in Comparative Example 5, porous nano-silica is not added.

[0047] Performance Testing

[0048] 1. Odor and appearance detection

[0049] Ten testers were asked to evaluate the appearance, color and smell of the skin essences of Examples 1 to 5 and Comparative Examples 1 to 5. The color level was expressed from 1 to 10 from light to dark, and the fragrance level was expressed from 1 to 5 from light to strong. The specific evaluation is shown in the following table:

[0050] Table 2 Evaluation of color and smell of the skin care essences of Examples 1 to 5 and Comparative Examples 1 to 4

[0051]

[0052]

[0053] As can be seen from Table 2, agarwood essential oil has a great influence on the color of the moisturizing essence. The higher the content of agarwood essential oil, the darker the color of the moisturizing essence. The addition of agarwood essential oil will not affect the texture of the moisturizing essence or the feeling of application.

[0054] 2. Sensory, moisturizing and skin brightening performance tests

[0055] The test subjects were selected to test the sensory, moisturizing and skin-lightening properties of the moisturizing essences of Examples 1 to 5 and Comparative Examples 1 to 5. Specifically, 5 healthy women aged 30 to 35 were selected in each group. The test subjects had dry and dark yellow skin and no history of allergies. After cleansing with water in the morning and evening, 2 ml of the sample was applied to the face and evenly applied to the face until absorbed. The sample was used continuously for 21 days. The test subjects were tested for performance before the first use, on the 7th day, on the 14th day and on the 21st day. The moisture content of the stratum corneum of the skin was detected by a skin moisture meter, and the skin moisture improvement rate was calculated. The skin color test probe was used to collect the facial brightness and skin color individual type angle, and the skin whiteness and brightness improvement rate were calculated. The test results are as follows:

[0056] Table 3 Sensory, moisturizing and skin brightening performance test results of the skin moisturizing essences of Examples 1 to 5 and Comparative Examples 1 to 5

[0057]

[0058]

[0059] As can be seen from Table 3, adding agarwood essential oil or agarwood extract alone to the skin moisturizing essence can play a certain role in moisturizing and skin lightening, but adding agarwood essential oil and agarwood extract together to the skin moisturizing essence can significantly improve the moisturizing and skin lightening properties of the skin moisturizing essence through synergistic effects, and the agarwood essential oil and agarwood extract can be obtained by graded extraction of the same agarwood, making full use of the effective ingredients of agarwood, so that the skin can fully absorb them. At the same time, adding porous nano-silica can slow down the volatilization of agarwood essential oil, increase the persistence of the aroma in the skin moisturizing essence, and make the user happy.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should fall within the protection scope of the present invention.

Claims

1. A skin moisturizing essence containing agarwood essential oil, characterized in that: The invention comprises the following raw materials in parts by weight: 0.2-0.4 parts of moisturizing agent, 0.5-1 parts of emulsifier, 0.8-1 parts of pH adjusting agent, 0.05-0.1 parts of thickener, 0.6-0.9 parts of skin conditioning agent, 0.8-1 parts of agarwood essential oil, 1.6-2 parts of agarwood extract and 80-95 parts of water; The preparation method of the agarwood essential oil and the agarwood extract comprises the following steps: (1) Grind the agarwood and sieve through 20 mesh; (2) Add agarwood sawdust to 10 times the mass of salt water, stir for 20 to 30 minutes, microwave at 300 to 350 W for 2 to 3 minutes, and let stand to room temperature; (3) subjecting the mixture of salt water and agarwood sawdust to steam distillation, condensing and standing, and collecting agarwood essential oil; (4) Add the agarwood sawdust extracted in step (3) to deionized water, ultrasonicate at room temperature for 20 to 30 minutes, then add the complex enzyme, continue ultrasonication at 35 to 40°C for 6 to 8 hours, inactivate the enzyme with boiling water, centrifuge, remove the filter residue, and perform vacuum distillation on the collected upper liquid to obtain an agarwood extract.

2. A skin moisturizing essence containing agarwood essential oil according to claim 1, characterized in that: In step (4), the complex enzyme is at least one of cellulase and pectinase.

3. A skin moisturizing essence containing agarwood essential oil according to claim 1, characterized in that: In step (4), the mass ratio of the agarwood chips to the deionized water is 1:(9-10).

4. The skin moisturizing essence containing agarwood essential oil according to claim 1, characterized in that: The raw materials of the moisturizing essence also include porous nano-silica. In step (3), porous nano-silica is added to agarwood essential oil and ultrasonicated for 20 to 30 minutes. The mass ratio of the agarwood essential oil to the porous nano-silica is 1:(0.01 to 0.02).

5. The skin moisturizing essence containing agarwood essential oil according to claim 1, characterized in that: The moisturizing agent is at least one of glycerin, sodium hyaluronate, glycerol polyether, sorbitol and butylene glycol.

6. The skin moisturizing essence containing agarwood essential oil according to claim 1, characterized in that: The emulsifier is at least one of stearic acid, lecithin and lauryl alcohol.

7. The skin moisturizing essence containing agarwood essential oil according to claim 1, characterized in that: The pH regulator is at least one of arginine, citric acid and sodium citrate.

8. The skin moisturizing essence containing agarwood essential oil according to claim 1, characterized in that: The thickener is at least one of carbomer, xanthan gum and hydroxyethyl cellulose.

9. The skin moisturizing essence containing agarwood essential oil according to claim 1, characterized in that: The skin conditioning agent is at least one of palmitoyl tripeptide-5, acetyl hexapeptide-8 and collagen.

10. The skin moisturizing essence containing agarwood essential oil according to claim 1, characterized in that: The raw materials of the skin moisturizing essence also include 0.1 to 0.2 parts of vitamin E.

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