Compound essential oil for alleviating skin aging and preparation method therefor

Abstract

Compound essential oil for alleviating skin aging and a preparation method therefor. The compound essential oil comprises the following components in parts by weight: 60-70 parts of oleic acid, 10-20 parts of linoleic acid, 10-20 parts of palmitic acid, 1-10 parts of stearic acid, 0.1-0.8 parts of cis-11-eicosenoic acid, 0.1-0.8 parts of α-copaene, 0.1-0.6 parts of linolenic acid, 0.1-0.5 parts of α-pinene, 0.1-0.5 parts of trans-caryophyllene, 0.1-0.5 parts of eicosanoic acid, 0.1-0.4 parts of linalool, 0.01-0.4 parts of (+)-δ-cadinene, 0.01-0.3 parts of limonene, 0.01-0.3 parts of behenic acid, 0.01-0.3 parts of palmitoleic acid, 0.01-0.3 parts of β-cedrene, 0.01-0.2 parts of tetracosanoic acid, 0.01-0.2 parts of β-pinene, 0.01-0.1 parts of 3-thujene, 0.01-0.1 parts of myristic acid, 0.01-0.1 parts of α-humulene, 0.01-0.1 parts of (-)-α-gurjunene, 0.01-0.1 parts of α-cedrene, and 0.01-0.1 parts of p-cymene. The compound essential oil is derived from natural and green raw materials, can effectively avoid side effects while treating skin aging, and thus has good safety.

Description

Compound essential oil for alleviating skin aging and preparation method thereof Technical Field

[0001] The present invention relates to the technical field of skin care products, and in particular to a compound essential oil for alleviating skin aging and a preparation method thereof. Background Art

[0002] Due to the rapid development of today's society, changes in the internal and external environment, and increased mental stress are leading to an increasing number of women experiencing premature aging. Women aged 40 to 50, in particular, experience a comprehensive aging phase due to declining estrogen levels, increased iron deposition, and excessive collagen loss. This aging process becomes increasingly noticeable. Skin aging not only affects beauty but can also lead to numerous skin conditions, such as pruritus and keratosis pilaris. Wrinkles, a key sign of skin aging, are a key focus of anti-aging efforts.

[0003] Currently, there are many methods for treating aging, such as: (1) Skin care product repair therapy: using skin care products containing antioxidants such as vitamin A, vitamin E, and vitamin C to resist the damage of ultraviolet rays and other free radicals, help fade fine wrinkles, promote collagen deposition, and improve the physiological function of the skin, thereby achieving the purpose of anti-aging. However, in recent years, anti-aging cosmetics have had problems such as ineffectiveness, long duration of action, and lack of standardized raw materials, which can easily cause other skin health problems.

[0004] (2) Estrogen replacement therapy: Transdermal estrogen supplementation therapy, such as Itelite, replenishes epidermal growth factor, cytoprotective factor, and cytokines needed for skin cell renewal or repair, thereby keeping skin cells in a normal, youthful, and healthy state. However, this therapy can increase the risk of heart disease, stroke, blood clots, endometrial cancer, and breast cancer.

[0005] (3) Diet therapy: By supplementing the body's intake of foods rich in antioxidant vitamins, special antioxidant nutrients, and trace elements, such as honey, peanuts, sesame seeds, ginger, turtles, beans, apples, etc., the purpose of beauty and anti-aging can be achieved. However, the progress of diet therapy is slow and requires persistence.

[0006] In general, there are various anti-aging drugs and skin care products with moisturizing and beauty functions on the market, but there are problems such as poor efficacy, many adverse reactions, inconvenience in use, and high prices. In addition, most skin care products contain more or less chemical raw materials.

[0007] In recent years, as consumers' preferences for natural, green, and safe consumption have grown, they have placed higher demands on skincare products. Current research focuses on how to effectively prevent the "secondary damage" of chemical ingredients to the skin and use pure natural plant ingredients to combat skin aging. Summary of the Invention

[0008] The purpose of the present invention is to provide a compound essential oil for alleviating skin aging and a preparation method thereof, so as to obtain an essential oil with anti-aging function. The essential oil has pure natural ingredients and has the advantages of being natural and environmentally friendly, highly safe, treating both the symptoms and the root causes, being easy to absorb, highly safe, and easy to use, and can effectively avoid the "secondary damage" of chemical raw materials to the skin.

[0009] To achieve the above objectives, the technical solutions of the present invention are as follows:

[0010] A compound essential oil for alleviating skin aging comprises the following components in parts by weight: 60-70 parts of oleic acid, 10-20 parts of linoleic acid, 10-20 parts of palmitic acid, 1-10 parts of stearic acid, 0.1-0.8 parts of cis-11-eicosenoic acid, 0.1-0.8 parts of α-copaene, 0.1-0.6 parts of linolenic acid, 0.1-0.5 parts of α-pinene, 0.1-0.5 parts of trans-caryophyllene, 0.1-0.5 parts of eicosanoic acid, 0.1-0.4 parts of linalool, and 0.01-0. 4 parts, limonene 0.01-0.3 parts, behenic acid 0.01-0.3 parts, palmitoleic acid 0.01-0.3 parts, β-cedrene 0.01-0.3 parts, tetracosanoic acid 0.01-0.2 parts, β-pinene 0.01-0.2 parts, 3-thujene 0.01-0.1 parts, myristic acid 0.01-0.1 parts, α-humulene 0.01-0.1 parts, (-)-α-gulurene 0.01-0.1 parts, α-cedrene 0.01-0.1 parts, p-cymene 0.01-0.1 parts.

[0011] Furthermore, the compound essential oil for alleviating skin aging comprises the following components in parts by weight: 62-68 parts of oleic acid, 12-18 parts of linoleic acid, 10-15 parts of palmitic acid, 3-8 parts of stearic acid, 0.2-0.7 parts of cis-11-eicosenoic acid, 0.1-0.5 parts of α-copaene, 0.1-0.5 parts of linolenic acid, 0.1-0.4 parts of α-pinene, 0.1-0.4 parts of trans-caryophyllene, 0.1-0.4 parts of eicosanoic acid, 0.1-0.3 parts of linalool, and 0.01-0.2 parts of (+)-δ-cuberene. , limonene 0.01-0.2 parts, behenic acid 0.01-0.1 parts, palmitoleic acid 0.01-0.1 parts, β-cedrene 0.01-0.1 parts, tetracosanoic acid 0.01-0.1 parts, β-pinene 0.01-0.1 parts, 3-thujene 0.01-0.05 parts, myristic acid 0.01-0.05 parts, α-humulene 0.01-0.05 parts, (-)-α-gulurene 0.01-0.05 parts, α-cedrene 0.01-0.05 parts, p-cymene 0.01-0.05 parts.

[0012] The compound essential oil for alleviating skin aging is prepared by mixing essential oils extracted from Himalayan cedar branches and leaves, rock rose branches and leaves, frankincense resin, lavender flowers, helichrysum flowers, white orchid flowers, jasmine flowers, bitter orange leaves, rosewood wood, argan kernels, camellia seeds, and cactus seeds.

[0013] The method for preparing the compound essential oil for alleviating skin aging of the present invention comprises the following steps:

[0014] a. Take equal masses of Himalayan cedar branches and leaves, frankincense resin, rock rose branches and leaves, lavender flowers, helichrysum flowers, bitter orange leaves, rosewood wood and white orchid flowers, clean them and crush them separately to obtain corresponding solid plant fragments, extract each solid plant fragment separately by steam distillation, filter the extracted products and collect the second filtrate to obtain Himalayan cedar essential oil, frankincense essential oil, rock rose essential oil, lavender essential oil, helichrysum essential oil, bitter orange leaf essential oil, rosewood essential oil, and white orchid essential oil, respectively;

[0015] b. Take the jasmine flowers of the raw materials in step a) of equal quality, clean them, and extract them by supercritical extraction to obtain jasmine essential oil;

[0016] c. Take the raw materials in step a) of the same quality as argan nuts, camellia seeds, and cactus seeds, clean them and crush them, and then extract them by cold pressing to obtain argan oil, camellia seed oil, and cactus seed oil, respectively;

[0017] d. The Himalayan cedarwood essential oil, frankincense essential oil, rock rose essential oil, lavender essential oil, helichrysum essential oil, petitgrain essential oil, rosewood essential oil, white orchid essential oil, jasmine essential oil, argan oil, camellia seed oil, and cactus seed oil obtained above were mixed to obtain essential oils.

[0018] Preferably, in step a), when the steam distillation method is used to extract the essential oils of each plant, the mass ratio of water to the crushed plant solid fragments is 4 to 6:1.

[0019] Preferably, in step b), when extracting the plant essential oil by supercritical extraction, the supercritical fluid used is CO2.

[0020] Preferably, the specific operating steps of extraction using supercritical extraction are: using cooling water to cool CO2 into a liquid state, and using a high-pressure pump to push the liquid CO2 into a supercritical extraction device to ensure that the CO2 reaches a supercritical condition and becomes a CO2 supercritical fluid; using a preheater to preheat jasmine flowers and sending them into the supercritical extraction device, fully contacting the CO2 supercritical fluid and jasmine flowers in the supercritical extraction device, and dissolving the target components in the jasmine flowers; separating the CO2 supercritical fluid and the jasmine flower extract into gas and liquid in a separator, so that the CO2 becomes gaseous and the jasmine flower extract remains in liquid form; collecting the liquid phase component, which is jasmine essential oil.

[0021] Preferably, in step c), the specific process of extracting plant essential oil by cold pressing is: physical pressing by machine → separating the oil by centrifugal separator → filtering the extracted product and collecting the second filtrate, and the obtained second filtrate is the corresponding essential oil.

[0022] Preferably, the temperature during the physical pressing process does not exceed 60°C.

[0023] The α-pinene in the compound essential oil for alleviating skin aging of the present invention can induce DNA damage by generating reactive oxygen species, thereby increasing lipid peroxidation to destroy cell membrane integrity and improve oxidase levels, ultimately producing an antioxidant effect. Linalool can scavenge free radicals, reduce peroxidation reactions, and exert an anti-aging effect. The remaining components also have certain antioxidant and ultraviolet radiation damage-reducing effects. The combination of the various components has excellent anti-aging properties, has good efficacy for dry skin, fine lines, and sagging skin caused by aging, is easy to use, and has a wide range of application value.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The compound essential oil of the present invention combines a plurality of plant essential oils with anti-aging functions. The plant essential oils are naturally green in source, can effectively avoid the occurrence of side effects while treating skin aging problems, and has good safety.

[0026] The compound essential oil obtained by the present invention can be administered in the form of an external preparation, for example, by transdermal administration to the affected area. During use, the essential oil can directly penetrate the corneal layer of the skin and the adnexal structures of the skin into the subcutaneous capillaries, making it convenient and simple to use.

[0027] The present invention uses pure natural plant extraction to obtain the compound essential oil with anti-aging function. The raw materials used are all common plants in nature, with a wide source and low cost. The extraction method is convenient, economical, and efficient, and the overall cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] FIG1 is a TIC chromatogram of the essential oil prepared according to the preparation method provided by the present invention using the GC-MS detection method.

[0029] FIG2 is a bar graph showing the improvement of dry lines / fine lines in the test group after using the essential oil of the present invention.

[0030] FIG3 is a bar graph showing the improvement of obvious wrinkles on the skin of the subjects after using the essential oil of the present invention.

[0031] FIG4 is a bar graph showing the improvement of dry and dehydrated skin in the test subjects after using the essential oil of the present invention.

[0032] FIG5 is a bar graph showing improvement in dull skin of the subjects after using the essential oil of the present invention.

[0033] FIG6 is a bar graph showing the improvement of uneven skin tone in the test subjects after using the essential oil of the present invention.

[0034] FIG7 is a bar graph showing the improvement of dark yellow skin color in the test group after using the essential oil of the present invention.

[0035] FIG8 is a bar graph showing the improvement in skin laxity / lack of elasticity in the subjects after using the essential oil of the present invention.

[0036] FIG9 is a bar graph showing the improvement of rough / unsophisticated skin of the subjects after using the essential oil of the present invention.

[0037] 10 to 12 are comparisons of facial photographs of the test subjects before and after using the essential oil of the present invention. DETAILED DESCRIPTION

[0038] The present invention will be further explained below with reference to specific examples. The following examples are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. The experimental methods in the following examples where specific conditions are not specified are generally performed under conventional conditions.

[0039] 1. Source of Materials:

[0040] The Himalayan cedar, frankincense, rock rose, lavender, helichrysum, bitter orange, rosewood, white orchid, jasmine, argan, camellia, and cactus used in the following examples all comply with the relevant provisions under the various medicinal material items of the main text of the Chinese Pharmacopoeia (2015 edition) Volume 1. Before feeding, the ingredients were identified as being consistent with their names and meeting quality standards. Essential oils were extracted from the branches and leaves of Himalayan cedar and rock rose, the resin of frankincense, the flowers of lavender, helichrysum, white orchid, and jasmine, the leaves of bitter orange, the timber of rosewood, the kernels of argan, and the seeds of camellia and cactus.

[0041] 2. Specific embodiments

[0042] Example 1 Preparation method of compound essential oil for alleviating skin aging:

[0043] a. Take 100g of Himalayan cedar branches and leaves, frankincense resin, rock rose branches and leaves, lavender flowers, helichrysum flowers, bitter orange leaves, rosewood wood and white orchid flowers, clean them and crush them separately to obtain the corresponding plant solid fragments, then, respectively, added to a distillation apparatus, added 450ml of water, and extracted the plant solid fragments by steam distillation at 30 ° C. After 300min, the heating was removed and the distillation products were collected to obtain Himalayan cedar essential oil, frankincense essential oil, rock rose essential oil, lavender essential oil, helichrysum essential oil, bitter orange leaf essential oil, rosewood essential oil, and white orchid essential oil;

[0044] b. Take 100g of jasmine flowers, clean them, and extract them using supercritical extraction. The extraction temperature is 38 ° C. CO2 is cooled to a liquid state using cooling water, and the liquid CO2 is pushed into a supercritical extraction device with a high-pressure pump to ensure that CO2 reaches supercritical conditions and becomes a CO2 supercritical fluid; jasmine flowers are preheated using a preheater and fed into a supercritical extraction device; the CO2 supercritical fluid and jasmine flowers are fully contacted in the supercritical extraction device and the target component in the jasmine flowers is dissolved; the CO2 supercritical fluid and the jasmine flower extract are rapidly separated by gas-liquid separation in a separator, CO2 rapidly becomes gaseous, and the jasmine flower extract remains in a liquid state; the liquid phase component is collected to obtain jasmine essential oil;

[0045] c. Take 100g of each of argan, camellia, and cactus seeds, clean and crush them, and then extract them using the cold pressing method to obtain argan oil, camellia seed oil, and cactus seed oil, respectively. The specific steps of the cold pressing method are: physical pressing by machine → separation of the oil by centrifugal separator → filtering the extracted product and collecting the second filtrate, which is the corresponding essential oil; when using the machine physical pressing method, the temperature does not exceed 60°C (this is the heat naturally generated by the high pressure process of the machine, without an external heat source), and it is isolated from oxygen and light.

[0046] d. The Himalayan cedarwood essential oil, frankincense essential oil, rock rose essential oil, lavender essential oil, helichrysum essential oil, petitgrain essential oil, rosewood essential oil, white orchid essential oil, jasmine essential oil, argan oil, camellia seed oil, and cactus seed oil obtained above were mixed to obtain an essential oil that relieves skin aging.

[0047] The weight parts of the essential oils of the embodiments of the present invention and the comparative examples are shown in Table 1.

[0048] Example 2 Preparation method of compound essential oil for alleviating skin aging:

[0049] a. Take 100g of Himalayan cedar branches and leaves, frankincense resin, rock rose branches and leaves, lavender flowers, helichrysum flowers, bitter orange leaves, rosewood wood and white orchid flowers, clean them and crush them separately to obtain the corresponding plant solid fragments, then, respectively, added to a distillation apparatus, added 400mL of water, and extracted the plant solid fragments by steam distillation at 30°C. After 250min, the heating was removed and the distillation products were collected to obtain Himalayan cedar essential oil, frankincense essential oil, rock rose essential oil, lavender essential oil, helichrysum essential oil, bitter orange leaf essential oil, rosewood essential oil, and white orchid essential oil;

[0050] b. Take 100g of jasmine flowers, clean them, and extract them using supercritical extraction. The extraction temperature is 35 ° C. CO2 is cooled to a liquid state using cooling water, and the liquid CO2 is pushed into a supercritical extraction device with a high-pressure pump to ensure that CO2 reaches supercritical conditions and becomes a CO2 supercritical fluid; jasmine flowers are preheated using a preheater and fed into a supercritical extraction device; the CO2 supercritical fluid and jasmine flowers are fully contacted in the supercritical extraction device and the target component in the jasmine flowers is dissolved; the CO2 supercritical fluid and the jasmine flower extract are rapidly separated by gas-liquid separation in a separator, CO2 rapidly becomes gaseous, and the jasmine flower extract remains in a liquid state; the liquid phase component is collected to obtain jasmine essential oil;

[0051] c. Take 100g of each of argan, camellia, and cactus seeds, clean and crush them, and then extract them using the cold pressing method to obtain argan oil, camellia seed oil, and cactus seed oil, respectively. The specific steps of the cold pressing method are: physical pressing by machine → separation of the oil by centrifugal separator → filtering the extracted product and collecting the second filtrate, which is the corresponding essential oil; when using the machine physical pressing method, the temperature does not exceed 60°C (this is the heat naturally generated by the high pressure process of the machine, without an external heat source), and it is isolated from oxygen and light.

[0052] d. The Himalayan cedarwood essential oil, frankincense essential oil, rock rose essential oil, lavender essential oil, helichrysum essential oil, petitgrain essential oil, rosewood essential oil, white orchid essential oil, jasmine essential oil, argan oil, camellia seed oil, and cactus seed oil obtained above were mixed to obtain an essential oil that relieves skin aging.

[0053] The weight parts of the essential oils of the embodiments of the present invention and the comparative examples are shown in Table 1.

[0054] Example 3 Preparation method of compound essential oil for alleviating skin aging:

[0055] a. Take 100g of Himalayan cedar branches and leaves, frankincense resin, rock rose branches and leaves, lavender flowers, helichrysum flowers, bitter orange leaves, rosewood wood and white orchid flowers, clean them and crush them separately to obtain the corresponding plant solid fragments, then, respectively, added to a distillation apparatus, added 600mL of water, and extracted the plant solid fragments by steam distillation at 30°C. After 350min, the heating was removed and the distillation products were collected to obtain Himalayan cedar essential oil, frankincense essential oil, rock rose essential oil, lavender essential oil, helichrysum essential oil, bitter orange leaf essential oil, rosewood essential oil, and white orchid essential oil;

[0056] b. Take 100g of jasmine flowers, clean them, and extract them using supercritical extraction. The extraction temperature is 40°C. CO2 is cooled to a liquid state using cooling water, and the liquid CO2 is pushed into a supercritical extraction device with a high-pressure pump to ensure that CO2 reaches supercritical conditions and becomes a CO2 supercritical fluid; jasmine flowers are preheated using a preheater and fed into a supercritical extraction device; the CO2 supercritical fluid and jasmine flowers are fully contacted in the supercritical extraction device and the target component in the jasmine flowers is dissolved; the CO2 supercritical fluid and the jasmine flower extract are rapidly separated by gas-liquid separation in a separator, CO2 rapidly becomes gaseous, and the jasmine flower extract remains in a liquid state; the liquid phase component is collected to obtain jasmine essential oil;

[0057] c. Take 100g of each of argan, camellia, and cactus seeds, clean and crush them, and then extract them using the cold pressing method to obtain argan oil, camellia seed oil, and cactus seed oil, respectively. The specific steps of the cold pressing method are: physical pressing by machine → separation of the oil by centrifugal separator → filtering the extracted product and collecting the second filtrate, which is the corresponding essential oil; when using the machine physical pressing method, the temperature does not exceed 60°C (this is the heat naturally generated by the high pressure process of the machine, without an external heat source), and it is isolated from oxygen and light.

[0058] d. The Himalayan cedarwood essential oil, frankincense essential oil, rock rose essential oil, lavender essential oil, helichrysum essential oil, petitgrain essential oil, rosewood essential oil, white orchid essential oil, jasmine essential oil, argan oil, camellia seed oil, and cactus seed oil obtained above were mixed to obtain an essential oil that relieves skin aging.

[0059] The weight parts of the essential oils of the embodiments of the present invention and the comparative examples are shown in Table 1.

[0060] Example 4 Preparation method of compound essential oil for alleviating skin aging:

[0061] a. Take 100g of Himalayan cedar branches and leaves, frankincense resin, rock rose branches and leaves, lavender flowers, helichrysum flowers, bitter orange leaves, rosewood wood and white orchid flowers, clean them and crush them separately to obtain the corresponding plant solid fragments, then, respectively, added to a distillation apparatus, added 450mL of water, and extracted the plant solid fragments by steam distillation at 30°C. After 320min, the heating was removed and the distillation products were collected to obtain Himalayan cedar essential oil, frankincense essential oil, rock rose essential oil, lavender essential oil, helichrysum essential oil, bitter orange leaf essential oil, rosewood essential oil, and white orchid essential oil;

[0062] b. Take 100g of jasmine flowers, clean them, and extract them using supercritical extraction. The extraction temperature is 35 ° C. CO2 is cooled to a liquid state using cooling water, and the liquid CO2 is pushed into a supercritical extraction device with a high-pressure pump to ensure that CO2 reaches supercritical conditions and becomes a CO2 supercritical fluid; jasmine flowers are preheated using a preheater and fed into a supercritical extraction device; the CO2 supercritical fluid and jasmine flowers are fully contacted in the supercritical extraction device and the target component in the jasmine flowers is dissolved; the CO2 supercritical fluid and the jasmine flower extract are rapidly separated by gas-liquid separation in a separator, CO2 rapidly becomes gaseous, and the jasmine flower extract remains in a liquid state; the liquid phase component is collected to obtain jasmine essential oil;

[0063] c. Take 100g of each of argan, camellia, and cactus seeds, clean and crush them, and then extract them using the cold pressing method to obtain argan oil, camellia seed oil, and cactus seed oil, respectively. The specific steps of the cold pressing method are: physical pressing by machine → separation of the oil by centrifugal separator → filtering the extracted product and collecting the second filtrate, which is the corresponding essential oil; when using the machine physical pressing method, the temperature does not exceed 60°C (this is the heat naturally generated by the high pressure process of the machine, without an external heat source), and it is isolated from oxygen and light.

[0064] d. The Himalayan cedarwood essential oil, frankincense essential oil, rock rose essential oil, lavender essential oil, helichrysum essential oil, petitgrain essential oil, rosewood essential oil, white orchid essential oil, jasmine essential oil, argan oil, camellia seed oil, and cactus seed oil obtained above were mixed to obtain an essential oil that relieves skin aging.

[0065] The weight parts of the essential oils of the embodiments of the present invention and the comparative examples are shown in Table 1.

[0066] Example 5 Preparation method of compound essential oil for alleviating skin aging:

[0067] a. Take 100g of Himalayan cedar branches and leaves, frankincense resin, rock rose branches and leaves, lavender flowers, helichrysum flowers, bitter orange leaves, rosewood wood and white orchid flowers, clean them and crush them separately to obtain the corresponding plant solid fragments, then, respectively, added to a distillation apparatus, added 500mL of water, and extracted the plant solid fragments by steam distillation at 30°C. After 300min, the heating was removed and the distillation products were collected to obtain Himalayan cedar essential oil, frankincense essential oil, rock rose essential oil, lavender essential oil, helichrysum essential oil, bitter orange leaf essential oil, rosewood essential oil, and white orchid essential oil;

[0068] b. Take 100g of jasmine flowers, clean them, and extract them using supercritical extraction. The extraction temperature is 37°C. CO2 is cooled to a liquid state using cooling water, and the liquid CO2 is pushed into a supercritical extraction device with a high-pressure pump to ensure that CO2 reaches supercritical conditions and becomes a CO2 supercritical fluid; jasmine flowers are preheated using a preheater and fed into a supercritical extraction device; the CO2 supercritical fluid and jasmine flowers are fully contacted in the supercritical extraction device and the target component in the jasmine flowers is dissolved; the CO2 supercritical fluid and the jasmine flower extract are rapidly separated by gas-liquid separation in a separator, CO2 rapidly becomes gaseous, and the jasmine flower extract remains in a liquid state; the liquid phase component is collected to obtain jasmine essential oil;

[0069] c. Take 100g of each of argan, camellia, and cactus seeds, clean and crush them, and then extract them using the cold pressing method to obtain argan oil, camellia seed oil, and cactus seed oil, respectively. The specific steps of the cold pressing method are: physical pressing by machine → separation of the oil by centrifugal separator → filtering the extracted product and collecting the second filtrate, which is the corresponding essential oil; when using the machine physical pressing method, the temperature does not exceed 60°C (this is the heat naturally generated by the high pressure process of the machine, without an external heat source), and it is isolated from oxygen and light.

[0070] d. The Himalayan cedarwood essential oil, frankincense essential oil, rock rose essential oil, lavender essential oil, helichrysum essential oil, petitgrain essential oil, rosewood essential oil, white orchid essential oil, jasmine essential oil, argan oil, camellia seed oil, and cactus seed oil obtained above were mixed to obtain an essential oil that relieves skin aging.

[0071] The weight parts of the essential oils of the embodiments of the present invention and the comparative examples are shown in Table 1.

[0072] 3. Product usage effect:

[0073] The embodiment with the best overall effect was selected for population testing.

[0074] (1) Product name: Essential oil for alleviating skin aging prepared by the present invention.

[0075] (2) Product Usage: After cleansing your face in the morning and evening, take 5-8 drops of the compound essential oil of Example 1 on the palm of your hand and massage along the skin texture until absorbed.

[0076] (3) Frequency of use: Twice a day.

[0077] (4) Testing date: April 2023 to May 2023.

[0078] (5)Use period: 14 days.

[0079] (6) Age range of the subjects: over 25 years old.

[0080] (7) Subjects: People with skin aging problems, such as dry lines / fine lines, obvious wrinkles, dry and dehydrated skin, dull skin, uneven skin tone, dark yellow skin tone, loose skin / lack of elasticity, rough skin / rough skin, etc. Finally, 32 valid reports were obtained.

[0081] The facial skin aging symptoms of the subjects before using the essential oil are shown in Table 2. The statistical improvement of skin aging after use is shown in Figures 2 to 9.

[0082] No improvement: There is no change in skin condition (area or severity) after using the essential oil.

[0083] Slight improvement: After using the essential oil, the skin condition (area or degree) recovers by 0%-30%.

[0084] Improvement: After using essential oils, skin condition (area or degree) recovered by 31%-70%.

[0085] Significant improvement: After using the essential oil, the skin condition (area or degree) recovered by 71-100%.

[0086] Symptoms disappear: After using the essential oil, the skin condition (area or degree) is completely restored.

[0087] FIG2 shows the improvement of dry lines and fine lines in the test group after using the essential oil of the present invention, and the improvement rate of mild and above lines reaches 93%.

[0088] FIG3 shows the improvement of obvious wrinkles on the skin of the test group after using the essential oil of the present invention, and the improvement rate of slight and above wrinkles reaches 96%.

[0089] FIG4 shows the improvement of dry and dehydrated skin in the test group after using the essential oil of the present invention, and the improvement rate of mild and above skin dryness reaches 93%.

[0090] FIG5 shows the improvement of dull skin in the test group after using the essential oil of the present invention, and the improvement rate of mild and above skin darkening reaches 84%.

[0091] FIG6 shows the improvement of uneven skin tone in the test group after using the essential oil of the present invention, and the improvement rate of mild and above skin tone reaches 70%.

[0092] FIG7 shows the improvement of dark yellow skin color in the test group after using the essential oil of the present invention, and the improvement rate of slight or above reaches 79%.

[0093] FIG8 shows the improvement of skin laxity / lack of elasticity in the test group after using the essential oil of the present invention, and the improvement rate of slight or above reached 84%.

[0094] FIG9 shows the improvement of rough / rough skin of the test subjects after using the essential oil of the present invention, and the improvement rate of slight or above reaches 88%.

[0095] Figures 10 to 12 are comparisons of facial photos of the test subjects before and after use. It can be seen from the pictures that after using the essential oil of the present invention, the symptoms of facial skin aging are effectively improved.

[0096] The results above indicate that a significant number of participants experienced dull skin and a sallow complexion. Using the essential oils provided in this study significantly improved all of these facial skin aging symptoms. Furthermore, no side effects were observed in the participants.

[0097] The above description is merely an example of the implementation of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

[0098] Table 1

[0099] Table 2

Claims

1. A compound essential oil for alleviating skin aging, characterized in that: The invention comprises the following components in parts by weight: 60-70 parts of oleic acid, 10-20 parts of linoleic acid, 10-20 parts of palmitic acid, 1-10 parts of stearic acid, 0.1-0.8 parts of cis-11-eicosenoic acid, 0.1-0.8 parts of α-copaene, 0.1-0.6 parts of linolenic acid, 0.1-0.5 parts of α-pinene, 0.1-0.5 parts of trans-caryophyllene, 0.1-0.5 parts of eicosanoic acid, 0.1-0.4 parts of linalool, 0.01-0.4 parts of (+)-δ-cuberene, 0. 0.01~0.3 parts, behenic acid 0.01~0.3 parts, palmitoleic acid 0.01~0.3 parts, β-cedrene 0.01~0.3 parts, tetracosanoic acid 0.01~0.2 parts, β-pinene 0.01~0.2 parts, 3-thujacene 0.01~0.1 parts, myristic acid 0.01~0.1 parts, α-humulene 0.01~0.1 parts, (-)-α-gulurene 0.01~0.1 parts, α-cedrene 0.01~0.1 parts, p-cymene 0.01~0.1 parts.

2. the compound essential oil for alleviating skin aging as claimed in claim 1, is characterized in that, The invention comprises the following components in parts by weight: 62-68 parts of oleic acid, 12-18 parts of linoleic acid, 10-15 parts of palmitic acid, 3-8 parts of stearic acid, 0.2-0.7 parts of cis-11-eicosenoic acid, 0.1-0.5 parts of α-copaene, 0.1-0.5 parts of linolenic acid, 0.1-0.4 parts of α-pinene, 0.1-0.4 parts of trans-caryophyllene, 0.1-0.4 parts of eicosanoic acid, 0.1-0.3 parts of linalool, 0.01-0.2 parts of (+)-δ-cuberene, 0.01-0.2 parts of limonene. 0.2 parts, 0.01-0.1 parts of behenic acid, 0.01-0.1 parts of palmitoleic acid, 0.01-0.1 parts of β-cedrene, 0.01-0.1 parts of tetracosanoic acid, 0.01-0.1 parts of β-pinene, 0.01-0.05 parts of 3-thujene, 0.01-0.05 parts of myristic acid, 0.01-0.05 parts of α-humulene, 0.01-0.05 parts of (-)-α-gulurene, 0.01-0.05 parts of α-cedrene, and 0.01-0.05 parts of p-cymene.

3. The compound essential oil for alleviating skin aging as claimed in claim 1 or 2, wherein A blend of essential oils extracted from Himalayan cedar branches and leaves, rock rose branches and leaves, frankincense resin, lavender flowers, helichrysum flowers, white orchid flowers, jasmine flowers, bitter orange leaves, rosewood wood, argan nuts, camellia seeds, and cactus seeds.

4. the preparation method of the compound essential oil for alleviating skin aging as described in claim 1 or 2 or 3, is characterized in that, The steps include: a. Take equal masses of Himalayan cedar branches and leaves, frankincense resin, rock rose branches and leaves, lavender flowers, helichrysum flowers, bitter orange leaves, rosewood wood and white orchid flowers, clean them and crush them separately to obtain corresponding solid plant fragments, extract each solid plant fragment separately by steam distillation, filter the extracted products and collect the second filtrate to obtain Himalayan cedar essential oil, frankincense essential oil, rock rose essential oil, lavender essential oil, helichrysum essential oil, bitter orange leaf essential oil, rosewood essential oil, and white orchid essential oil, respectively; b. Take the jasmine flowers of the raw materials in step a) of equal quality, clean them, and extract them by supercritical extraction to obtain jasmine essential oil; c. Take the raw materials in step a) of the same quality as argan nuts, camellia seeds, and cactus seeds, clean them and crush them, and then extract them by cold pressing to obtain argan oil, camellia seed oil, and cactus seed oil, respectively; d. The Himalayan cedarwood essential oil, frankincense essential oil, rock rose essential oil, lavender essential oil, helichrysum essential oil, petitgrain essential oil, rosewood essential oil, white orchid essential oil, jasmine essential oil, argan oil, camellia seed oil, and cactus seed oil obtained above were mixed to obtain essential oils.

5. The preparation method according to claim 4, characterized in that: In step a), when the steam distillation method is used to extract the essential oils of each plant, the mass ratio of water to the crushed plant solid fragments is 4 to 6:

1.

6. The preparation method according to claim 4, wherein: In step b), when extracting the plant essential oil by supercritical extraction, the supercritical fluid used is CO2.

7. The preparation method according to claim 6, characterized in that: The specific operation steps of the supercritical extraction method are as follows: using cooling water to cool the CO2 into a liquid state, pushing the liquid CO2 into a supercritical extraction device with a high-pressure pump to ensure that the CO2 reaches a supercritical condition and becomes a CO2 supercritical fluid; using a preheater to preheat the jasmine flowers and feeding them into the supercritical extraction device, fully contacting the CO2 supercritical fluid and the jasmine flowers in the supercritical extraction device, and dissolving the target components in the jasmine flowers; separating the CO2 supercritical fluid and the jasmine flower extract into gas and liquid in a separator, so that the CO2 becomes gaseous and the jasmine flower extract remains in a liquid state; Collect the liquid phase component, which is jasmine essential oil.

8. The preparation method according to claim 4, wherein: In step c), the specific process of extracting plant essential oil by cold pressing is: physical pressing by machine → separating the oil by centrifugal separator → filtering the extracted product and collecting the second filtrate, and the obtained second filtrate is the corresponding essential oil.

9. The preparation method according to claim 8, characterized in that: The temperature during the physical pressing process of the machine does not exceed 60°C.

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