A facial essential oil and its preparation method

Abstract

This application relates to the field of skin care products. More specifically, it relates to a facial essential oil and a preparation method thereof. A facial essential oil, by mass percentage, at least includes the following raw materials: 0.001-0.03% Cardiospermum halicacabum flower / leaf / vine extract, 0.1-1% Citrus nobilis Lour. peel oil, 0.1-1% Boswellia carterii oil, 0.8-1.5% bakuchiol, and the base oil makes up the balance; the preparation method is: mixing various raw materials until uniform to obtain the facial essential oil. This application has the advantages of reducing the greasiness brought by the facial essential oil to people with oily skin, moisturizing and controlling oil, maintaining the water-oil balance, improving skin elasticity, and rapid absorption.

Description

Technical Field

[0001] The present invention relates to the field of skin care products, and more specifically, to a facial essential oil and a preparation method thereof. Background Art

[0002] The research and development prospects of facial essential oils are very broad. As people's pursuit of nature, health and beauty increases, facial essential oils, as a natural and efficient skin care product, have been favored by more and more consumers. Facial essential oils are a skin care product, usually composed of essential oils extracted from natural plants. They can be used for facial massage, moisturizing, nourishing, improving skin quality and many other purposes. Facial essential oils have high penetration and concentrated nutrients, which can provide deep nourishment and health care for the skin.

[0003] Not only can people with dry skin use facial essential oils to improve their skin, but for people with oily skin, facial essential oils can also balance the water and oil content. However, since people with oily skin have more active sebaceous glands, there is relatively more oil on the skin surface. The thick texture of facial essential oils may hinder absorption, increase the greasiness of the skin, cause clogged pores, and cause acne, blackheads and other skin problems. Therefore, there is still room for improvement. Summary of the invention

[0004] In order to reduce the greasy feeling brought by facial essential oil to people with oily skin, the present application provides a facial essential oil and a preparation method thereof.

[0005] In the first aspect, the present application provides a facial essential oil, which adopts the following technical solution:

[0006] A facial essential oil comprises at least the following raw materials in percentage by mass: 0.001-0.03% of cycad flower / leaf / vine extract, 0.1-1% of Guangxi mandarin orange peel oil, 0.1-1% of frankincense oil, 0.8-1.5% of bakuchiol, and the balance is supplemented by base oil.

[0007] The facial essential oil prepared by combining the extract of the flower / leaf / vine of the cymbidium, the peel oil of the Guangxi mandarin orange, and the frankincense oil can effectively improve the absorption of the facial essential oil by oily skin through triple penetration enhancement.

[0008] Specifically, the natural active molecules rich in the flower / leaf / vine extracts of the Campanula ovata have excellent affinity and can act as a "vanguard" to quickly combine with the skin's surface cells, opening the skin's absorption channels like opening doors, opening the absorption channels for subsequent oil components and paving the way for penetration; this is the "first penetration".

[0009] Secondly, ingredients such as vitamin C and citric acid contained in the pericarp oil of Citrus nobilis Lour. var. shachianensis (Tanaka) H. H. Hu have the effect of softening the cutin layer. When the cutin layer becomes soft, its permeability will naturally increase, which means that the "barrier" on the skin surface is reduced, allowing the active ingredients in the essential oil to penetrate more smoothly into the deep layer of the skin; this is the "double penetration".

[0010] Finally, frankincense oil, with its excellent anti-inflammatory and repair capabilities, can not only provide deep nourishment and moisture to the skin, but also stimulate the olfactory receptors of the skin with its unique aroma molecules, further promoting the microcirculation and absorption capacity of the skin; this is the "third penetration".

[0011] These three penetration effects work synergistically with each other to form a comprehensive absorption system from the skin surface to the deep layer, ensuring that every drop of essence in the facial essential oil can be fully absorbed and utilized by the skin.

[0012] Through the triple penetration effect, after applying the facial essential oil to the face, the user can open the pores, enabling the facial essential oil to penetrate quickly and in large quantities into the skin to exert its effects, greatly reducing the greasiness of the skin and not causing problems such as pore blockage.

[0013] Moreover, in actual research, it was found that due to ROS induction caused by UVA and UVB irradiation, it led to inflammatory stress and the release of pro-inflammatory cytokines, such as PGE2 (prostaglandin E2) and MIF (melanocyte-inhibiting factor). The former can reduce the production of collagen and induce the expression of matrix metalloproteinase 1 (MMP-1) in fibroblasts. The latter is crucial for cell proliferation, angiogenesis, and differentiation. Bakuchiol can significantly reduce the levels of PGE2 and MIF in fibroblasts.

[0014] On the other hand, bakuchiol can significantly upregulate the protein level of FGF7 (fibroblast growth factor 7), indicating that it can support skin regeneration and repair by directly upregulating keratinocytes and indirectly increasing fibroblast proliferation. Another factor affecting skin regeneration potential is cell viability. The increase in the metabolism of WST-1 by bakuchiol indicates an improvement in cell viability, proliferation, and metabolic activities. Moreover, bakuchiol can increase the expression of ECM structural factors COL1A1 and COL7A1 and the ECM adhesion factor FN (fibronectin), and the latter plays an important role in wound healing.

[0015] Vitamin A plays a crucial role in the human body. It is indispensable for maintaining normal visual function, promoting cell growth and differentiation, and enhancing the immune system. However, vitamin A itself, as an unstable raw material, is easily decomposed by factors such as light, heat, and oxygen, thereby reducing its bioavailability. In addition, vitamin A also has a certain risk of allergy. Especially for those with allergic constitutions, the intake of vitamin A may trigger a series of allergic reactions, such as skin itching and difficulty breathing. Bakuchiol, as a plant-derived compound, has much higher stability than vitamin A. Bakuchiol can maintain a relatively stable state under different environmental conditions and is not easily decomposed by external factors, showing better stability and persistence. Bakuchiol can promote cell growth and differentiation and has a certain effect on maintaining skin health and promoting wound healing. At the same time, bakuchiol can also regulate the function of the immune system and enhance the body's resistance. These biological activities enable bakuchiol to replace the function of vitamin A to a certain extent. And because bakuchiol is derived from plants and its chemical structure is different from that of vitamin A, it can reduce or avoid the adverse reactions caused by vitamin A allergy, and the allergy risk of bakuchiol is much lower than that of vitamin A.

[0016] Due to the triple penetration effect, it can better cooperate with bakuchiol, play its role, and further improve the use effect.

[0017] Preferably, the mass ratio of the Cardiospermum halicacabum flower / leaf / vine extract, Citrus nobilis Lour. peel oil, and Boswellia carterii Birdw. oil is 1:(20 - 40):(20 - 40).

[0018] By adopting the above technical solution, further limiting the mass ratio of the Cardiospermum halicacabum flower / leaf / vine extract, Citrus nobilis Lour. peel oil, and Boswellia carterii Birdw. oil enables better cooperation among the triple penetration, reduces the greasiness brought by the facial essential oil, and fully exerts the role of water-oil balance. Long-term use can also improve skin elasticity, make the skin smooth, and no longer be shiny.

[0019] Preferably, the base oil includes at least one or more of squalane, jojoba seed oil, cetearyl octanoate / decanoate, and caprylic / capric triglyceride.

[0020] Preferably, the base oil is squalane, jojoba seed oil, cetearyl octanoate / decanoate, and caprylic / capric triglyceride; by mass percentage of the facial essential oil, squalane is 40 - 50%, jojoba seed oil is 25 - 35%, cetearyl octanoate / decanoate is 5 - 15%, and caprylic / capric triglyceride is 5 - 15%.

[0021] By adopting the above technical solution, the selection and proportion of the base oil are further defined to obtain an oil body that is more similar to human sebum, which is more easily absorbed by the skin and helps other active ingredients penetrate quickly at the same time. Moreover, it can also improve the fluidity of the facial essential oil, which also helps to be absorbed by the skin and reduce the greasy feeling.

[0022] Preferably, the facial essential oil further comprises seabuckthorn seed oil, rosemary leaf extract, and sunflower seed oil.

[0023] Preferably, by mass percentage of the facial essential oil, the seabuckthorn seed oil is 0.499%, the rosemary leaf extract is 0.1 - 1%, and the sunflower seed oil is 0.001 - 0.01%.

[0024] By adopting the above technical solution, the rosemary leaf extract and the sunflower seed oil have a small structure and a light texture, are easily absorbed by the skin, and will not bring a greasy feeling to the skin. Moreover, they can also promote skin metabolism and microcirculation, which is beneficial to assisting the triple penetration effect of Cardiospermum halicacabum L. flower / leaf / vine extract, Atalantia buxifolia (Poir.) Oliv. peel oil, and Boswellia carterii Birdw. The combination of the rosemary leaf extract and the sunflower seed oil can also lock in moisture for the skin, moisturize the skin, and prevent the skin from drying and aging.

[0025] Moreover, the seabuckthorn seed oil is rich in a large amount of vitamin E and unsaturated fatty acids. These components have strong antioxidant capabilities, can scavenge free radicals in the body, and inhibit the formation of melanin, thus achieving the effects of whitening and anti - aging. In addition, the seabuckthorn seed oil can also promote blood circulation, improve the skin condition, and make the skin smoother and more elastic.

[0026] The rosemary leaf extract has the effects of antioxidant, anti - aging, and anti - inflammation. It can protect the skin from damage by the external environment and reduce signs of skin aging such as wrinkles and sagging.

[0027] The vitamin E in the sunflower seed oil is also a natural antioxidant, which has the function of scavenging free radicals, thus delaying cell aging.

[0028] When the seabuckthorn seed oil, the rosemary leaf extract, and the sunflower seed oil are used in combination, they can jointly play the role of antioxidant and anti - aging. The vitamin E components of the seabuckthorn seed oil and the sunflower seed oil can act synergistically to more effectively scavenge free radicals and inhibit the generation of oxidation reactions. At the same time, the anti - inflammatory and antioxidant effects of the rosemary leaf extract can further enhance this effect. This combination can not only improve the skin condition, reduce aging signs such as wrinkles and sagging, but also protect the body from damage by free radicals from the inside out and delay the aging process.

[0029] Preferably, the facial essential oil further comprises pelargonium graveolens L'Herit. flower oil, Helichrysum bracteatum Andr. flower oil, Anthemis nobilis L. flower oil, and Citrus aurantium L. var. amara Engl. flower oil.

[0030] Preferably, according to the mass percentage of the facial essential oil, pelargonium graveolens flower oil is 0.1 - 1%, helichrysum bracteatum flower oil is 0.1 - 1%, chamomilla recutita flower oil is 0.01 - 0.1%, and neroli oil is 0.01 - 0.1%.

[0031] By adopting the above technical solution, further adding pelargonium graveolens flower oil, helichrysum bracteatum flower oil, chamomilla recutita flower oil, and neroli oil into the facial essential oil and limiting the dosage, it can better cooperate with frankincense oil, enhance the stimulation of aroma molecules on skin sensory receptors, promote skin microcirculation and absorption, thereby enhancing the water replenishing and oil control effects of the facial essential oil and reducing the greasy feeling.

[0032] In a second aspect, the present application provides a preparation method of a facial essential oil, adopting the following technical solution:

[0033] A preparation method of a facial essential oil includes the following steps: mixing various raw materials until uniform to obtain the facial essential oil.

[0034] The preparation method of the present application is simple and convenient, and is suitable for popularization and use in this field.

[0035] In summary, the present application has the following beneficial effects:

[0036] 1. Bakuchiol can significantly reduce the levels of PGE2 and MIF in fibroblasts, and can also significantly up - regulate the protein level of FGF7 (fibroblast growth factor 7), supporting skin regeneration and repair by directly up - regulating keratinocytes and indirectly increasing fibroblast proliferation; Bakuchiol can maintain a relatively stable state under different environmental conditions, is not easily decomposed by external factors, shows better stability and persistence, and can replace vitamin A and avoid or reduce adverse reactions caused by allergies.

[0037] 2. The combined use of seabuckthorn seed oil, rosemary leaf extract, and sunflower seed oil can jointly play the roles of antioxidant and anti - aging, more effectively scavenge free radicals, and inhibit the generation of oxidation reactions. The products of the present application can effectively improve the skin condition, reduce aging signs such as wrinkles and sagging, and can also protect the body from free radical damage from the inside out, delaying the aging process.

[0038] 3. The present application adopts the synergistic cooperation of cardiospermum halicacabum flower / leaf / vine extract, citrus nobilis peel oil, and frankincense oil. The facial essential oil prepared by the three - component combination can effectively improve the absorbability of oily skin to the facial essential oil through triple - penetration synergistic enhancement.

[0039] 4. The present application further limits the selection and proportion of the base oil, enabling the base oil to have a better matching effect with human sebum, promoting the more smooth absorption of active ingredients by the skin; at the same time, improving the fluidity of the facial essential oil and reducing the greasy feeling.

[0040] 5. The present application selects rosemary leaf extract and sunflower seed oil, which can effectively assist the smooth progress of triple penetration, and can lock in moisture for the skin, moisturize the skin, and prevent skin dryness and aging.

[0041] 6. Geranium maculatum flower oil, Helichrysum angustifolium flower oil, Anthemis nobilis flower oil, and bitter orange flower oil can cooperate with frankincense oil to enhance the stimulation of aroma molecules on skin sensory receptors, promote skin microcirculation and absorption, thereby enhancing the water replenishing and oil control effects of facial essential oil and reducing the greasiness. Detailed implementation mode

[0042] The following further elaborates on the present application in conjunction with embodiments.

[0043] The raw materials used in the following examples and comparative examples are all commercially available products.

[0044] Embodiment

[0045] Embodiment 1

[0046] A facial essential oil, comprising: base oil, tocopherol (vitamin E), bakuchiol, Argania spinosa kernel oil, Hippophae rhamnoides seed oil, Helianthus annuus seed oil, Rosmarinus officinalis leaf extract, octyldodecanol, Ribes nigrum seed oil, Helianthus annuus seed oil unsaponifiables, Cardiospermum halicacabum flower / leaf / vine extract, tocopheryl acetate, Pelargonium graveolens flower oil, Citrus nobilis peel oil, Boswellia carterii oil, Helichrysum angustifolium flower oil, Anthemis nobilis flower oil, Citrus aurantium amara flower oil.

[0047] The base oil is squalane, Simmondsia chinensis seed oil, cetearyl octanoate / caprate, and caprylic / capric triglyceride.

[0048] The specific dosages of each raw material are shown in Table 1.

[0049] The embodiment of the present application also discloses a preparation method of a facial essential oil, comprising the following steps:

[0050] Step 1: Mix base oil, tocopherol (vitamin E), bakuchiol, argan kernel oil, seabuckthorn seed oil, sunflower seed oil, rosemary leaf extract, octyldodecanol, blackcurrant seed oil, unsaponifiables of sunflower seed oil, cardiospermum halicacabum flower / leaf / vine extract, and tocopheryl acetate, and stir until homogeneous to obtain Component A.

[0051] Step 2: Mix pelargonium graveolens flower oil, citrus nobilis peel oil, boswellia carterii oil, helichrysum angustifolium oil, chamomilla recutita flower oil, and citrus aurantium amara flower oil, and stir until homogeneous to obtain Component B.

[0052] Step 3: Mix Component A and Component B, and stir until homogeneous to obtain facial essential oil.

[0053] Example 2

[0054] A facial essential oil, which is different from Example 1 in that the specific dosages of each raw material are different, as shown in Table 1 for details.

[0055] Example 3

[0056] A facial essential oil, which is different from Example 1 in that the specific dosages of each raw material are different, as shown in Table 1 for details.

[0057] Example 4

[0058] A facial essential oil, which is different from Example 1 in that the mass ratio of cardiospermum halicacabum flower / leaf / vine extract, citrus nobilis peel oil, and boswellia carterii oil is 1:20:40, that is, the cardiospermum halicacabum flower / leaf / vine extract is 0.005 kg, the citrus nobilis peel oil is 0.1 kg, and the boswellia carterii oil is 0.2 kg.

[0059] For specific dosages, see Table 1 for details.

[0060] Example 5

[0061] A facial essential oil, which is different from Example 1 in that the mass ratio of cardiospermum halicacabum flower / leaf / vine extract, citrus nobilis peel oil, and boswellia carterii oil is 1:40:20, that is, the cardiospermum halicacabum flower / leaf / vine extract is 0.005 kg, the citrus nobilis peel oil is 0.2 kg, and the boswellia carterii oil is 0.1 kg.

[0062] For specific dosages, see Table 1 for details.

[0063] Example 6

[0064] A facial essential oil, which is different from Example 1 in that the base oil is squalane. For specific dosages, see Table 1 for details.

[0065] Example 7

[0066] A facial essential oil, which is different from that of Example 1 in that the squalane is 25.2555 kg, the jojoba seed oil is 45 kg, the cetearyl octanoate / caprate is 25 kg, and the triglyceride caprylic / capric acid is 1 kg. For the specific dosage, please refer to Table 1.

[0067] Example 8

[0068] A facial essential oil, which is different from that of Example 1 in that the facial essential oil does not contain rosemary leaf extract and sunflower seed oil. For the specific dosage, please refer to Table 1.

[0069] Example 9

[0070] A facial essential oil, which is different from that of Example 1 in that the facial essential oil does not contain pelargonium graveolens flower oil, helichrysum italicum flower oil, chamomilla recutita flower oil, and bitter orange flower oil. For the specific dosage, please refer to Table 1.

[0071] Table 1

[0072]

[0073]

[0074] Control Example Control Example 1

[0075] A facial essential oil, which is different from that of Example 1 in that the cardiospermum halicacabum flower / leaf / vine extract is omitted.

[0076] Control Example 2

[0077] A facial essential oil, which is different from that of Example 1 in that the citrus nobilis peel oil is omitted.

[0078] Control Example 3

[0079] A facial essential oil, which is different from that of Example 1 in that the boswellia carterii oil is omitted.

[0080] Control Example 4

[0081] A facial essential oil, which is different from that of Example 1 in that the cardiospermum halicacabum flower / leaf / vine extract is 0.3 kg, the citrus nobilis peel oil is 0.001 kg, and the boswellia carterii oil is 0.004 kg.

[0082] Performance Detection Test

[0083] I. Volunteer Selection: Select 130 volunteers with oily skin aged 30 - 35, divided into 13 groups with 10 people in each group, and each group corresponds to one of the facial essential oils in Examples 1 - 9 and Control Examples 1 - 4.

[0084] The method for judging oily skin is as follows: The volunteers clean their faces thoroughly before going to bed at night and do not apply any skin care products. When they wake up the next morning, they gently press an oil-absorbing paper or a clean facial tissue on various parts of the face. If obvious oil stains appear on the paper.

[0085] II. Test method:

[0086] The left face of the volunteer is the test area, and the right face of the volunteer is the control area.

[0087] The volunteers wash their entire faces with clean water, wipe off the water droplets, and then spray toner on the entire face. After the toner is completely absorbed, 1 g of facial essential oil is evenly applied to the test area, and the control area is not treated.

[0088] The test environment is a constant temperature room at 25°C and 55%.

[0089] III. Detection items:

[0090] 1. Hydration effect: After the toner is completely absorbed by the volunteers, use a skin moisture tester to measure the water content of the test area, which is recorded as the initial water content. Then, 4 hours after applying the facial essential oil, measure the water content of the test area again, which is recorded as the water content at 4 hours.

[0091] Calculate the hydration rate according to the following formula, and record the average hydration rate of the volunteers in the same group as the data of this group in Table 2.

[0092] 2. Oil control effect: After the toner is completely absorbed by the volunteers, use a skin oil tester to measure the oil content of the test area, which is recorded as the initial oil content.

[0093] 4 hours after applying the facial essential oil, measure the oil content of the test area and the control area of the volunteer respectively, which are recorded as the oil content of the test area and the oil content of the control area.

[0094] Calculate the oil control rate according to the following formula, and record the average oil control rate of the volunteers in the same group as the data of this group in Table 2.

[0095] 3. Skin elasticity: After the toner is completely absorbed by the volunteers, use a skin elasticity tester to measure the initial R2 value; then use the facial essential oil once in the morning and once in the evening for 28 days (during which no other skin care products are used), and measure the R2 value after 28 days again.

[0096] Calculate the skin elasticity improvement rate according to the following formula, and record the average elasticity improvement rate of the volunteers in the same group as the data of this group in Table 2.

[0097] 4. Subjective evaluation: Questionnaires were distributed to the volunteers. Based on a scale of 0 - 10, they were asked to rate the freshness, skin smoothness, and absorbency. The higher the score, the better the freshness / the better the improvement in skin smoothness / the better the absorption effect.

[0098] The average score of the volunteers in the same group was recorded as the data of this group in Table 2.

[0099] Table 2

[0100]

[0101] According to the test data of Examples 1 - 9 in Table 2, it can be seen that the facial essential oil provided by the present application can provide a high level of freshness for the volunteers. The volunteers also believe that the skin can quickly absorb the facial essential oil of the present application, and it can effectively improve the water-oil balance of the skin, making the skin smooth, flat, and elastic. Comparative Examples 1 - 3 are facial essential oils prepared by omitting Cardiospermum halicacabum flower / leaf / vine extract, Atalantia buxifolia peel oil, and Boswellia carterii oil on the basis of Example 1. Their effects on moisturizing, oil control, and improving skin quality are significantly reduced, and the subjective feelings given to the volunteers are also significantly inferior to those of Example 1, with a substantial reduction in the freshness feeling. Comparative Example 4 is based on Example 1, while keeping the total amount of Cardiospermum halicacabum flower / leaf / vine extract, Atalantia buxifolia peel oil, and Boswellia carterii oil unchanged, but destroying the special dosage ratio among the three. The prepared facial essential oil cannot have good performance. Although its performance is better than that of Comparative Examples 1 - 3, its absorbency and freshness are significantly lower than those of Example 1. This shows that the Cardiospermum halicacabum flower / leaf / vine extract, Atalantia buxifolia peel oil, and Boswellia carterii oil need to be combined in specific selection and dosage to smoothly carry out the triple penetration cooperation mechanism, and none of them can be missing.

[0102] Examples 6 - 7 are based on Example 1, with the raw materials of the base oil or the relationship of the combined usage of the raw materials changed. According to the comparison of the test data of Example 1 and Examples 6 - 7 in Table 2, it can be seen that the oil control effect of the facial essential oils in Examples 6 - 7 has decreased, and the improvement effect on skin elasticity has also decreased to a certain extent. The reason for the insignificant fluctuation in the moisturizing effect of Examples 6 and 7 is that the total amount of the base oil has not been changed, and the base oil has a certain moisturizing ability, so the fluctuation is not large. The change in the performance of the facial essential oil also shows that a specific base oil can provide better conditions for the synergistic effect of Cardiospermum halicacabum flower / leaf / vine extract, Atalantia buxifolia peel oil, and Boswellia carterii oil, and can fully exert the effect of the facial essential oil.

[0103] According to the comparison of the test data of Example 1 and Examples 8 and 9 in Table 2, it can be seen that further limiting the facial essential oil to contain Rosmarinus officinalis leaf extract, Helianthus annuus seed oil, Pelargonium graveolens flower oil, Helichrysum angustifolium flower oil, Anthemis nobilis flower oil, and Citrus aurantium amara flower oil can further enhance the moisturizing and oil control effects of the facial essential oil and improve the skin condition.

[0104] This specific embodiment is only an interpretation of the present application and does not limit the present application. After reading this specification, those skilled in the art can make modifications to this embodiment that do not contribute creatively as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A facial essential oil, characterized in that, By mass percentage, it contains the following raw materials: 0.001 - 0.03% Cardiospermum halicacabum flower / leaf / vine extract, 0.1 - 1% Atalantia kwangsiensis peel oil, 0.1 - 1% frankincense oil, 0.8 - 1.5% bakuchiol, and the balance is made up by the base oil; The base oil contains one or more of squalane, jojoba seed oil, cetyl octanoate / caprate, and caprylic / capric triglyceride.

2. The facial essential oil according to claim 1, wherein: The mass ratio of the Cardiospermum halicacabum flower / leaf / vine extract, Atalantia kwangsiensis peel oil, and frankincense oil is 1:(20 - 40):(20 - 40).

3. The facial essential oil according to claim 1, characterized in that: The base oil is squalane, jojoba seed oil, cetyl octanoate / caprate, and caprylic / capric triglyceride; by mass percentage of the facial essential oil, squalane is 40 - 50%, jojoba seed oil is 25 - 35%, cetyl octanoate / caprate is 5 - 15%, and caprylic / capric triglyceride is 5 - 15%.

4. The facial essential oil according to claim 1, characterized in that: The facial essential oil further includes rosemary leaf extract and sunflower seed oil.

5. The facial essential oil according to claim 4, wherein: By mass percentage of the facial essential oil, the rosemary leaf extract is 0.1 - 1%, and the sunflower seed oil is 0.001 - 0.01%.

6. The facial essential oil according to claim 1, wherein: The facial essential oil further includes geranium oil, everlasting flower oil, chamomile oil, and neroli oil.

7. The facial essential oil according to claim 6, wherein: By mass percentage of the facial essential oil, the geranium oil is 0.1 - 1%, the everlasting flower oil is 0.1 - 1%, the chamomile oil is 0.01 - 0.1%, and the neroli oil is 0.01 - 0.1%.

8. A method for preparing the facial essential oil according to any one of claims 1-7, characterized in that, It includes the following steps: Mix all kinds of raw materials evenly to obtain the facial essential oil.

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