WO2020097982A1 - Essential oil composition for scalp care and use - Google Patents

Abstract

The present invention belongs to the field of cosmetics, and an essential oil composition for scalp care and use are disclosed. The essential oil composition is made from the following components by weight percentages: 0.05 to 10.0% of ginger essential oil; 0.1 to 5.0% of Cymbopogon citratus essential oil; 0.05 to 6.0% of tea essential oil; 0.1 to 6.0% of mastic essential oil; 0.1 to 6.0% of cedar essential oil; and the balance of basic oils. The essential oil composition of the present invention is obtained by means of extensive experimental research by the inventors under the guidance of the theory of monarch, minister, assistant and guide in traditional Chinese medicine prescriptions. In the essential oil composition of the present invention, various components are compounded in a specific proportion to achieve synergistic effects. Effects of the essential oil composition for promoting blood circulation and promoting cell growth are used for promoting hair growth, bactericidal and oil-controlling effects of the essential oil composition are used for removing scalp acne and preventing hair loss, and a moisturizing effect and an anti-free radical effect of the essential oil composition are used for achieving the effect of removing dandruff, thereby achieving the aim of scalp care.

Description

Essential oil composition for scalp care and application Technical field

The invention belongs to the field of cosmetics, and particularly relates to an essential oil composition for scalp care and its application.

Background technique

With the continuous improvement of people's living standards and quality of life, consumers have higher and higher requirements for the beauty skin care products necessary for daily life, and pay more and more attention to the influence of the "return to nature" tendency plant skin care concept.

In recent years, scalp health problems have become increasingly prominent due to factors such as accelerated life rhythm, staying up late, irregular diet, perm hair dyeing, and environmental pollution. Data from the China Health Education Association Scalp Health Research Center show that more than 60% of adults in China have scalp health problems to varying degrees. However, people's awareness of scalp care is still at a low level, and there are still few scalp care products on the market.

A healthy scalp ecological environment is maintained by three major balances: oil, flora, and metabolic balance. If the three major balanced environments are out of balance, the scalp is prone to oil and becomes greasy, harmful bacteria grow in large numbers, and itchy head appears. At the same time, the scalp cuticle is metabolized too quickly to form dandruff. In addition, the scalp is the second thinnest skin in the human body, and its aging speed is 6 times faster than that of the face. The wind, sun, dyeing, and hot air drying of the hair will cause the scalp to be dry, prone to aging, and inflammation. It will also dry the hair, split the hair, damage the scales, and make the hair fragile.

In order to solve the problems of dry scalp, aging, dry hair and frizz, and damage to hair scales, at present, rinse-off products on the market often add humectants such as glycerin and some conditioning agents such as cationic polymers or silicone oil. However, the moisturizing agent in the care products has a short residence time on the hair and is not easy to be absorbed in time, and the cationic polymer or silicone oil will be adsorbed on the scalp and hair. Long-term use will not only prevent the scalp from absorbing the effective ingredients, but also bring Abnormal metabolism of scalp microenvironment, hair is easy to greasy and so on. Remaining cleansing products can solve some hair problems, but often bring negative effects such as greasiness, sticky feel and white flakes after use.

Essential oil has a small molecular weight, can easily penetrate the skin and be absorbed, and enter the deep layer of the skin. It has a very good effect on scalp blood circulation, revitalizing hair roots and promoting hair growth. Essential oil hair care products are gradually favored by people.

CN201810008867X discloses a scalp care essential oil and its preparation process, which consists of: tea tree seeds, lavender, basil, turmeric, black sesame, Shouwu, ginseng, rosemary; the scalp care essential oil can effectively care for the scalp, using plants As the original formula, He Chinese medicine has the functions of astringing pores, promoting cell regeneration, promoting blood circulation, conditioning oily scalp, reducing the damage caused by traditional chemical shampoo to the scalp, and protecting the scalp.

CN2016108082475 discloses an oily scalp hair growth essential oil composed of: rosemary oil, geranium essential oil, lavender essential oil, sandalwood oil, ylang oil, lemon oil, eucalyptus essential oil, patchouli oil, happy sage essential oil Jojoba oil; can promote hair growth in the scalp area, inhibit excessive secretion of scalp oil, and is rich in vitamins and minerals, improve the absorption and maintenance of external water by the hair follicles, and repair the damaged keratinocytes .

CN201710940858X discloses a scalp care essential oil that effectively relieves neurogenic pruritus, which consists of manuka essential oil, tea tree essential oil, and oxidized corn oil. The scalp care essential oil of the present invention effectively relieves neurogenic stubborn itching.

Summary of the invention

In order to overcome the shortcomings and deficiencies of the prior art, the primary object of the present invention is to provide an essential oil composition for scalp care. Based on the Chinese medicine theory of Junchen Zuoshen, the present invention provides an essential oil composition having scalp blood circulation, promoting cell growth, activating hair roots to promote hair growth, and having the effect of removing scalp acne and dandruff.

Another object of the present invention is to provide the use of the above-mentioned essential oil composition for scalp care.

The object of the present invention is achieved by the following technical solutions:

An essential oil composition for scalp care, made of the following weight percent components: ginger essential oil 0.05-10.0%; citronella essential oil 0.1-5.0%; tea tree essential oil 0.05-6.0%; frankincense essential oil 0.1-6.0%; cedar essential oil 0.1 ～ 6.0%; the base oil is the balance.

Preferably, the essential oil composition for scalp care is made of the following weight percent components: ginger essential oil 0.1-8.0%; citronella essential oil 0.1-3.0%; tea tree essential oil 0.1-5.0%; frankincense essential oil 0.1-5.0 %; Cedar essential oil 0.1 to 4.0%; base oil is the balance.

Further preferably, the essential oil composition for scalp care is made of the following components by weight: ginger essential oil 1.1-2.0%; citronella essential oil 0.5-0.6%; tea tree essential oil 0.7-0.8%; frankincense essential oil 0.9- 1.3%; cedar essential oil 0.8-1.3%; base oil is the balance.

Preferably, the essential oil composition for scalp care is made of the following components by weight: ginger essential oil 1.5%; citronella essential oil 0.5%; tea tree essential oil 0.7%; frankincense essential oil 1.2%; cedar essential oil 1.1%; foundation Oil is the balance.

Preferably, the essential oil composition for scalp care is made of the following components by weight: ginger essential oil 1.2%; citronella essential oil 0.6%; tea tree essential oil 0.8%; frankincense essential oil 1.2%; cedar essential oil 1.2%; foundation Oil is the balance.

Preferably, the essential oil composition for scalp care is made of the following weight percent components: ginger essential oil 1.1%; citronella essential oil 0.5%; tea tree essential oil 0.8%; frankincense essential oil 1.3%; cedar essential oil 1.3%; foundation Oil is the balance.

Preferably, the essential oil composition for scalp care is made of the following components by weight: ginger essential oil 2.0%; citronella essential oil 0.6%; tea tree essential oil 0.7%; frankincense essential oil 0.9%; cedar essential oil 0.8%; foundation Oil is the balance.

The base oil mentioned above is a mixture of one or more of grape seed oil, wheat germ oil, olive oil and jojoba oil.

Another object of the present invention is to provide the use of the above-mentioned essential oil composition for scalp care in cosmetics.

In order to achieve this object of the present invention, the present invention adopts the following technical solutions:

An application of an essential oil composition for scalp care in the preparation of cosmetics, which contains the essential oil composition for scalp care, and the amount added in cosmetics is 0.1 to 50% in mass fraction (preferably 0.2 ~ 25%).

The present invention also provides a cosmetic for scalp care, which contains the above-mentioned essential oil composition for scalp care.

Preferably, the cosmetics contain the above-mentioned essential oil composition for scalp care in a mass fraction of 0.1 to 50% (preferably 0.2 to 25%).

The cosmetics are: liquids, lotions, creams, sprays, essences, essential oils, soaps, and care products.

Specifically, the present invention provides a scalp massage essential oil, which includes components as follows:

Component name	Quality score /%
Isododecane	margin
Dioctyl carbonate	32.4
Hydrogenated ethylhexyl oleate	0.5
Hydrogenated olive oil unsaponifiable	0.1
Vitamin E	1.0
Essential oil composition according to the invention	25.0

Specifically, the present invention provides a scalp care shampoo, including the following mass fraction components:

Component name	Quality score /%
water	margin
Cocoyl Hydrolyzed Oat Protein Potassium	28.30

Cocoyl glutamate disodium	11.60
Polyquaternium-10	0.23
Citric acid	0.45
Sodium citrate	0.05
Hydrolyzed corn starch	0.42
P-hydroxyacetophenone	0.40
Cocamide methyl MEA	0.55
Phenoxyethanol	0.45
Essential oil composition according to the invention	0.20

Specifically, the present invention provides a scalp care conditioner, which includes components as follows:

Substance name	Quality score /%
Behenyl trimethyl ammonium chloride	4.2
Glyceryl monostearate	2.1
Polydimethylsiloxane	3.2
Cetostearyl alcohol	3.4
Disodium EDTA	0.05
Essential oil composition according to the invention	10.0
P-hydroxyacetophenone	0.3
Phenoxyethanol	0.4
Deionized water	margin

Basis of the invention:

The essential oil composition for scalp care of the present invention is guided by Junchen Zuoshen's traditional Chinese medicine formula theory and obtained through extensive experimental research by the inventor. It is selected from ginger essential oil, citronella essential oil, tea tree essential oil, frankincense essential oil, cedar essential oil The best formula can be obtained by carrying out the compatibility experiment according to a specific ratio. The ginger essential oil in the composition of the present invention is a monarch medicine, which has the effects of promoting blood circulation and stasis, promoting blood circulation, and promoting hair growth; citronella essential oil and cedar essential oil are ministerial medicines, and both citronella essential oil and cedar essential oil have significant dredge pores, oil control, Sterilization and removal of scalp acne; tea tree essential oil is an adjuvant with strong antibacterial and anti-dandruff effects; frankincense essential oil is a medicine, frankincense essential oil has antibacterial properties, promotes scarring of wounds, enhances cell activity, and promotes cell regeneration.

Compared with the prior art, the present invention has the following advantages and effects:

Various components of the essential oil composition of the present invention are matched according to a specific ratio to achieve synergistic synergies. The blood circulation and cell growth promoting effects of the essential oil composition are used to activate hair roots to promote hair growth, and the sterilizing and oil controlling effects of the essential oil composition are used Removes scalp acne to prevent hair loss, and uses the moisturizing effect and anti-free radical effect of the essential oil composition to achieve anti-dandruff effect, thereby achieving scalp care goals.

detailed description

The present invention will be described in further detail below with reference to examples, but the embodiments of the present invention are not limited thereto.

In the following examples, the test methods without specific test conditions are generally based on conventional test conditions or test conditions recommended by the manufacturer.

Example 1 An essential oil composition for scalp care (Ⅰ)

An essential oil composition for scalp care, made of the following weight percent components: ginger essential oil 1.5%; citronella essential oil 0.5%; tea tree essential oil 0.7%; frankincense essential oil 1.2%; cedar essential oil 1.1%; grape seed oil remaining the amount.

Example 2 An essential oil composition for scalp care (Ⅱ)

An essential oil composition for scalp care, made of the following weight percent components: ginger essential oil 1.2%; citronella essential oil 0.6%; tea tree essential oil 0.8%; frankincense essential oil 1.2%; cedar essential oil 1.2%; jojoba oil for the rest the amount.

Example 3 An essential oil composition for scalp care (Ⅲ)

An essential oil composition for scalp care, made of the following weight percent components: ginger essential oil 1.1%; citronella essential oil 0.5%; tea tree essential oil 0.8%; frankincense essential oil 1.3%; cedar essential oil 1.3%; olive oil as the balance .

Example 4 An essential oil composition for scalp care (Ⅳ)

An essential oil composition for scalp care, made of the following weight percent components: ginger essential oil 2.0%; citronella essential oil 0.6%; tea tree essential oil 0.7%; frankincense essential oil 0.9%; cedar essential oil 0.8%; wheat germ oil remaining the amount.

Comparative Examples 1 to 6 Combination of single essential oil and base oil

The specific combination is shown in Table 1.

Table 1

ingredient	Comparative Example 1	Comparative Example 2	Comparative Example 3	Comparative Example 4	Comparative Example 5	Comparative Example 6
Ginger essential oil	5%	0	0	0	0	0
Lemongrass essential oil	0	5%	0	0	0	0
Cedar essential oil	0	0	5%	0	0	0
Tea tree oil	0	0	0	5%	0	0
Frankincense essential oil	0	0	0	0	5%	0
grape seed oil	95%	95%	95%	95%	95%	100%

Test Example 1 Bacteriostatic Zone Test

The test method is the Oxford Cup method (also called the tube and dish method), which is a common method for determining the potency of antibiotics at home and abroad, and is also a method prescribed by the multinational pharmacopoeia. Through the bacteriostatic zone test, the samples to be tested are judged to be Malassezia (Pityrosporum pityrosporum), Malassezia furfur (Pityrosporum orbiculare) in Latin, purchase unit: Guangdong Provincial Microbial Culture Collection Center, GIM2.181 ) Inhibition.

Test sample: The products prepared in Example 1 and Comparative Examples 1 to 6 were diluted with olive oil to 5 times as the test sample.

Aseptically, pour the high-temperature sterilized medium into a sterile petri dish with a diameter of 9 cm so that each dish has 15-20 mL of medium. After cooling, add 0.2 mL of Malassezia suspension , Coat the surface of the culture medium evenly with a coating rod, put the Oxford cup vertically on the surface of the corresponding culture medium with tweezers, and gently pressurize it so that there is no gap in contact with the culture medium. Each plate can hold 3 small tubes Add 0.1mL of each sample to be dropped into each small tube, and mark it well so that it does not overflow. Malassezia: After anaerobic cultivation in a 37 ° C incubator for 2 to 5 days, observe the results.

During the cultivation, on the one hand, the test bacteria began to grow, on the other hand, the sample to be tested spread around with the Oxford cup as the origin, forming a circular area where the colony could not grow, which was the "bacteriostatic circle". The larger the bacteriostatic zone, the better the acne removing effect.

According to the results of the drug susceptibility test, the sensitivity level is determined according to the diameter of the bacteriostatic circle. For the judgment standard, refer to Table 2 below.

Table 2 Judgment criteria for drug sensitivity experiments

Diameter of inhibition zone (mm)	Sensitivity
20 or more	Extremely sensitive
15 ～ 20	Gao Min
10 ～ 14	Zhong Min
10 or less	Hypoallergenic
0	Insensitive

The test results are shown in Table 3.

Table 3 Test results of the inhibition zone test

The results show that the examples 1 to 4 of the present invention have very significant inhibitory effects on malassezia, indicating that the essential oil composition has a very good antibacterial and anti-dandruff effect; and they are all better than the effect of the single essential oil, indicating that the essential oil is compounded with malasse Bacterial inhibition has a synergistic effect.

Test Example 2 Scalp moisturizing effect test

Experimental materials: the products of Example 1, Comparative Examples 1 to 6 were diluted with olive oil to 5 times as a sample, and the changes in the skin moisture content of the tester after using the sample were compared.

This test refers to the light industry standard "Guide to Evaluation of Moisturizing Efficacy of Cosmetics" to test the moisturizing efficacy of the samples. The principle of this method is: the capacitance method is used to determine the moisture content of the horny layer of the human skin is based on the difference between the dielectric constant of water and other substances. Can represent the moisture content of the scalp.

Forty permed subjects were selected. All subjects had no history of scalp allergy or scalp disease, and there were no abnormalities at the test site. Subject female; aged 21-45 years old. The entire test process is carried out in a constant temperature and humidity laboratory, with a room temperature of 20 ° C to 22 ° C and a humidity of 40% to 60%. Corneometer CM825 (Courage + Khazaka, Germany, purchased from Beijing Jinhongfan) was used to determine the moisture content of each experimental site. The larger the value, the higher the water content of the stratum corneum. Select the back side of the head as the test site (5cm × 5cm). Before the test, the subjects uniformly washed their hair with the same type of shampoo, dried them, and then maintained a certain posture balance for 30 minutes. The samples of Example 1 and Comparative Examples 1 to 6 were applied to the test site, respectively. The test time points are before the sample application (0h), 1h and 2h after the sample application. The sample application amount is 2.0 ± 0.1 mg / cm ² .

Then calculate the average hydration rate of volunteers at different time intervals, and calculate the hydration rate using formula (1):

The results are shown in Table 4.

Table 4

It can be drawn from Table 4 that the sample of Example 1 of the present invention still has a high moisture content in the skin 2 hours after use, indicating that the essential oil composition prepared by the present invention has a good moisturizing effect. Using the samples of Comparative Examples 1 to 6, the hydration rate in each time period is lower than that of the sample of Example 1 of the present invention. It can be seen that after the scientific combination of essential oils, the moisturizing effect is improved under the same dosage, and the essential oils play a good synergistic moisturizing and synergistic effect.

Test Example 3 Free radical scavenging test

1. Preparation of samples

Separately, the products prepared in Example 1 and Comparative Examples 1 to 6 were formulated into a sample ethanol solution with a concentration of 1%, and the following experiments were conducted.

2. Evaluation of superoxide anion free radical scavenging ability

Take 4.5mL of Tris-HCl buffer with 0.05mol / L pH = 8.2 and preheat in a 25 ° C water bath for 20min. Then add 1 mL of sample ethanol solution and 0.4 mL of 25 mmol / L pyrogallol solution. After mixing, react in a 25 ° C water bath for 5 min. Add 8 mol / L HCl 1.0 mL to stop the reaction. With Tris-HCl buffer as reference, the absorbance value was measured at 299nm. The blank control replaces the sample with 1 mL of sample ethanol solution.

Superoxide anion radical scavenging rate (%) = [1－ (A2 / A1)] × 100%

In the formula, A1 is the absorbance value of the blank control; A2 is the absorbance value of the sample.

3. Evaluation of scavenging ability of hydroxyl radicals

In a 25mL colorimetric tube, add 2mmol / L FeSO ₄ 3mL, 1mmol / L H ₂ O ₂ 3mL, shake well, then add 6mmol / L salicylic acid 3mL, shake well, take it out after heating in a 37 ° C water bath for 15min, and measure its Absorbance; add a certain concentration of the test solution, shake well, continue heating in the water bath for 15min, take out and measure its absorbance. The following formula is the clearance rate of the test solution to hydroxyl radical (· OH):

Hydroxyl radical scavenging rate (%) = [A3-A4-(A3-A5)] / A1 × 100%

In the formula, A3 is the absorbance value of the reaction system before no sample is added; A4 is the absorbance value of the system after the sample is cleared · OH; A5 is the absorbance value of the system after the blank control is cleared · OH.

4. Comparative test of samples against free radicals

Table 5 Free radical scavenging rate functional evaluation results

Experiments show that the essential oil composition of Example 1 of the present invention has a superoxide anion scavenging rate of over 85% and a hydroxyl radical scavenging rate of about 85%, indicating that the composition of the present invention has a significant free radical scavenging effect The unilateral essential oils in Comparative Examples 1 to 5 and the base oil in Comparative Example 6 have much better free radical scavenging rate, indicating that after scientific compounding, the composition has a synergistic effect.

Test Example 4 Skin irritation experiment

Experimental materials: the products of Example 1, Comparative Examples 1 to 6 were diluted 5 times with olive oil as samples.

Subjects: A total of 30 volunteers, including 20 women and 10 men, aged 20-40 years.

Test method: Take a 0.03mL sample with a syringe and place it in the medicine room of the spot test tape. Immediately apply the spot test tape with the sample longitudinally from the lower part to the normal skin of the left forearm. And make the test article evenly distributed. Mark the test site for easy observation. The skin was applied every 24 hours, and half an hour after the patch was uncovered, it was checked in accordance with the terms of the CTFA guidelines (1981). A total of 6 patch tests were carried out. On the 6th day after the application of the patch, additional examinations were carried out in order to observe late reactions. The data was compared using the results of the last inspection. Identify the following Table 6 as the standard:

Table 6 Identification criteria for skin irritation

grade	symbol	Identification standard
0	-	Negative reaction: no irritation, no erythema
1	±	Suspicious reaction: mild erythema
2	+	Weak positive reaction: erythema
3	++	Strong positive reactions: erythema, papules, blisters
4	+++	Very strong positive reaction: severe edema, large bubbles

Test results: as shown in Table 7.

Table 7 Skin irritation test results

Number of skinning	Example 1	Comparative Example 1	Comparative Example 2	Comparative Example 3	Comparative Example 4	Comparative Example 5	Comparative Example 6
1	0	1 time +	1 time ±	1 time ±	1 time ±	1 time ±	0
2	0	1 time ±	1 time +	0	0	0	0
3	0	0	0	1 time ±	0	0	0
4	0	0	0	0	1 time ±	0	0
5	0	0	0	0	0	0	0
6	0	0	0	0	0	0	0
total	0	1 time ±, 1 time +	1 time ±, 1 time +	2 times ±	2 times ±	1 time ±	0

The results in Table 7 show that the sample of the essential oil composition of Example 1 of the present invention is comparable to the sample of the base oil of Comparative Example 6, and no irritation was found in the volunteers, and the irritation is much lower than that of the samples of unilateral essential oils of Comparative Examples 1 to 5. It can be seen that after scientific combination of essential oils, in the case of consistent dosage, it is more gentle than single use.

Application Example 1 Scalp Massage Essential Oil

A scalp massage essential oil containing the essential oil composition for scalp care is described in Table 8:

Table 8

Component name	Quality score /%
Isododecane	margin
Dioctyl carbonate	32.4
Hydrogenated ethylhexyl oleate	0.5
Hydrogenated olive oil unsaponifiable	0.1
Vitamin E	1.0
Essential oil composition prepared in Example 1 (Ⅰ)	25.0

Preparation method: Mix isododecane, dioctyl carbonate, ethylhexyl hydrogenated olive oleate, unsaponifiable matter of hydrogenated olive oil, vitamin E, and essential oil composition (I), and mix well.

Apply Comparative Example 1 Ordinary Scalp Massage Oil

It is the same as Application Example 1 except that it does not contain the essential oil composition (I) of the present invention.

Application Example 2 Scalp Care Shampoo

A scalp care shampoo containing the essential oil composition for scalp care is described in Table 9:

Table 9

Component name	Quality score /%
water	margin
Cocoyl Hydrolyzed Oat Protein Potassium	28.30
Cocoyl glutamate disodium	11.60
Polyquaternium-10	0.23
Citric acid	0.45
Sodium citrate	0.05
Hydrolyzed corn starch	0.42
P-hydroxyacetophenone	0.40
Cocamide methyl MEA	0.55
Phenoxyethanol	0.45
Essential oil composition (Ⅰ) according to the present invention	0.20

Preparation:

(1) Weigh the raw materials according to the above formula;

(2) Put the above-mentioned deionized water, cocoyl hydrolyzed potassium oat protein, disodium cocoyl glutamate, polyquaternium-10, hydrolyzed corn starch, cocoamide methyl MEA into the emulsifying pot and heat to 80 ℃ , Stir and mix to make it completely dissolved;

(3) Reduce the temperature to 50 ° C and add the essential oil composition (I), p-hydroxyacetophenone, phenoxyethanol and citric acid-sodium citrate buffer to adjust the pH to 5.0-7.0, and stir evenly;

(4) Vacuum, stir evenly, lower the temperature to 37 ℃ to discharge.

Application Example 3 Scalp Care Conditioner

A scalp care conditioner containing the essential oil composition for scalp care is described in Table 10:

Table 10

Substance name	Quality score /%
Behenyl trimethyl ammonium chloride	4.2
Glyceryl monostearate	2.1
Polydimethylsiloxane	3.2
Cetostearyl alcohol	3.4
Disodium EDTA	0.05
The essential oil composition of the present invention (Ⅰ)	10.0
P-hydroxyacetophenone	0.3
Phenoxyethanol	0.4
Deionized water	margin

Preparation method: Add behenyl trimethyl ammonium chloride and disodium ethylenediaminetetraacetic acid to deionized water and heat to 80 ° C to form an aqueous phase. Mix glyceryl monostearate, cetearyl alcohol, and polydimethylsiloxane, and heat to 80 ° C to form the oil phase. Add the oil phase and the water phase to the emulsifying pot, stir evenly, after emulsifying and homogenizing for 5 minutes, when stirring and cooling to 50 ° C, add phenoxyethanol, p-hydroxyacetophenone and the essential oil composition (Ⅰ) of the invention Stir well and cool to 38 ° C, which is a scalp care conditioner.

Effect Example 1 Evaluation of scalp effect

Evaluation samples: the products prepared using Application Example 1 and Comparative Example 1.

Evaluation method: 30 subjects with seborrheic alopecia were selected, all male, aged 30-45 years old. The method of application was to spray the sample on the scalp after each shampoo and massage the scalp for 5 minutes. After 2 months of use, the evaluation was made from five aspects: improvement in hair loss, scalp moisture, scalp refreshing, scalp acne improvement, and hair frizz improvement.

Evaluation criteria: 1 point-poor, 2 points-poor, 3 points-fair, 4 points-good, 5 points-very good.

Evaluation results: see Table 11.

Table 11 Evaluation results

Evaluation project	Application Example 1	Application Comparative Example 1
Hair loss improvement	4.4	1.8
Scalp moisture	4.6	3.4
Scalp refreshing	4.7	2.8
Scalp improvement	4.3	3.2
Improve hair frizz	4.8	3.5

It can be seen from the results in Table 11 that the hair loss improvement degree, moisturizing degree to the scalp, refreshing degree, scalp acne improvement degree and hair frizziness improvement of the product of Application Example 1 are significantly better than those of Application Comparative Example 1. It shows that adding the essential oil composition of the present invention can moisturize the scalp, improve hair loss, improve hair frizz, improve scalp acne, and at the same time, it is not greasy and plays the role of scalp care.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, changes, modifications, substitutions, combinations, etc. that do not depart from the spirit and principles of the present invention The simplifications should all be equivalent replacement methods, which are all included in the protection scope of the present invention.

Claims (10)

1. An essential oil composition for scalp care, characterized by being made of the following components by weight: ginger essential oil 0.05-10.0%; citronella essential oil 0.1-5.0%; tea tree essential oil 0.05-6.0%; frankincense essential oil 0.1-6.0 %; Cedar essential oil 0.1 to 6.0%; base oil is the balance.
2. The essential oil composition for scalp care according to claim 1, which is made of the following components by weight: ginger essential oil 0.1-8.0%; citronella essential oil 0.1-3.0%; tea tree essential oil 0.1-5.0%; Frankincense essential oil 0.1-5.0%; Cedar essential oil 0.1-4.0%; Base oil is the balance.
3. The essential oil composition for scalp care according to claim 1, which is made of the following components by weight: ginger essential oil 1.1-2.0%; citronella essential oil 0.5-0.6%; tea tree essential oil 0.7-0.8%; Frankincense essential oil 0.9-1.3%; Cedar essential oil 0.8-1.3%; Base oil is the balance.
4. The essential oil composition for scalp care according to any one of claims 1 to 3, characterized in that:

   The base oil is a mixture of one or more of grape seed oil, wheat germ oil, olive oil, and jojoba oil.
5. Use of the essential oil composition for scalp care according to any one of claims 1 to 4 in the preparation of cosmetics.
6. The use according to claim 5, characterized in that the amount of the essential oil composition for scalp care added to cosmetics is 0.1-50% in terms of mass fraction.
7. A cosmetic for scalp care, comprising the essential oil composition for scalp care according to any one of claims 1 to 4.
8. The cosmetic for scalp care according to claim 7, characterized in that:

   The cosmetics contain an essential oil composition for scalp care in a mass fraction of 0.1 to 50%.
9. The cosmetic for scalp care according to claim 7 or 8, wherein the cosmetics are: liquids, lotions, creams, sprays, essences, essential oils, soaps, and care products.
10. The cosmetic for scalp care according to claim 7 or 8, wherein:

    The scalp massage essential oil includes components as follows:

    

    The scalp care shampoo includes the following components by mass fraction:

    

    The scalp care conditioner includes components as follows: