Skin care composition, moisturizing cream containing the composition and preparation method thereof

Abstract

The present application relates to the field of cosmetics, and more specifically, it relates to a skin care composition and a moisturizing cream containing the composition and a preparation method thereof. A skin care composition, according to mass percentage, includes the following components: 1-5% artichoke leaf extract, 1-5% cardamom extract, 1-5% white truffle extract, 1-5% watercress leaf extract, 1-5% ginkgo mistletoe fruit extract, 25-35% moisturizer A, and water is added to the balance to 100%. The composition of the present application is used in a moisturizing cream, which can provide long-lasting moisturizing for sensitive skin and relieve discomfort such as itching.

Description

Technical Field

[0001] The present invention relates to the field of cosmetics, and more specifically, to a skin care composition, a moisturizing cream containing the composition, and a preparation method thereof. Background Art

[0002] People with sensitive skin often have a damaged skin barrier and a thin stratum corneum that cannot retain enough moisture, so they are more likely to feel dehydrated and dry skin than the average person. When the skin is dehydrated, the stratum corneum cannot effectively protect the skin, making it easier for external stimuli to enter the skin, causing skin problems such as redness, fever, itching, etc. In addition, people with sensitive skin have a damaged skin barrier, and their skin's reactivity to external stimuli is enhanced, and the slightest stimulation will trigger an immune inflammatory response in the skin. Therefore, people with sensitive skin will feel more uncomfortable in a dry environment than people with normal skin.

[0003] Existing technologies such as CN102648892A disclose a moisturizing cream. It is composed of the following weight percentages: emulsifier 2-9%, emollient 7.5-26%, emulsifier 2-9%, preservative 0.3-0.9%, skin conditioner 7-25%, thickening stabilizer 0.05-1%, chelating agent 0.01-0.2%, pH adjuster 0.01-2%, solvent 60-85%. It mainly replenishes moisture to the skin, but does not take into account the fact that sensitive skin is prone to dehydration. After applying the moisturizing cream, the skin will soon become dry again, and produce discomfort symptoms such as redness and swelling. Therefore, there is still room for improvement. Summary of the invention

[0004] In order to provide long-lasting moisturizing for sensitive skin and relieve discomfort such as redness and swelling, the present application provides a skin care composition, a moisturizing cream containing the composition, and a preparation method thereof.

[0005] In a first aspect, the present application provides a skin care composition, which adopts the following technical solution:

[0006] A skin care composition comprises the following components by mass percentage: 1-5% of artichoke leaf extract, 1-5% of cardamom extract, 1-5% of white truffle extract, 1-5% of watercress leaf extract, 1-5% of ginkgo mistletoe fruit extract, 25-35% of moisturizer A, and the balance is supplemented with water to 100%.

[0007] The skin care composition uses a variety of specific plant extracts, which are mild and non-irritating to the skin. Application in downstream products can reduce irritation to the skin of people with sensitive skin and provide a better user experience. Artichoke leaf extract, cardamom extract, white truffle extract, watercress leaf extract, and ginkgo mistletoe fruit extract work together to temporarily increase the hydration of the skin and replenish moisture for the skin to balance the permeability of the epidermal cell membrane. In addition, the mixture of the five can strongly enhance the hydrophilicity of each other's polysaccharides, so that the polysaccharide polymers in the composition have more diverse polar groups, and form an extracellular colloidal matrix with the fibrin in the stratum corneum of the skin more quickly, long-lastingly, and stably, so that the skin has a stronger ability to lock water and is not easy to lose water. This layer of extracellular colloidal matrix is ​​equivalent to a layer of artificial barrier, which can alleviate the problem of thin stratum corneum of sensitive skin to a certain extent and relieve skin discomfort.

[0008] For sensitive skin, the various types of nerves in its stratum corneum are more abundant and sensitive, so external stimuli can easily activate TRPV-1, causing an imbalance in the membrane ion channels. A large amount of calcium ions flow inward, causing action potentials, and causing the skin to have a strong burning discomfort. With the cooperation of cardoon leaf extract, cardamom extract, white truffle extract, watercress leaf extract, and ginkgo mistletoe fruit extract, the calcium ion concentration inside and outside the cell membrane can be effectively regulated, the phenomenon of calcium ion influx caused by imbalance in membrane ion channels can be alleviated, and the release of allergic substances can be inhibited. As a result, sensitive skin is not prone to tingling, itching, etc. when stimulated by the outside world, and it also helps to improve the tolerance of sensitive skin.

[0009] Preferably, the mass ratio of the cardoon leaf extract, cardamom extract, white truffle extract, watercress leaf extract and ginkgo mistletoe fruit extract is 1:(0.8-1.2):(0.8-1.2):(0.8-1.2):(0.8-1.2).

[0010] By adopting the above technical scheme, the mass ratio between the cardoon leaf extract, cardamom extract, white truffle extract, watercress leaf extract and ginkgo mistletoe fruit extract is further limited, so that the five can have a more sufficient coordination effect, thereby having better moisturizing and anti-inflammatory effects.

[0011] Preferably, the moisturizing agent A includes at least one or more of butylene glycol, 1,2-hexanediol, and ethylhexylglycerin.

[0012] Preferably, the moisturizer A is butylene glycol, 1,2-hexanediol, and ethylhexylglycerin; in terms of mass percentage, butylene glycol accounts for 28-32% of the skin care composition, 1,2-hexanediol accounts for 0.5-1% of the skin care composition, and ethylhexylglycerin accounts for 0.01-0.1% of the skin care composition.

[0013] By adopting the above technical scheme, selecting specific moisturizers and limiting the ratio between the various raw materials, cardoon leaf extract, cardamom extract, white truffle extract, watercress leaf extract, and ginkgo mistletoe fruit extract are assisted to lock in moisture, and can also exert a certain preservative effect without using traditional preservatives, thereby extending the shelf life of the skin care composition and further reducing the degree of irritation to sensitive skin.

[0014] In a second aspect, the present application provides a moisturizing cream containing the composition, using the following technical solution:

[0015] A moisturizing cream containing the composition comprises the following components in terms of mass percentage:

[0016] Phase A: 5-11% emulsifier, 0.5-2% emollient, 5-12% moisturizer B, 14-25% oil, 0-1% vitamin, 0-0.5% preservative A;

[0017] Phase B: 3-8% moisturizer C, 0.1-2% skin conditioner, 0-1% thickener, 1-5% alcohol solvent;

[0018] Phase C: 0.01-2% neutralizer;

[0019] Phase D: 0-1% preservative B;

[0020] Phase E: 0.1-3% skin care composition;

[0021] Phase F: 0-1% fragrance;

[0022] Make up the balance to 100% with water.

[0023] Preferably, the moisturizing agent B can be a mixture of one or more of caprylic capric triglyceride, isohexadecane, moisturizing agent, glycerin, and sodium hyaluronate.

[0024] Preferably, the moisturizer C can be a mixture of one or more of caprylic capric triglyceride, isohexadecane, allantoin, glycerin, and sodium hyaluronate.

[0025] Preferably, the thickener may be a mixture of one or more of carbomer and xanthan gum.

[0026] Preferably, the oily substance includes at least one or more of vaseline, white oil, and cyclodimethylsilicone oil.

[0027] Preferably, the oily substance is vaseline, white oil, and cyclic dimethicone oil, and the mass ratio of vaseline, white oil, and cyclic dimethicone oil is 1:(2-4):(0.5-1), with the mass of vaseline as the basis.

[0028] By adopting the above technical scheme, the raw materials and mass ratio of the oily substance are further limited, and a special coordination relationship is generated between the oily substance and the cardoon leaf extract, cardamom extract, white truffle extract, watercress leaf extract, and ginkgo mistletoe fruit extract of the skin care composition, so that some active ingredients of the cardoon leaf extract, cardamom extract, white truffle extract, watercress leaf extract, and ginkgo mistletoe fruit extract can be encapsulated.

[0029] After applying the moisturizing cream to the face, the oily substance and the sebum of the skin are similar and miscible, and they quickly penetrate into the skin. The oily substance and some of the active ingredients encapsulated inside can fill the stratum corneum, replenish the lost lipids, strengthen the skin barrier, and alleviate the problem of thin stratum corneum in sensitive skin. After the oily substance fills the stratum corneum, the remaining active ingredients encapsulated inside are released, quickly penetrate into the inside and deep of the skin, and are absorbed and utilized by the skin, thereby achieving good anti-inflammatory, moisturizing, and water-locking effects. And because some of the active substances are encapsulated at the beginning, the release time of the skin care composition on the skin can be effectively extended, acting on the skin for a longer time, and can also alleviate the problem of rapid water loss in sensitive skin.

[0030] Preferably, the emulsifier includes at least one or more of stearic acid, emulsifier A165, Span 60, Tween 60, and C16 / 18 alcohol.

[0031] Preferably, the emulsifiers are stearic acid, emulsifier A165, Span 60, Tween 60, and C16 / 18 alcohol; in terms of mass percentage, stearic acid accounts for 0.5-1.5% of the moisturizing cream, emulsifier A165 accounts for 0.5-1.5% of the moisturizing cream, Span 60 accounts for 1-2% of the moisturizing cream, Tween 60 accounts for 2-4% of the moisturizing cream, and C16 / 18 alcohol accounts for 1-2% of the moisturizing cream.

[0032] By adopting the above technical scheme, the types of emulsifiers and the range of their usage in moisturizing creams are further limited, so that the oily substance and the skin care composition can be more stably mixed in water to form a uniformly dispersed stable emulsion, and the skin care composition and the oily substance can be more fully coordinated, thereby improving the anti-inflammatory, moisturizing and water-locking effects, and providing users with sensitive skin with a better user experience.

[0033] In a third aspect, the present application provides a method for preparing a moisturizing cream containing the composition, using the following technical solution:

[0034] A method for preparing a moisturizing cream containing the composition comprises the following steps:

[0035] Mixing various raw materials of phase A uniformly to obtain phase A;

[0036] Mixing various raw materials of phase B uniformly to obtain phase B;

[0037] Mix phase A and phase B until uniform, then add various raw materials of phase C, phase D, phase E and phase F and mix uniformly to obtain the finished product.

[0038] In summary, this application has the following beneficial effects:

[0039] 1. This application uses a variety of plant extracts to be used together in downstream products to give them lower irritation, which is very friendly to users with sensitive skin and provides a better user experience.

[0040] 2. The synergistic effect of cardoon leaf extract, cardamom extract, white truffle extract, watercress leaf extract and ginkgo mistletoe fruit extract can effectively improve the moisturizing and water-locking effect on the skin and relieve the discomfort caused by dryness.

[0041] 3. The combination of cardoon leaf extract, cardamom extract, white truffle extract, watercress leaf extract, and ginkgo mistletoe fruit extract can improve the concentration of calcium ions inside and outside the cell membrane, inhibit the release of allergens, thereby alleviating the sensitivity of sensitive skin, reducing the degree of discomfort, and improving the tolerance of sensitive skin.

[0042] 4. The combination of artichoke leaf extract, cardamom extract, white truffle extract, watercress leaf extract, ginkgo mistletoe fruit extract and special oils can increase the thickness and stability of the skin barrier, and improve the problems of dehydration and sensitivity of sensitive skin in the long term. DETAILED DESCRIPTION

[0043] The present application is further described in detail below with reference to the embodiments.

[0044] The raw materials used in the following examples and comparative examples are all commercially available products.

[0045] Example

[0046] Example 1

[0047] A skin care composition comprises the following components: cardoon leaf extract, cardamom extract, white truffle extract, watercress leaf extract, ginkgo mistletoe fruit extract, moisturizer A and water.

[0048] In this embodiment, cardoon leaf extract was purchased from Henan Tianfu Chemical Co., Ltd., cardamom extract was purchased from Shaanxi Kangjun Biotechnology Co., Ltd., white truffle extract was purchased from Wuhan Kemik Biomedicine Technology Co., Ltd., watercress leaf extract was purchased from Gansu Yishengxiang Biotechnology Co., Ltd., and ginkgo mistletoe fruit extract was purchased from Lanzhou Waterless Biotechnology Co., Ltd.

[0049] Moisturizer A is butylene glycol, 1,2-hexanediol, and ethylhexylglycerin.

[0050] The specific content of each raw material is shown in Table 1.

[0051] The present application also provides a moisturizing cream containing the composition, comprising the following components:

[0052] Phase A: emulsifier, emollient, humectant B, oil, vitamins, preservative A.

[0053] The emulsifiers are stearic acid, emulsifier A165, Span 60, Tween 60, and C16 / 18 alcohol.

[0054] The emollient is dimethicone.

[0055] Moisturizer B is caprylic capric triglyceride (GTCC) and isohexadecane (HD).

[0056] The oily substance is vaseline, white oil, and cyclic dimethyl silicone oil, and the white oil is specifically 26# white oil.

[0057] The vitamin is vitamin E.

[0058] Preservative A is propyl / methyl ester.

[0059] Phase B: moisturizer C, skin conditioning agent, thickener, alcohol solvent.

[0060] Moisturizer C is allantoin, glycerin, and sodium hyaluronate.

[0061] The skin conditioning agent is D-panthenol.

[0062] The thickeners are carbomer 940 and xanthan gum.

[0063] The alcohol solvent is propylene glycol.

[0064] Phase C: Neutralizer.

[0065] The neutralizing agent is triethanolamine.

[0066] Phase D: preservative B.

[0067] Preservative B is E59.

[0068] Phase E: Skin care composition.

[0069] Phase F: Fragrance.

[0070] water.

[0071] The specific content of each raw material is shown in Table 2.

[0072] The present application also provides a method for preparing a moisturizing cream containing the composition, comprising the following steps:

[0073] Step 1): Various raw materials of phase A are put into a reaction kettle and mixed evenly at 80° C. to obtain phase A.

[0074] Step 2): Various raw materials and water of phase B are added into another reaction kettle, and mixed evenly at 85° C. to obtain phase B.

[0075] Step 3): Pour phase B into a stirred tank, and then pour phase A into the stirred tank, and mix at 85°C. After the two phases are mixed, homogenize for 5 minutes, evacuate and keep warm for 30 minutes, and then cool down.

[0076] Step 4): Cool down to 45°C, then add phase C, phase D, phase E (mix all the raw materials in advance), and phase F, and stir evenly.

[0077] Step 5): Take samples, measure physical and chemical indicators, and discharge qualified materials to obtain moisturizing cream.

[0078] Example 2-3

[0079] A skin care composition, which is different from Example 1 in that the specific content of each raw material is different, see Table 1 for details.

[0080] A moisturizing cream containing the composition is different from Example 1 in that the specific content of each raw material is different, see Table 2 for details.

[0081] Example 4

[0082] A skin care composition, which is different from Example 1 in that the mass ratio of the artichoke leaf extract, cardamom extract, white truffle extract, watercress leaf extract, and ginkgo mistletoe fruit extract is 1:3:0.3:0.3:0.4. See Table 1 for details.

[0083] Example 5

[0084] A skin care composition, which is different from Example 1 in that the moisturizer A is butylene glycol.

[0085] Example 6

[0086] A moisturizing cream containing the composition is different from Example 1 in that the mass ratio of vaseline, white oil and cyclic dimethyl silicone oil is 0.75:1:3.

[0087] Example 7

[0088] A moisturizing cream containing the composition, which is different from that in Example 1 in that the oily substance is vaseline.

[0089] Table 1

[0090]

[0091] Table 2

[0092]

[0093]

[0094] Comparative Example 1

[0095] A skin care composition, which is different from Example 1 in that the artichoke leaf extract is replaced by water.

[0096] Comparative Example 2

[0097] A skin care composition, which is different from Example 1 in that the cardamom extract is replaced by water.

[0098] Comparative Example 3

[0099] A skin care composition, which is different from Example 1 in that the white truffle extract is replaced by water.

[0100] Comparative Example 4

[0101] A skin care composition, which is different from Example 1 in that the watercress leaf extract is replaced by water.

[0102] Comparative Example 5

[0103] A skin care composition, which is different from Example 1 in that the Viscum ginkgo biloba fruit extract is replaced by water.

[0104] Performance testing

[0105] 1. Test samples: moisturizing creams of Examples 1-7 and Comparative Examples 1-5.

[0106] 2. Test subjects: 60 volunteers aged 28-45 years with sensitive skin and a total facial redness and swelling area of ​​about 50% were selected and randomly divided into groups, with 5 people in each group, and one group corresponding to one test sample.

[0107] The selection criteria for sensitive skin are volunteers whose skin turns red after being exposed to the sun for 15 minutes and whose skin does not go away for 1 hour after entering indoors.

[0108] Try to select volunteers with similar skin conditions.

[0109] 3. Detection method:

[0110] An area was selected from the cheek of the volunteer as the test area to measure the transepidermal water loss, skin erythema index and water content. This is the initial data and is recorded in Table 3.

[0111] Then clean your face with clean water and apply 2g of the test sample evenly on the test area, once in the morning and once in the evening. Do not use other skin care products during this period and avoid prolonged sun exposure or outdoor sports.

[0112] The water content of the test area was tested 1 hour after the first application of the test sample, and then the water content and transepidermal water loss of the test area were tested again 8 hours later and recorded in Table 3.

[0113] After 28 days of continuous use, the transepidermal water loss and skin erythema index of the test area were measured and recorded in Table 3.

[0114] The transepidermal water loss was measured using a transepidermal water loss tester; the skin erythema index was measured using the VISIA-CR skin testing system; and the water content was measured using a skin moisture tester.

[0115] Table 3

[0116]

[0117]

[0118] According to the comparison of the test data of Examples 1-7 and Comparative Examples 1-5 in Table 3, it can be seen that the skin care compositions and moisturizing creams of Examples 1-7 can better enhance the skin barrier of volunteers with sensitive skin, reduce the redness (inflammation) of the volunteers' skin, and provide long-term moisture replenishment for the volunteers' skin. While the skin care compositions of Comparative Examples 1-5 can effectively replenish moisture for the volunteers in a short period of time after use, the skin barrier and sensitivity are not effectively improved, and the moisturizing effect cannot be maintained for a long time; after the volunteers used the skin care compositions and moisturizing creams of Comparative Examples 1-5, the improvement effect of the skin was obviously not as good as that of Examples 1-7.

[0119] According to the comparison of the test data of Example 1 and Comparative Examples 4-7 in Table 3, changing the ratio of each raw material in the skin care composition, the ratio of the moisturizer or the oily substance used in the skin care composition will have a significant impact on the performance of the moisturizing cream. Further limiting the above factors can obtain a moisturizing cream with better anti-inflammatory, moisturizing and water-locking effects.

[0120] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A skin care composition, characterized in that According to the mass percentage, it comprises the following components: 1-5% of cardoon leaf extract, 1-5% of cardamom extract, 1-5% of white truffle extract, 1-5% of watercress leaf extract, 1-5% of ginkgo mistletoe fruit extract, 25-35% of moisturizer A, and the balance is supplemented with water to 100%; The mass ratio of cardoon leaf extract, cardamom extract, white truffle extract, watercress leaf extract and ginkgo mistletoe fruit extract is 1: (0.8-1.2): (0.8-1.2): (0.8-1.2): (0.8-1.2); The moisturizer A is butylene glycol, 1,2-hexanediol, and ethylhexylglycerin; in terms of mass percentage, butylene glycol accounts for 28-32% of the skin care composition, 1,2-hexanediol accounts for 0.5-1% of the skin care composition, and ethylhexylglycerin accounts for 0.01-0.1% of the skin care composition.

2. A moisturizing cream containing the composition, characterized in that: According to mass percentage, it includes the following components: Phase A: 5-11% emulsifier, 0.5-2% emollient, 5-12% moisturizer B, 14-25% oil, 0-1% vitamin, 0-0.5% preservative A; Phase B: 3-8% moisturizer C, 0.1-2% skin conditioner, 0-1% thickener, 1-5% alcohol solvent; Phase C: 0.01-2% neutralizer; Phase D: 0-1% preservative B; Phase E: 0.1-3% skin care composition, using the skin care composition of claim 1; Phase F: 0-1% fragrance; Add water to the remaining amount to 100%; The oily substance is vaseline, white oil, and cyclic dimethicone oil, and the mass ratio of vaseline, white oil, and cyclic dimethicone oil is 1:(2-4):(0.5-1), with the mass of vaseline as the basis; The emulsifiers are stearic acid, emulsifier A165, Span 60, Tween 60, and C16 / 18 alcohol; in terms of mass percentage, stearic acid accounts for 0.5-1.5% of the moisturizing cream, emulsifier A165 accounts for 0.5-1.5% of the moisturizing cream, Span 60 accounts for 1-2% of the moisturizing cream, Tween 60 accounts for 2-4% of the moisturizing cream, and C16 / 18 alcohol accounts for 1-2% of the moisturizing cream.

3. A method for preparing a moisturizing cream containing the composition according to claim 2, characterized in that: The following steps are involved: Mixing various raw materials of phase A uniformly to obtain phase A; Mix the various raw materials of phase B and water to obtain phase B; Mix phase A and phase B until uniform, then add various raw materials of phase C, phase D, phase E and phase F and mix uniformly to obtain the finished product.

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