CN111568816A

CN111568816A - Face cream and preparation method thereof

Info

Publication number: CN111568816A
Application number: CN202010497274.1A
Authority: CN
Inventors: 卢静蕾; 徐纪
Original assignee: Shanghai Shaoneng Information Technology Co ltd
Current assignee: Shanghai Shaoneng Information Technology Co ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2020-08-25

Abstract

The invention relates to the technical field of skin care products, and particularly relates to a face cream and a preparation method thereof. The preparation raw materials at least comprise the following components in parts by weight: the component A comprises: 55-70 parts of water and 10-25 parts of humectant; and B component: 3-10 parts of plant extract, 2-6 parts of emulsifier, 1-3 parts of co-emulsifier, 0.1-0.9 part of thickener and 2.3-4.2 parts of emollient; and C, component C: 0.2-1 part of antioxidant and 3-10 parts of emollient; and (D) component: 0.05-0.2 part of skin conditioner and 0.01-0.14 part of fragrance regulator; the functional components and the partial auxiliary components have the mutual synergistic effect, so that the synergistic effect of multi-azimuth water replenishing and moisturizing, deep nourishing and skin repairing is realized.

Description

Face cream and preparation method thereof

Technical Field

The invention relates to the technical field of skin care products, and particularly relates to a face cream and a preparation method thereof.

Background

The living standard of people is improving, people pay attention to skin care, the requirement on products is higher and higher, meanwhile, the skin is damaged by a plurality of factors such as bad living habits, bad environment, ultraviolet rays, various mental stress, incorrect skin care and the like, and more skin conditions such as skin dryness, edema, acne, skin elasticity loss, roughness, aging and the like are disturbed. Although a plurality of skin care products are available on the market, the skin care products cannot protect the skin due to the problems of adding chemical preparations, strong acid and strong alkali, chemical preservatives and the like, and can cause dependence on the skin or strong stimulation to the skin.

Therefore, there is a need to develop a product which can comprehensively repair damaged skin and promote skin regeneration, and the product meets the market demand.

Disclosure of Invention

In order to solve the technical problems, the invention provides a cream in a first aspect, which comprises the following raw materials in parts by weight: the component A comprises: 55-70 parts of water and 10-25 parts of humectant; and B component: 3-10 parts of plant extract, 2-6 parts of emulsifier, 1-3 parts of co-emulsifier, 0.1-0.9 part of thickener and 2.3-4.2 parts of emollient; and C, component C: 0.2-1 part of antioxidant and 3-10 parts of emollient; and (D) component: 0.05-0.2 part of skin conditioner and 0.01-0.14 part of fragrance regulator.

In a preferred embodiment of the present invention, the humectant is one or more selected from glycerin, propylene glycol, 1, 2-pentanediol, 1, 3-butanediol, betaine, oat glucan, allantoin, ceramide, caprylyl glycol, and sodium hyaluronate.

As a preferred technical solution of the present invention, the plant extract is selected from one or more of jojoba oil, nut oil, shea butter, camellia oil, shea butter, grape seed oil, avocado oil, cactus seed oil, evening primrose oil, olive oil, and hazelnut oil.

As a preferred technical scheme of the invention, the plant extract is a combination of shea butter, grape seed oil, avocado oil, cactus seed oil and evening primrose oil, wherein the mass ratio of shea butter, grape seed oil, avocado oil, cactus seed oil and evening primrose oil is (1-4): (0.5-1.5): (0.8-1.9): (0.5-1.5): (0.6-1.8).

In a preferred embodiment of the present invention, the emulsifier is polyglyceryl stearate and/or cetostearyl alcohol.

In a preferred embodiment of the present invention, the degree of polymerization of the polyglyceryl stearate is 6 to 10.

As a preferable technical scheme of the invention, the coemulsifier is a fatty alcohol compound.

In a preferred embodiment of the present invention, the carbon chain length of the fatty alcohol compound is C16-22.

In a preferred embodiment of the present invention, the thickener is one or more selected from pectin, gelatin, soluble starch, carboxymethyl cellulose, methyl cellulose, collagen, polysaccharides, and hydroxypropyl guar gum.

A second aspect of the present invention provides a method for preparing a cream, the method comprising at least the steps of:

(1) mixing the humectant in the component A with water, and stirring to 70-80 ℃ to obtain a mixed solution 1;

(2) mixing the plant extract, emulsifier, co-emulsifier, thickener and emollient in the component B, and stirring to 70-80 deg.C to obtain mixed solution 2;

(3) mixing the antioxidant and the emollient in the component C, adding into the mixed solution 2, and stirring at 70-80 deg.C to obtain mixed solution 3;

(4) mixing the mixed solution 3 with the mixed solution 1, homogenizing for 5min under vacuum, keeping vacuum and stirring, and cooling to obtain a mixed solution 4;

(5) when the mixed solution 4 is cooled to 40-50 deg.C, adding the skin conditioner and the flavor regulator in the component D into the mixed solution 4, and homogenizing under vacuum for 15-30 min.

Has the advantages that: the invention provides a face cream and a preparation method thereof, the moisture in the skin can be firmly locked by adopting the humectant, the moisturizing effect is achieved, the obvious moisturizing effect is achieved on the skin tissue of a human body, and the dissolubility and the permeability of other components in the face cream can be improved; plant extracts are added, and the types and the proportion of the plant extracts are preferably controlled, so that the plant extracts can play a better role in synergism, and the moisturizing and repairing effects and the skin feeling of the face cream are improved; the cream is characterized in that the emulsifier and the co-emulsifier are compounded, particularly, polyglycerol stearate with a certain polymerization degree and fatty alcohol compounds with a certain carbon chain length are selected to optimize the emulsifying effect of the product, and the compound is matched with other auxiliary agents such as thickening agents, emollients, antioxidants, emollients, skin conditioners, fragrance regulators and the like, so that the stability of the cream is improved to a certain extent, the application range and the application condition of the cream are enlarged, the multidirectional moisturizing and nourishing repair are realized, and the mutual synergistic effect is realized among various functional components, the functional components and part of auxiliary components, so that the multidirectional moisturizing and moisturizing, deep nourishing and skin repair synergistic effect is realized; in addition, the raw materials selected by the invention are all natural sources, are high in safety to human bodies, are green and environment-friendly, meet the future development trend of cosmetics, and are worthy of popularization.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a graph comparing the effects of the cream prepared in example 1 before and after 7 days.

Detailed Description

The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.

The term "prepared from …" as used herein is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.

The conjunction "consisting of …" excludes any unspecified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.

When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.

The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. "optional" or "any" means that the subsequently described event or events may or may not occur, and that the description includes instances where the event occurs and instances where it does not.

Approximating language, as used herein throughout the specification and claims, is intended to modify a quantity, such that the invention is not limited to the specific quantity, but includes portions that are literally received for modification without substantial change in the basic function to which the invention is related. Accordingly, the use of "about" to modify a numerical value means that the invention is not limited to the precise value. In some instances, the approximating language may correspond to the precision of an instrument for measuring the value. In the present description and claims, range limitations may be combined and/or interchanged, including all sub-ranges contained therein if not otherwise stated.

In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the stated number clearly indicates that the singular form is intended.

In a more preferred embodiment, the cream of the present invention is prepared from at least the following raw materials in parts by weight: the component A comprises: 60-65 parts of water and 15-20 parts of humectant; and B component: 4-8 parts of plant extract, 3-4 parts of emulsifier, 1.5-2.3 parts of co-emulsifier, 0.2-0.6 part of thickener and 2.6-3.4 parts of emollient; and C, component C: 0.4-0.8 part of antioxidant and 4-7 parts of emollient; and (D) component: 0.08-0.13 part of skin conditioner and 0.05-0.1 part of fragrance regulator.

In a most preferred embodiment, the face cream provided by the invention is prepared from at least component A: 63.64 parts of water and 18.1 parts of humectant; and B component: 6 parts of plant extract, 3.6 parts of emulsifier, 2 parts of co-emulsifier, 0.4 part of thickener and 3 parts of emollient; and C, component C: 0.6 part of antioxidant and 6 parts of emollient; and (D) component: 0.1 part of skin conditioner and 0.06 part of fragrance regulator.

Moisture-retaining agent

The moisturizer is a hydrophilic skin moisturizing substance, has the capacity of combining water in a lower humidity range and replenishing water to the skin, and can maintain the skin in a balanced state with the water content higher than the normal water content by controlling the water exchange between a product and the ambient air, thereby playing the role of relieving the dryness of the skin.

In a preferred embodiment, the moisturizer of the present invention is selected from one or more of glycerin, propylene glycol, 1, 2-pentanediol, 1, 3-butanediol, betaine, oat glucan, allantoin, ceramide, caprylyl glycol, sodium hyaluronate.

In a more preferred embodiment, the humectant of the present invention is a combination of glycerin, 1, 2-pentanediol, betaine, and sodium hyaluronate, wherein the mass ratio of glycerin, 1, 2-pentanediol, betaine, and sodium hyaluronate is (1-5): (1-5): 1: (0.01-1).

In a most preferred embodiment, the moisturizer of the present invention is a combination of glycerin, 1, 2-pentanediol, betaine, and sodium hyaluronate, wherein the mass ratio of glycerin, 1, 2-pentanediol, betaine, and sodium hyaluronate is 3: 3: 1: 0.05.

according to the invention, water and the humectant are used as the water phase of the cream, and the combination of glycerol, 1, 2-pentanediol, betaine and sodium hyaluronate is preferably used as the humectant, so that the moisture in the skin can be firmly locked, the moisturizing effect is achieved, the obvious moisturizing effect is achieved on the skin tissue of a human body, and the solubility and the permeability of other components in the cream can be improved; in addition, glycerin can promote the self-repairing of damaged cells, adjust the hydration function of skin and increase the water content of skin, but the use amount of glycerin cannot be controlled or used in a dry environment, so that the skin is dry, and the skin is possibly greasy, and pores are blocked; the inventors have found that the addition of sodium hyaluronate according to the present invention is effective in alleviating the above problems, and may be caused by that the water absorption of glycerin is bidirectional, and can absorb water from the air and skin, and glycerin can absorb water from the skin by reaction to achieve equilibrium effect when used in dry environment, and sodium hyaluronate is a transparent colloid, belongs to a high molecular polymer, has film forming and lubricating functions, can form a breathable film on the skin surface, can enhance the water retention capacity of the skin for a long time, rapidly hydrates epidermal cells, locks water in deep layer, replenishes water, increases the skin water content, on the one hand, can effectively weaken the reaction of glycerin, and on the other hand, sodium hyaluronate can also promote the proliferation and differentiation of epidermal cells and remove oxygen radicals, promoting the regeneration of the skin of the injured part; especially, the skin moisturizing and repairing emulsion is compounded with 1, 2-pentanediol and betaine, has a synergistic effect, can improve the skin water locking and antibacterial functions, can reduce the degree of membrane lipid peroxidation, provides methyl for the metabolism of the skin, and further improves the skin moisturizing and repairing effects.

Plant extracts

The plant extract is a product formed by taking plants as raw materials, directionally obtaining and concentrating one or more active ingredients in the plants through a physical and chemical extraction and separation process according to the requirements of the application of an extracted final product without changing the structures of the active ingredients.

In a preferred embodiment, the plant extract according to the present invention is selected from one or more of jojoba oil, nut oil, shea butter, camellia oil, shea butter, grape seed oil, avocado oil, cactus seed oil, evening primrose oil, olive oil, hazelnut oil.

In a more preferred embodiment, the plant extract of the present invention is a combination of shea butter, grape seed oil, avocado oil, cactus seed oil and evening primrose oil, wherein the mass ratio of shea butter, grape seed oil, avocado oil, cactus seed oil and evening primrose oil is (1-4): (0.5-1.5): (0.8-1.9): (0.5-1.5): (0.6-1.8).

In a most preferred embodiment, the plant extract of the present invention is a combination of shea butter, grape seed oil, avocado oil, cactus seed oil and evening primrose oil, wherein the mass ratio of shea butter, grape seed oil, avocado oil, cactus seed oil and evening primrose oil is 2: 1: 1: 1: 1.

the raw material name of the SHEA BUTTER is SHEA BUTTER, and the INCI name is SHEA BUTTER (Butyrschermum PARKII).

The shea butter is extracted from shea butter, which is a plant with magical maintenance efficacy. They are mostly grown in tropical rainforest areas between african celecoxib and nigeria, are hardwoods with adult trees up to 15 to 20 meters, often up to hundreds of years old. The Missible oil wood flowers between 12 months a year and 3 months the next year. The fruit "Shea butter" (or shea butter) has a delicious pulp like avocado, and the fat in the pit is shea butter, which accounts for about half of the oil in the pit. Each mature fruit tree can only produce 15 to 20 kilograms of shea nuts per year, and due to climate and planting, shea nuts can only survive in the African continent. Thus, shea butter is extremely precious. The shea butter is a light yellow soft solid with a slight characteristic smell; the skin moisturizing cream is rich in a large amount of oleic acid and vitamins, has excellent moisturizing performance and helps to rebuild the skin structure; contains a large amount of unsaponifiable matter capable of absorbing ultraviolet rays, and can protect skin from ultraviolet rays.

The INCI name of the avocado oil is avocado (PERSEA GRATISSIMA) oil.

The INCI name of the grape seed oil is grape (VITIS VINIFERA) seed oil.

The INCI name of the cactus seed oil is cactus (Opuntia DILLENII) seed oil.

The evening primrose oil has the INCI name of evening primrose (OENOTHERA BIENNIS) oil.

The inventor finds that by adopting the plant extract as the oil phase, on one hand, the raw materials are all natural sources, so that the cream is high in safety to human bodies and environment-friendly, on the other hand, the plant extract contains various nutrient components, so that the repairing and moisturizing effects of the cream can be effectively improved, and particularly, the combination of shea butter, grape seed oil, avocado oil, cactus seed oil and evening primrose oil is preferably selected as the plant extract, so that the using effect and the skin feel are better; the reason for the possible existence is that each index of the shea butter is very consistent with the secretion of a human body, the shea butter contains rich fatty acid, and the avocado oil and the shea butter are compounded for use, so that the moisturizing effect of the cream can be effectively enhanced, the cream has an obvious nourishing effect on the skin, is mild and non-irritant, can effectively help cells to regenerate and promote the microcirculation, and also has the effect of promoting the healing of tiny wounds; the evening primrose oil contains abundant linoleic acid, vitamin E and F, is an excellent humectant, moisturizer and lubricant, can promote blood circulation, can effectively prevent skin senilism, helps to repair damaged cells, keeps the health and luster of the skin, can also improve the condition of extreme dryness and even desquamation of the skin, and enables the aged cells to recover vitality; the cactus seed oil contains a large amount of vitamin E and sterol which are natural antioxidant components, can prevent the generation of free radicals in a human body, can accelerate the decomposition and metabolism of the free radicals of the human body and prevent the free radicals from damaging human body cells, also contains a large amount of unsaturated fatty acid, wherein the contents of linoleic acid and linolenic acid are particularly high.

Through experimental research of the inventor for many years, when the combination of the shea butter, the grape seed oil, the avocado oil, the cactus seed oil and the evening primrose oil is used, the mass ratio of the shea butter, the grape seed oil, the avocado oil, the cactus seed oil and the evening primrose oil is controlled to be (1-4): (0.5-1.5): (0.8-1.9): (0.5-1.5): (0.6-1.8), the use effect is optimal, the healing of the skin wound can be accelerated, the infection of the wound can be prevented, the scar can be lightened, the damaged skin cells can be repaired, and the skin elasticity can be increased; however, oleic acid and linoleic acid which are rich in vegetable oil are unsaturated fatty acids, are easily oxidized when exposed to air, are changed into yellow or brown in color, are easily crystallized at low temperature, and severely limit the application range of the cream.

Emulsifier

The emulsifier of the present invention is a compound capable of forming a stable emulsion from a mixture of two or more immiscible components.

In a preferred embodiment, the emulsifier according to the invention is polyglycerol stearate and/or cetostearyl alcohol.

In a preferred embodiment, the degree of polymerization of the polyglycerol stearate according to the invention is in the range of 6 to 10.

In a more preferred embodiment, the emulsifier of the present invention is polyglyceryl-10 stearate and cetearyl alcohol, wherein the mass ratio of polyglyceryl-10 stearate to cetearyl alcohol is (1-4): 1.

in a more preferred embodiment, the emulsifier of the present invention is polyglyceryl-10 stearate and cetearyl alcohol, wherein the mass ratio of polyglyceryl-10 stearate to cetearyl alcohol is 2: 1.

in a preferred embodiment, the emulsifier of the invention further comprises polyglycerol-6 tristearate.

In a more preferred embodiment, the mass ratio of polyglyceryl-6 tristearate to polyglyceryl-10 stearate according to the present invention is 1: (0.4-1).

In a most preferred embodiment, the mass ratio of polyglyceryl-6 tristearate to polyglyceryl-10 stearate of the present invention is 1: 0.6.

the inventor finds that the dispersibility of the plant extract in the water phase can be effectively improved by adopting the emulsifier, particularly the compounding of the polyglycerol-10 stearate and the cetearyl alcohol can ensure that an oil phase stably exists in the water phase and can also improve the skin feel of the cream in use, and the possible reason is that the invention adopts the compounding of the emulsifier containing polyhydroxy and long carbon chains, so that the interfacial tension of each component in a mixed system can be reduced, and the dispersibility of the vegetable oil rich in oleic acid and linoleic acid in a water system can be further improved; in addition, the polar emulsifier is selected, so that the spreadability, lubricity and solubility of system components can be improved, and a polyglycerol structure in a polyglycerol fatty acid ester emulsifier molecular structure is combined, so that a water-retaining and breathable soft film can be formed on the surface of skin, and a large number of hydroxyl groups can improve the water-binding capacity of the soft film and improve the skin feel of the cream.

However, the inventors have unexpectedly found that the emulsification effect can be further improved when polyglycerol-6 tristearate is added, which may be caused by the fact that polyglycerol has a higher polymerization degree, a higher number of hydroxyl groups and a higher hydrophilicity than polyglycerol-6 tristearate, which causes the emulsifier to be difficult to penetrate into each other between the aqueous phase and the oil phase to form micelles, thereby reducing the emulsification effect, whereas the present invention adds polyglycerol having a low polymerization degree, particularly an emulsifier having a plurality of long carbon chains, to reduce the HLB value to a certain extent, prevent the occurrence of oil droplet aggregates, and improve the emulsification effect.

Auxiliary emulsifier

The coemulsifier of the present invention can adjust the HLB value of the emulsifier and form smaller emulsion droplets.

In a preferred embodiment, the coemulsifier of the present invention is a fatty alcohol compound.

In a more preferred embodiment, the fatty alcohol compounds of the present invention have a carbon chain length of C16-22.

In a most preferred embodiment, the fatty alcohol compound of the present invention is glyceryl behenate.

The inventor finds in experiments that the assistant emulsifier is added into the system, so that the dispersibility of the vegetable oil in the water phase can be improved, and the long-term storage stability of the cream can be improved, and the possible reasons are that the long-carbon-chain fatty alcohol compound and the polyglycerol-6 tristearate have a synergistic effect, so that the long-carbon-chain fatty alcohol compound can form interfacial barriers on the surfaces of liquid drops, the oil-water interfacial tension in the liquid drops is reduced sharply, the fluidity of an interfacial film is enhanced, the bending energy required by emulsion formation is reduced, the migration of the oil drops from small liquid drops to large liquid drops is delayed, and the emulsion can be formed spontaneously; if the addition amount of the co-emulsifier is too much, the cream can be layered, if the addition amount of the co-emulsifier is too little, the particle size of oil drops is larger, the oil drops are not beneficial to skin absorption in use, the use effect is influenced, and when the mass ratio of the emulsifier to the co-emulsifier is (2-6): (1-3), the emulsification and use effects are best.

Thickening agent

The thickening agent can improve the viscosity of a system and keep the system in a uniform and stable suspension state or an emulsion state.

In a preferred embodiment, the thickener according to the invention is selected from one or more of pectin, gelatin, soluble starch, carboxymethyl cellulose, methyl cellulose, collagen, polysaccharides, hydroxypropyl guar gum.

In a most preferred embodiment, the thickener of the present invention is hydroxypropyl guar.

The inventor guesses that the addition of the co-emulsifier and the thickener can prolong the shelf life and the high-temperature stability of the face cream and further improve the moisturizing and repairing effects, probably because the fatty alcohol compound with the carbon chain length of C16-22, the polyglycerol stearate with the polymerization degree of 6-10 and the hydroxypropyl guar gum are adopted by the invention to easily form a complex network structure with unsaturated fatty acid in vegetable oil, the complex network structure can wrap unsaturated bonds in oleic acid, the contact between air and the oleic acid is reduced to a certain extent, the antioxidant performance of the oleic acid is improved, and the service time and the high-temperature resistance of the face cream are prolonged; the unsaturated oleic acid is wrapped by the film forming structure, so that the molecular mobility of unsaturated fatty acid in a system can be reduced, the crystallization capability is reduced, and the stability of the cream at low temperature is further improved.

Softening and moistening agent

The emollient simulates the components of lipid in the horny layer, can tightly bond horny cells, skin fragments and water molecules together, and ensures the stability of the water content of the skin.

In a preferred embodiment, the emollient of the present invention is selected from one or more of lanolin, meadowfoam seed oil, hydrogenated coconut oil, squalane.

In a preferred embodiment, the emollient of the present invention is squalane.

The squalane is rare animal oil with high chemical stability and excellent use feeling, has better affinity to the skin, and has lower polarity and moderate spreadability. The skin-friendly cream has good skin-friendly property, can be highly compatible with sebum secreted by skin, forms a breathable protective film on the surface layer of the skin, and plays the effects of moisturizing and moistening the skin. Can effectively relieve dry skin and maintain the skin elastic and full. Can strengthen the repair of the epidermis, effectively form a natural protective film and help the balance between the skin and the sebum. Inhibiting peroxidation of skin lipid, and supplying oxygen to skin; can effectively permeate into skin, promote proliferation of basal cells of the skin and improve the repair effect of the cream.

Antioxidant agent

The antioxidant according to the present invention means a substance that prevents adverse effects of oxygen. It is a class of substances that helps to trap and neutralize free radicals, thereby removing the damage that free radicals cause to the human body.

In a preferred embodiment, the antioxidant of the present invention is a natural antioxidant.

In a most preferred embodiment, the antioxidant of the present invention is a natural tocopherol.

The antioxidant disclosed by the invention is mainly used for releasing hydrogen atoms to be combined with peroxide generated by the automatic oxidation reaction of the grease and interrupting the chain reaction, so that the oxidation process is prevented from being continued, the effect of protecting the vegetable oil is realized, and the antioxidant has a synergistic effect with the thickener, the emulsifier and the co-emulsifier.

Skin-moistening agent

The emollients of the present invention are cosmetic ingredients that help maintain the soft, pliable, smooth appearance of the skin. The function of emollients is to remain on the skin surface and to provide lubrication within the stratum corneum. Generally, the skin fills the spaces in the skin surface, replacing the lipid lost in the stratum corneum, reducing the scaly skin, and improving the appearance of the skin.

In a preferred embodiment, the emollient of the present invention is selected from one or more of hydrogenated lecithin, C9-12 alkane, coco caprylate/caprate, palmityl alcohol, stearic acid.

In a more preferred implementation, the emollient of the present invention is a combination of hydrogenated lecithin, coco-caprylate/caprate and VEGELIGHT1214LC in a mass ratio of 0.5: 3: (2-5).

In a most preferred embodiment, the emollient of the present invention is a combination of hydrogenated lecithin, coco-caprylate/caprate and VEGELIGHT1214LC in a mass ratio of 0.5: 3: 3.

the VEGELIGHT1214LC of the present invention is commercially available, VEGELIGHT1214LC product including C9-12 alkane and coco-caprylate/caprate.

The emollient adopted by the invention has good spreadability, so that the skin has a smooth but not greasy feeling and is easy to be absorbed by the skin. The addition of short-chain alkane structure can effectively adjust the long carbon chain structure of plant extract species, so that the cream has the characteristics of good ductility, smooth skin feel, no greasiness, no heaviness and mild property.

Skin conditioning agent

In a preferred embodiment, the skin conditioning agent of the present invention is glucosylrutin.

The glucosyl rutin has good water solubility, has the capabilities of resisting oxidation and protecting collagen and grease, resisting aging and skin cells, has extremely strong free radical scavenging capability and ultraviolet ray absorption characteristic, and can protect epidermis and dermis from being damaged by ultraviolet rays. In addition, the glucosyl rutin is yellow powder, and can be used for toning the face cream.

Fragrance modulators

The fragrance regulator of the present invention is a substance capable of regulating the taste of a skin care product.

In a preferred embodiment, the flavor modulator of the present invention is selected from one or more of jasmine oil, rose oil, gardenia oil, and orchid oil.

In a most preferred embodiment, the flavor modulator of the present invention is rose oil.

The fragrance regulator can improve the fragrance of products and cover up unpleasant odor; has effects in scavenging free radicals, enhancing cell activity, and activating skin; in addition, the fragrance also has the effects of resisting melancholy and nervous tension, improving spirit, exciting people, improving sleep, relieving pressure and the like.

It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention.

In addition, the raw materials used are commercially available from national chemical reagents, unless otherwise specified.

Examples

In order to better understand the above technical solutions, the following detailed descriptions will be provided with reference to specific embodiments. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention. In addition, the raw materials are commercially available and the extraction methods of the extract are all conventional extraction methods, if not otherwise specified.

Example 1

The provided face cream comprises the following raw materials in parts by weight: 63.64 parts of water and 18.1 parts of humectant; and B component: 6 parts of plant extract, 3.6 parts of emulsifier, 2 parts of co-emulsifier, 0.4 part of thickener and 3 parts of emollient; and C, component C: 0.6 part of antioxidant and 6 parts of emollient; and (D) component: 0.1 part of skin conditioner and 0.06 part of fragrance regulator.

The humectant is a combination of glycerol, 1, 2-pentanediol, betaine and sodium hyaluronate, wherein the mass ratio of the glycerol to the 1, 2-pentanediol to the betaine to the sodium hyaluronate is 3: 3: 1: 0.05; the sodium hyaluronate was purchased from Shandong Furuida under the trademark Freda low molecular HA (20-40 ten thousand molecular weight).

The plant extract is a combination of shea butter, grape seed oil, avocado oil, cactus seed oil and evening primrose oil, wherein the mass ratio of shea butter, grape seed oil, avocado oil, cactus seed oil and evening primrose oil is 2: 1: 1: 1: 1.

The INCI name of the avocado oil is avocado (PERSEA GRATISSIMA) oil.

The INCI name of the grape seed oil is grape (VITIS VINIFERA) seed oil.

The INCI name of the cactus seed oil is cactus (Opuntia DILLENII) seed oil.

The emulsifier is polyglycerol-10 stearate and cetearyl alcohol, wherein the mass ratio of the polyglycerol-10 stearate to the cetearyl alcohol is 2: 1.

the emulsifier further comprises polyglycerol-6 tristearate.

The mass ratio of the polyglycerol-6 tristearate to the polyglycerol-10 stearate is 1: 0.6.

the auxiliary emulsifier is fatty alcohol compound.

The fatty alcohol compound is glycerol behenate.

The thickening agent is hydroxypropyl guar gum.

The emollient is squalane.

The antioxidant is natural tocopherol.

The emollient is a combination of hydrogenated lecithin, coco-caprylate/caprate and VEGELIGHT1214LC, and the mass ratio of the hydrogenated lecithin, the coco-caprylate/caprate and the VEGELIGHT1214LC is 0.5: 3: 3.

the VEGELIGHT1214LC is commercially available, VEGELIGHT1214LC product includes C9-12 alkane and coco-caprylate/caprate.

The skin conditioner is glucosyl rutin.

The fragrance regulator is rose oil.

The preparation method of the face cream comprises the following steps:

(1) mixing the humectant in the component A with water, and stirring to 75 ℃ to obtain a mixed solution 1;

(2) mixing the plant extract, the emulsifier, the co-emulsifier, the thickener and the emollient in the component B, and stirring to 75 ℃ to obtain a mixed solution 2;

(3) mixing the antioxidant and the emollient in the component C, adding the mixture into the mixed solution 2, and stirring at 75 ℃ to obtain a mixed solution 3;

(5) and (3) when the temperature of the mixed solution 4 is reduced to 45 ℃, adding the skin conditioner and the flavor regulator in the component D into the mixed solution 4, and homogenizing under vacuum for 20min to obtain the skin conditioner and the flavor regulator.

Example 2

The provided face cream comprises the following raw materials in parts by weight: 55 parts of water and 10 parts of humectant; and B component: 3 parts of plant extract, 2 parts of emulsifier, 1 part of co-emulsifier, 0.1 part of thickener and 2.3 parts of emollient; and C, component C: 0.2 part of antioxidant and 3 parts of emollient; and (D) component: 0.05 part of skin conditioner and 0.01 part of fragrance regulator.

The INCI name of the avocado oil is avocado (PERSEA GRATISSIMA) oil.

The INCI name of the grape seed oil is grape (VITIS VINIFERA) seed oil.

The INCI name of the cactus seed oil is cactus (Opuntia DILLENII) seed oil.

the emulsifier further comprises polyglycerol-6 tristearate.

the auxiliary emulsifier is fatty alcohol compound.

The fatty alcohol compound is glycerol behenate.

The thickening agent is hydroxypropyl guar gum.

The emollient is squalane.

The antioxidant is natural tocopherol.

The skin conditioner is glucosyl rutin.

The fragrance regulator is rose oil.

The preparation method of the face cream comprises the following steps:

Example 3

The provided face cream comprises the following raw materials in parts by weight: 70 parts of water and 25 parts of humectant; and B component: 10 parts of plant extract, 6 parts of emulsifier, 3 parts of co-emulsifier, 0.9 part of thickener and 4.2 parts of emollient; and C, component C: 1 part of antioxidant and 10 parts of emollient; and (D) component: 0.2 part of skin conditioning agent and 0.14 part of fragrance regulator.

The INCI name of the avocado oil is avocado (PERSEA GRATISSIMA) oil.

The INCI name of the grape seed oil is grape (VITIS VINIFERA) seed oil.

The INCI name of the cactus seed oil is cactus (Opuntia DILLENII) seed oil.

the emulsifier further comprises polyglycerol-6 tristearate.

the auxiliary emulsifier is fatty alcohol compound.

The fatty alcohol compound is glycerol behenate.

The thickening agent is hydroxypropyl guar gum.

The emollient is squalane.

The antioxidant is natural tocopherol.

The skin conditioner is glucosyl rutin.

The fragrance regulator is rose oil.

The preparation method of the face cream comprises the following steps:

Example 4

Similar to example 1, except that no glycerol-6 tristearate was included in the emulsifier.

Example 5

Similar to example 1, except that the co-emulsifier was dodecyl D-glucoside (CAS number 27836-64-2).

Example 6

Similar to example 1, except that the mass ratio of polyglycerol-6 tristearate to polyglycerol-10 stearate was 1: 2.

example 7

Similar to example 1, except that the mass ratio of polyglycerol-6 tristearate to polyglycerol-10 stearate was 1: 0.1.

example 8

Similar to example 1, except that the thickener was methylcellulose.

Example 9

Similar to example 1, except that the plant extract does not include shea butter.

Example 10

Similar to example 1, except that evening primrose is not included in the plant extract.

Example 11

Similar to example 1, except that grape seed oil was not included in the plant extract.

Example 12

Similar to example 1, except that avocado oil was not included in the plant extract.

Example 13

Similar to example 1, except that the plant extract did not include cactus seed oil.

Evaluation of Performance

1. And (3) stability testing:

sensory testing: visually observing the properties of the product to see whether the product is abnormal or not;

heat resistance test: putting the sample into an electric heating constant temperature incubator at the temperature of (40 +/-1) DEG C for 7 days, and observing whether phenomena such as thinning, discoloration, layering, hardness change and the like exist after the temperature is recovered to judge the heat resistance of the sample;

cold resistance test: putting the sample into a refrigerator at the temperature of-5 ℃ for 7 days, and observing whether phenomena such as thinning, color change, layering, hardness change and the like exist after the room temperature is recovered so as to judge the cold resistance of the sample;

and (3) centrifugal test: placing the sample in a centrifuge, testing for 30min at a rotating speed of 3000r/min, and observing the separation and layering conditions of the sample;

the stability results are shown in table 1.

TABLE 1 stability test results for the creams prepared in examples 1-8

	Sensory index	Thermal stability	Stability at Low temperature	Centrifugal stability
					Example 1	No abnormality	Stabilization	Stabilization	Stabilization
Example 2	No abnormality	Stabilization	Stabilization	Stabilization
					Example 3	No abnormality	Stabilization	Stabilization	Stabilization
Example 4	Abnormality (S)	Layering	A small amount of precipitate	Layering
					Example 5	Abnormality (S)	Layering	Precipitation of	Layering
Example 6	No abnormality	With a small amount of delamination	A small amount of precipitate	With a small amount of delamination
					Example 7	No abnormality	With a small amount of delamination	A small amount of precipitate	With a small amount of delamination
Example 8	No abnormality	Layering	Precipitation of	Layering

2. Evaluation of efficacy

And (3) testing the repairing efficacy: 180 out of 25 to 55 year old volunteers were randomly divided into 9 groups of 20 persons each using the creams prepared in example 1, examples 4-5, and examples 8-13, respectively.

The test method comprises the following steps: all volunteers are subjected to face cleaning treatment before sleeping every night, after basic skin care, face cream is smeared, the trial period is 7 days, and skin feeling evaluation is carried out on the 8 th day, and the evaluation contents comprise: texture, smell, comfort and repair effect, the satisfaction population is calculated as a percentage. The evaluation results are shown in Table 2.

FIG. 1 is a comparison graph of the effect of the cream prepared in example 1 before and after 7 days, and it can be seen from the comparison graph that the facial skin becomes more moist and bright after the cream is used, and the repairing effect on the damaged skin is obvious.

TABLE 2 cream repair efficacy test results

The foregoing examples are merely illustrative and serve to explain some of the features of the method of the present invention. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. Also, where numerical ranges are used in the claims, subranges therein are included, and variations in these ranges are also to be construed as possible being covered by the appended claims.

Claims

1. The face cream is characterized by comprising the following raw materials in parts by weight: the component A comprises: 55-70 parts of water and 10-25 parts of humectant; and B component: 3-10 parts of plant extract, 2-6 parts of emulsifier, 1-3 parts of co-emulsifier, 0.1-0.9 part of thickener and 2.3-4.2 parts of emollient; and C, component C: 0.2-1 part of antioxidant and 3-10 parts of emollient; and (D) component: 0.05-0.2 part of skin conditioner and 0.01-0.14 part of fragrance regulator.

2. The cream of claim 1, wherein the moisturizer is selected from one or more of glycerin, propylene glycol, 1, 2-pentanediol, 1, 3-butanediol, betaine, oat glucan, allantoin, ceramide, caprylyl glycol, sodium hyaluronate.

3. The cream according to claim 1, wherein the plant extract is selected from one or more of jojoba oil, nut oil, shea butter, camellia oil, shea butter, grape seed oil, avocado oil, cactus seed oil, evening primrose oil, olive oil, and hazelnut oil.

4. The cream according to claim 1 or 3, wherein the plant extract is a combination of shea butter, grape seed oil, avocado oil, cactus seed oil and evening primrose oil, wherein the mass ratio of shea butter, grape seed oil, avocado oil, cactus seed oil and evening primrose oil is (1-4): (0.5-1.5): (0.8-1.9): (0.5-1.5): (0.6-1.8).

5. The cream according to claim 1, characterized in that said emulsifier is polyglyceryl stearate and/or cetearyl alcohol.

6. The cream according to claim 5, wherein the degree of polymerization of the polyglycerol stearate is 6 to 10.

7. The cream of claim 1, wherein the co-emulsifier is a fatty alcohol compound.

8. The cream of claim 7, wherein the fatty alcohol compound has a carbon chain length of C16-22.

9. The cream of claim 1, wherein the thickener is selected from one or more of pectin, gelatin, soluble starch, carboxymethyl cellulose, methyl cellulose, collagen, polysaccharides, and hydroxypropyl guar gum.

10. A method for preparing a cream according to any one of claims 1 to 9, characterized in that it comprises at least the following steps: