Whitening and freckle-removing cosmetic containing lavender extract and preparation method of whitening and freckle-removing cosmetic

Abstract

The invention discloses a whitening and freckle-removing cosmetic containing a lavender extract and a preparation method of the whitening and freckle-removing cosmetic, and belongs to the technical field of cosmetics. The composition mainly comprises 5-20% of a lavender extract; the water-phase matrix accounts for 70%-90% of the total weight, and the water-phase matrix comprises pure water and other hydrophilic components; the oil phase matrix accounts for 5%-15% of the total weight and comprises vegetable oil, mineral oil or synthetic oil and 0.5%-3% of a stabilizer; 0.1%-1% of a preservative; 0.5%-5% of a humectant; according to the whitening and freckle-removing mask, antioxidant ingredients such as phospholipid, tannin and flavonoids contained in the lavender extract are utilized to cooperate with other active ingredients such as the licorice extract, arbutin, vitamin C and derivatives thereof, tyrosinase activity is effectively inhibited, melanin generation is reduced, and therefore the whitening and freckle-removing effects are achieved, and the requirements of consumers for whitening, freckle-removing and skin care are met.

Description

Technical Field

[0001] The present application relates to the technical field of cosmetics, and more specifically, to a whitening and anti-freckle cosmetic containing lavender extract and a preparation method thereof. Background Art

[0002] As people pay more and more attention to skin health and beauty, the market demand for whitening and anti-freckle cosmetics continues to increase. Traditional whitening ingredients such as hydroquinone, fruit acid and vitamin C are widely used in cosmetics, but these ingredients may cause skin irritation, redness and swelling and other discomfort during use, and some ingredients have limited effects and pose certain safety risks. In addition, due to factors such as environmental pollution, ultraviolet radiation and life pressure, skin spots, dullness and other problems are becoming more and more common.

[0003] In this context, natural plant extracts have gradually become the focus of cosmetic research and development due to their low side effects and good biocompatibility. Among them, lavender has attracted attention due to its unique aroma and multiple medicinal values. Lavender extract not only has anti-inflammatory, soothing, and antibacterial effects, but studies have also shown its potential in whitening and freckle removal. Through its rich content of polyphenols and flavonoids, lavender extract may be able to effectively inhibit the production of melanin and improve skin texture.

[0004] However, there is still a lack of whitening and freckle-removing products with lavender extract as the main ingredient in the market. Based on the unique advantages of lavender extract, there is still a lot of room for development in the market. Consumers are increasingly inclined to choose skin care products with natural ingredients, which provides an opportunity for the research and development of new whitening and freckle-removing products.

[0005] Therefore, it is necessary to provide a whitening and freckle-removing cosmetic containing lavender extract and a preparation method thereof to solve the above problems.

[0006] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0007] Based on the above problems existing in the prior art, the problem to be solved by the present application is: to provide a whitening and anti-freckle cosmetic containing lavender extract and a preparation method thereof, so as to solve the problem of lack of whitening and anti-freckle products with lavender extract as the main ingredient.

[0008] The technical solution adopted by this application to solve its technical problem is:

[0009] A whitening and freckle-removing cosmetic containing lavender extract and a preparation method thereof, wherein the cosmetic component comprises 5% to 20% of lavender extract by weight;

[0010] The aqueous phase matrix accounts for 70%-90% of the total weight, and the aqueous phase matrix includes pure water and other hydrophilic components;

[0011] The oil phase matrix accounts for 5% to 15% of the total weight, and the oil phase matrix includes vegetable oil, mineral oil or synthetic oil;

[0012] Stabilizer 0.5%-3%;

[0013] Preservatives 0.1%-1%;

[0014] Moisturizer 0.5%-5%;

[0015] Other active ingredients 0%-10%.

[0016] Preferably, the lavender extract is a lavender flower extract obtained by steam distillation.

[0017] Preferably, the whitening and anti-freckle cosmetic is prepared in the form of emulsion, cream or essence.

[0018] Preferably, the other active ingredients are one or more of licorice extract, arbutin, vitamin C and its derivatives.

[0019] Preferably, the stabilizer is any one of polysorbate, xanthan gum or glyceride.

[0020] Preferably, the lavender extract comprises phospholipids, tannins, fl avonoids and other antioxidant components.

[0021] Preferably, the pH value of the whitening and anti-freckle cosmetic is between 4.5 and 6.5.

[0022] Preferably, the preservative is a natural preservative, which includes rosemary extract or a synthetic preservative.

[0023] Preferably, the moisturizing agent includes any one of hyaluronic acid and glycerin.

[0024] A method for preparing a whitening and freckle-removing cosmetic comprises the following steps:

[0025] S1, heating the water phase matrix and the oil phase matrix to 60°C;

[0026] S2, mixing the lavender extract with other active ingredients to form an active ingredient mixture;

[0027] S3, mixing the aqueous phase components with an emulsifier to form an aqueous phase emulsion;

[0028] S4, mixing the oil phase ingredients with the moisturizer to form an oil phase emulsion:

[0029] S5. Mix the aqueous phase emulsion and the oil phase emulsion, stir evenly to form an emulsion. During the stirring process, gradually add the preservative to ensure uniform dispersion.

[0030] S6. After cooling to room temperature, add stabilizer and continue stirring until uniform.

[0031] The beneficial effects of this application are:

[0032] 1. The antioxidant ingredients such as phospholipids, tannins, fl avonoids contained in lavender extract are used in conjunction with other active ingredients such as licorice extract, arbutin, vitamin C and its derivatives to effectively inhibit tyrosinase activity and reduce melanin production, thereby achieving whitening and freckle removal effects and meeting consumers' needs for whitening and freckle removal skin care.

[0033] 2. The product uses natural ingredients such as lavender extract, rosemary extract, etc., as well as synthetic ingredients that meet safety standards. It conforms to consumers' preference for natural skin care products, provides consumers with safer, gentler and more effective skin care options, enhances the competitiveness and attractiveness of the product in the market, and has good market application prospects and economic value.

[0034] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0036] In the attached picture:

[0037] Figure 1 The present invention is a flow chart of the preparation of a whitening and anti-freckle cosmetic containing lavender extract in the present application. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application.

[0040] like Figure 1 As shown, the embodiments provided by the present invention are:

[0041] A whitening and anti-freckle cosmetic containing lavender extract and a preparation method thereof, wherein the cosmetic component comprises 5%-20% lavender extract by weight, wherein the lavender extract is a lavender flower extract obtained by steam distillation, and the lavender extract comprises phospholipids, tannins, fl avonoids and other antioxidant components;

[0042] During the extraction process, parameters such as distillation temperature, pressure and time are strictly controlled to ensure the content and activity of the active ingredients in the extract. For example, the distillation temperature is controlled at 100-110°C, the pressure is maintained at 0.2MPa, and the distillation time is 3 hours, thereby obtaining a lavender flower extract with a higher content of active ingredients.

[0043] The aqueous matrix accounts for 70%-90% of the total weight. The aqueous matrix includes pure water and other hydrophilic components. Purified water is treated by multi-stage filtration and reverse osmosis to remove impurities, microorganisms and heavy metal ions in the water to ensure the safety and stability of cosmetics. The conductivity of purified water should be lower than 10μS / cm and the pH value should be between 6.0-7.5. Other hydrophilic components can be added with some sodium hyaluronate, which has good moisturizing properties and can increase the moisture content of the skin to keep the skin hydrated.

[0044] The oil phase matrix accounts for 5%-15% of the total weight. The oil phase matrix includes vegetable oil, mineral oil or synthetic oil. Vegetable oil: natural vegetable oils such as olive oil, grape seed oil or sweet almond oil are selected. These vegetable oils are rich in nutrients such as unsaturated fatty acids and vitamin E, and have good moisturizing and antioxidant properties. Taking olive oil as an example, it has the function of moisturizing the skin and regulating the oil secretion of the skin, which helps to improve dry and rough skin problems. The acid value of olive oil should be lower than 0.8mg KOH / g, and the peroxide value should be lower than 10meq / kg. Its proportion in the oil phase matrix can be adjusted according to the moisturizing requirements of the product;

[0045] Mineral oil: such as liquid paraffin, has good sealing properties and can form a protective film on the skin surface to reduce skin moisture loss. Choose cosmetic grade liquid paraffin, which has high purity and low impurity content.

[0046] Synthetic oil: such as squalane, which has low polarity, high stability and good air permeability, good affinity with the skin, and can give cosmetics a light texture. The purity of squalane should be no less than 99%.

[0047] Stabilizer 0.5%-3%, the stabilizer is any one of polysorbate, xanthan gum or glyceride, polysorbate-80 is selected, it is a commonly used non-ionic surfactant, has good emulsification and stabilization properties, can make the oil and water phases in cosmetics evenly mixed and maintain stability. The hydroxyl value of polysorbate-80 is 65-80mgKOH / g, and the acid value does not exceed 2mgKOH / g;

[0048] The preservative is 0.1%-1%, and the preservative is a natural preservative, and the natural preservative includes rosemary extract or a synthetic preservative. A composite of natural preservative rosemary extract and synthetic preservative phenoxyethanol is used. Rosemary extract has natural antibacterial and antioxidant properties, can effectively inhibit the growth and reproduction of microorganisms, and meets consumers' demand for natural ingredient cosmetics. Phenoxyethanol has a broad-spectrum antibacterial property. The combination of the two can enhance the effect of the preservative and reduce the use of a single preservative.

[0049] The active ingredient content of rosemary extract should not be less than 5%, and the purity of phenoxyethanol should not be less than 99%. The amount of preservatives added to cosmetics is 0.1%-1%, and the mass ratio of rosemary extract to phenoxyethanol can be adjusted according to actual conditions, such as 1:1-1:3;

[0050] 0.5%-5% moisturizer, the moisturizer includes any one of hyaluronic acid and glycerin. Hyaluronic acid is selected as the main moisturizer, which can absorb and lock a large amount of water to keep the skin moist and elastic. The molecular weight of hyaluronic acid can be selected according to the needs of the product. For example, low molecular weight hyaluronic acid can better penetrate into the deep layer of the skin, while high molecular weight hyaluronic acid forms a moisturizing film on the skin surface;

[0051] Other active ingredients 0%-10%, the other active ingredients are one or more of licorice extract, arbutin, vitamin C and its derivatives. Licorice extract has anti-inflammatory, antioxidant and whitening effects, can inhibit the activity of tyrosinase, and reduce the production of melanin. The glycyrrhizic acid content of licorice extract should not be less than 20%. Arbutin is an effective whitening ingredient that can inhibit the synthesis of melanin and lighten spots. The purity of arbutin should not be less than 98%. Vitamin C and its derivatives, such as sodium ascorbyl phosphate, have antioxidant and whitening effects, can promote the synthesis of collagen and improve skin texture. The content of sodium ascorbyl phosphate should not be less than 95%, and its addition amount can account for 0.1%-2% of the total weight of the cosmetics. These other active ingredients can be used alone or in combination according to the whitening and freckle removal effect requirements of the product, and the total addition amount is 0%-10% of the total weight of the cosmetics.

[0052] The whitening and anti-freckle cosmetic is prepared in the form of emulsion, cream or essence, the pH value of the whitening and anti-freckle cosmetic is between 4.5 and 6.5, and the specific preparation method is as follows:.

[0053] A method for preparing a whitening and freckle-removing cosmetic comprises the following steps:

[0054] S1. Pretreatment of water phase matrix and oil phase matrix: add accurately weighed pure water and other hydrophilic components into the water phase pot, turn on the stirring device, stir evenly at a speed of 300 rpm, and then slowly heat to 60°C. During the heating process, continuously monitor the temperature change to ensure that the temperature is stable at around 60°C to avoid excessively high or low temperature affecting the subsequent emulsification effect.

[0055] Add vegetable oil, mineral oil or synthetic oil and other oil-soluble ingredients into the oil phase pot, turn on the stirring device, stir evenly at 300 rpm, and heat to 60°C. During the heating process, pay attention to the uniformity of the oil phase to prevent local overheating from causing decomposition or deterioration of the ingredients;

[0056] S2. Active ingredient mixing: At room temperature, accurately weigh lavender extract, licorice extract, arbutin, vitamin C and its derivatives and other active ingredients according to the formula ratio, and add them into a clean stainless steel container. Use a high-speed disperser to stir at 1000rpm for 10-15 minutes to ensure that the various active ingredients are fully mixed and evenly mixed to form an active ingredient mixture. During the stirring process, the temperature of the container can be properly controlled to avoid inactivation of active ingredients due to frictional heat. For example, the container temperature can be controlled between 25-30°C through water bath circulation;

[0057] Preparation of aqueous emulsion and oil phase emulsion:

[0058] S3. Slowly add the emulsifier, such as part of polysorbate 80, into the water phase pot preheated to 60°C, and continue stirring at 500 rpm for 10-15 minutes to fully dissolve the emulsifier and evenly disperse it in the water phase to form an aqueous emulsion. When adding the emulsifier, add it slowly and dropwise to prevent the emulsifier from agglomerating or forming a local high concentration area, which will affect the emulsification effect;

[0059] S4. Add moisturizer, such as hyaluronic acid, to the oil phase pot preheated to 60°C, and stir at 500 rpm for 5-10 minutes to evenly disperse the moisturizer in the oil phase to form an oil phase emulsion. During the stirring process, pay attention to the state of the oil phase to ensure that the moisturizer is completely dissolved and fully mixed with the oil phase matrix:

[0060] S5. Slowly pour the prepared water phase emulsion into the oil phase emulsion, and start the homogenizer at 4000 rpm for 5-10 minutes to fully mix and emulsify the oil and water phases. During the homogenization process, pay attention to controlling the speed and time of the homogenizer to avoid excessive homogenization that may lead to emulsion instability or stratification.

[0061] During the stirring process, gradually add the pre-mixed mixture of preservatives, rosemary extract and phenoxyethanol to the emulsion and continue stirring at 350 rpm for 10-15 minutes to ensure that the preservatives are evenly dispersed in the emulsion. When adding the preservatives, add slowly and continuously monitor the uniformity and stability of the emulsion.

[0062] S6. Cool the emulsion to room temperature, about 25°C, then add the remaining stabilizer, polysorbate 80, and continue stirring at 250rpm for 20-30 minutes until the stabilizer is completely dissolved and evenly dispersed in the emulsion to obtain the final whitening and anti-freckle cosmetic product containing lavender extract. During the stirring process, appropriate sampling can be taken to test the pH value, viscosity, stability and other indicators of the emulsion to ensure that the product meets the quality standards.

[0063] For example, the pH value of the emulsion should be between 4.5-6.5 when tested with a pH meter, and the viscosity of the emulsion should be between 200-500 mPa·s when tested with a viscometer. The centrifugal test (3000 rpm, 30 minutes) is used to observe whether the emulsion is stratified. If stratification occurs, the formula or process parameters need to be further adjusted.

[0064] Through the above detailed specific implementation methods, a whitening and anti-freckle cosmetic containing lavender extract that meets the requirements of the claims can be prepared. The cosmetic has been strictly designed and controlled in terms of raw material selection, preparation process, quality control, packaging and storage, and has good whitening and freckle-removing efficacy, stability and safety, and can meet consumers' needs for whitening and freckle-removing cosmetics.

[0065] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A whitening and anti-freckle cosmetic containing lavender extract and a preparation method thereof, characterized in that: The cosmetic composition includes 5% to 20% of lavender extract by weight; The aqueous phase matrix accounts for 70%-90% of the total weight, and the aqueous phase matrix includes pure water and other hydrophilic components; The oil phase matrix accounts for 5% to 15% of the total weight, and the oil phase matrix includes vegetable oil, mineral oil or synthetic oil; Stabilizer 0.5%-3%; Preservatives 0.1%-1%; Moisturizer 0.5%-5%; Other active ingredients 0%-10%.

2. The whitening and anti-freckle cosmetic containing lavender extract according to claim 1 and its preparation method, characterized in that: The lavender extract is a lavender flower extract obtained by steam distillation.

3. The whitening and anti-freckle cosmetic containing lavender extract according to claim 1 and its preparation method, characterized in that: The whitening and freckle-removing cosmetic is prepared in the form of emulsion, cream or essence.

4. The whitening and anti-freckle cosmetic containing lavender extract and the preparation method thereof according to claim 1, characterized in that: The other active ingredients are one or more of licorice extract, arbutin, vitamin C and its derivatives.

5. The whitening and anti-freckle cosmetic containing lavender extract and the preparation method thereof according to claim 1, characterized in that: The stabilizer is any one of polysorbate, xanthan gum or glyceride.

6. The whitening and anti-freckle cosmetic containing lavender extract and the preparation method thereof according to claim 1, characterized in that: The lavender extract includes phospholipids, tannins, flavonoids and other antioxidant components.

7. The whitening and anti-freckle cosmetic containing lavender extract and the preparation method thereof according to claim 1, characterized in that: The pH value of the whitening and freckle-removing cosmetic is between 4.5 and 6.

5.

8. The whitening and anti-freckle cosmetic containing lavender extract and the preparation method thereof according to claim 1, characterized in that: The preservative is a natural preservative including rosemary extract or a synthetic preservative.

9. The whitening and anti-freckle cosmetic containing lavender extract and the preparation method thereof according to claim 1, characterized in that: The moisturizing agent includes any one of hyaluronic acid and glycerin.

10. A method for preparing the whitening and anti-freckle cosmetic according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, heating the water phase matrix and the oil phase matrix to 60°C; S2, mixing the lavender extract with other active ingredients to form an active ingredient mixture; S3, mixing the aqueous phase components with an emulsifier to form an aqueous phase emulsion; S4, mixing the oil phase ingredients with the moisturizer to form an oil phase emulsion: S5. Mix the aqueous phase emulsion and the oil phase emulsion, stir evenly to form an emulsion. During the stirring process, gradually add the preservative to ensure uniform dispersion. S6. After cooling to room temperature, add stabilizer and continue stirring until uniform.

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