CN108210386A - A kind of Moisturizer and preparation method thereof - Google Patents

Abstract

The invention relates to the technical field of cosmetics, in particular to a moisturizing skin care product and a preparation method thereof. The moisturizing skin care product is made of hemp seed extract, wheat germ oil, rice bran oil, medical vaseline, liquid paraffin, solid paraffin, emulsifier and preservative. Experiments have shown that the moisturizing skin care product provided by the invention has a significant moisturizing effect after the hemp seed extract, wheat germ oil, and rice bran oil are used in combination, and can increase the moisture content of the skin by 166.22% within 1 hour, and after 4 hours It can maintain the growth rate of skin moisture content by 118.92%.

Description

A kind of moisturizing skin care product and preparation method thereof

technical field

The invention relates to the technical field of cosmetics, in particular to a moisturizing skin care product and a preparation method thereof.

Background technique

The skin is mainly responsible for the functions of protecting the body, perspiration, feeling cold, heat and pressure, and is also the "facade" of the human body. The skin covers the whole body, and it protects various tissues and organs in the body from physical, mechanical, chemical and pathogenic microorganisms. The skin is affected by external natural environmental factors such as climate change, dust, strong light, and ultraviolet radiation, as well as human factors such as irregular personal diet, fatigue, excessive weight loss, and use of strong alkaline detergents. The effect of physiological laws such as body aging, resulting in dry, rough, dark, chapped, sagging, wrinkled and aging skin.

Nowadays, people who live in modern society with relatively rich material property, the pursuit of spiritual life has become an important content to improve the quality of life. In addition to having a healthy body, the quality of the skin is a very important factor affecting people's external image, and the quality of the skin Healthy, rosy, shiny, rich in elasticity, need natural and good skin care products for care and beauty.

Today's market has a wide variety of skin care products with moisturizing effects, mainly based on polyol moisturizing systems, mainly glycerin, propylene glycol, and butanediol used alone or in combination. However, the moisturizing effect of this kind of cosmetics is average, and it cannot moisturize for a long time. Therefore, further improving the moisturizing effect of cosmetics, and at the same time increasing the moisture content of the skin, hydrating the skin while providing long-lasting moisturizing, so that the product has a significant whitening and moisturizing effect, and is refreshing and moisturizing, is the focus of research in this field.

Contents of the invention

In view of this, the object of the present invention is to provide a moisturizing skin care product and a preparation method thereof. The moisturizing skin care product provided by the present invention has a good moisturizing effect, can increase skin moisture content, and reduce skin moisture loss.

In order to realize the purpose of the present invention, the present invention adopts following technical scheme:

The moisturizing skin care product provided by the invention is made of hemp seed extract, wheat germ oil, rice bran oil, medical vaseline, liquid paraffin, solid paraffin, emulsifier and preservative.

Hemp seed, also known as hemp seed, hemp seed, hemp seed, hemp seed, pock seed kernel, is the fruit of the Moraceae plant Cannabissativa L. or the seed kernel without the peel. It was first recorded in "Shen Nong's Herbal Classic" and listed as top grade. Its nature is sweet and flat, and it belongs to the spleen, stomach, and large intestine meridians, and has the effects of moistening dryness, smoothing intestines, dredging stranguria, and promoting blood circulation. It is clinically used to treat gastric cancer, blood deficiency and fluid loss, intestinal dryness and constipation, hot stranguria, wind arthralgia, dysentery, irregular menstruation, scabies, etc. Hemp seed can also be used in food and is a good raw material for health drinks. At present, hemp seed products have been used in the fields of health care, medicine, and beverages, but not in the field of cosmetics.

In the present invention, the hemp seed extract can be obtained commercially, and can also be prepared by the following extraction methods:

Choose plump and strong hemp seeds, remove impurities, grind them to 40 mesh to 60 mesh; weigh 10g to 20g of hemp seed powder, add 300ml to 600ml of ultrapure water (resistivity ≥ 18MΩ*cm), heat to boil and continuously Stir, and filter with medical gauze (4-6 layers) after 30 minutes, repeat the extraction 3-4 times, combine the filtrate, and concentrate the combined filtrate to 400ml-800ml to obtain the hemp seed extract.

In the present invention, the hemp seed extract is used in the field of cosmetics, and combined with wheat germ oil and rice bran oil, the prepared skin care product has a significant moisturizing effect, and at the same time satisfies consumers' desire for natural, green, safe, and natural cosmetics. Efficient demand.

Preferably, the moisturizing skin care product of the present invention is prepared from the following raw materials in parts by weight:

In some embodiments, the moisturizing skin care product of the present invention is prepared from the following raw materials in parts by weight:

In some embodiments, the moisturizing skin care product of the present invention is prepared from the following raw materials in parts by weight:

Preferably, the emulsifier is selected from one or both of sodium lauryl sulfate and OP emulsifier.

In some embodiments, the emulsifier is sodium lauryl sulfate and OP emulsifier.

In some embodiments, the emulsifier is composed of 0.5-5 parts of sodium lauryl sulfate and 0.25-5 parts of OP emulsifier in parts by weight.

Preferably, the preservative is methyl hydroxybenzoate.

The present invention also provides the preparation method of described moisturizing skin care product, comprises the following steps:

Step 1: Mix and stir the hemp seed extract, emulsifier and preservative to obtain the water phase;

Step 2: mixing and stirring wheat germ oil, rice bran oil, liquid paraffin, medical vaseline and solid paraffin to obtain an oil phase;

Step 3: mixing and stirring the water phase and the oil phase to obtain the moisturizing skin care product.

Preferably, in the step 1, the mixing speed is 100r/min-120r/min, the mixing temperature is 85°C-90°C, and the mixing time is 30min-50min.

In some embodiments, in the step 1, the mixing speed is 100 r/min, the mixing temperature is 85° C., and the mixing time is 30 min.

Preferably, in the step 2, the mixing speed is 100r/min-120r/min, the mixing temperature is 85°C-90°C, and the mixing time is 30min-50min.

In some embodiments, in the step 2, the mixing speed is 120 r/min, the mixing temperature is 90° C., and the mixing time is 40 min.

As a preference, in step 3, the mixing and stirring of the water phase and the oil phase is specifically: under the condition that the stirring speed is 100r/min-120r/min and the stirring temperature is 85°C-90°C, the oil phase is slowly finely flow into the aqueous phase.

As a preference, in step 3, the mixing and stirring of the water phase and the oil phase is specifically: under the condition that the stirring speed is 100r/min-120r/min and the stirring temperature is 85°C-90°C, the water phase is slowly finely flow into the oil phase.

In some embodiments, in step 3, the mixing and stirring of the water phase and the oil phase is specifically: adding the oil phase to the water phase in a slow trickle at a stirring speed of 120 r/min and a stirring temperature of 90°C middle.

The moisturizing skin care product provided by the invention is made of hemp seed extract, wheat germ oil, rice bran oil, medical vaseline, liquid paraffin, solid paraffin, emulsifier and preservative. The skin care product has remarkable moisturizing effect. Experiments show that the moisturizing skin care product provided by the invention can increase the moisture content of the skin by 166.22% within 1 hour, and can maintain the growth rate of the moisture content of the skin by 118.92% after 4 hours.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings that are required in the description of the embodiments or the prior art.

Figure 1 shows the effect of different experimental samples on the increase ratio of skin moisture content over time.

Detailed ways

The invention discloses a moisturizing skin care product and a preparation method thereof. Those skilled in the art can refer to the content of this article and appropriately improve the process parameters to realize it. In particular, it should be pointed out that all similar replacements and modifications are obvious to those skilled in the art, and they are all considered to be included in the present invention. The method and application of the present invention have been described through preferred embodiments, and the relevant personnel can obviously make changes or appropriate changes and combinations to the method and application described herein without departing from the content, spirit and scope of the present invention to realize and Apply the technology of the present invention.

The disclosed embodiments are described to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The test materials used in the present invention are all common commercially available products, which can be purchased in the market.

Below in conjunction with embodiment, further set forth the present invention:

The preparation of embodiment 1～3 moisturizing skin care products

The composition is shown in Table 1:

Table 1 Embodiment 1～3 prescription

Component Example 1 Example 2 Example 3 Hemp Seed Extract 75 copies 78 copies 80 copies Wheat germ oil 2 copies 1.5 servings 2 copies rice bran oil 3 copies 2 copies 2.5 servings Medical Vaseline 2 copies 2 copies 1.5 servings liquid paraffin 4 parts 3 copies 3 copies solid paraffin 2 copies 2 copies 1.5 servings OP emulsifier 5 copies 4.5 servings 4 parts Sodium dodecyl sulfate 5 copies 5 copies 4 parts methyl hydroxybenzoate 2 copies 2 copies 1.5 servings

The preparation method is:

Step 1: Mix and stir the hemp seed extract, OP emulsifier, sodium lauryl sulfate and methyl hydroxybenzoate, the stirring speed is 100r/min, the mixing and stirring temperature is 85°C, and the mixing and stirring time is 30min, the aqueous phase was obtained;

Step 2: Wheat germ oil, rice bran oil, liquid paraffin, medical vaseline and solid paraffin were mixed and stirred at a stirring speed of 120 r/min, the mixing temperature was 90° C., and the mixing time was 40 minutes to obtain an oil phase;

Step 3: Add the oil phase into the water phase in a slow trickle under the conditions of a stirring speed of 110 r/min and a stirring temperature of 85° C. to obtain a natural skin care product.

Comparative example 1～3

The composition is shown in Table 2:

Table 2 Comparative Examples 1-3 prescriptions

Embodiment 4 Moisturizing effect test test

The weighing method is adopted, that is, the sample containing a certain amount of water is dried in a desiccator, the weight of the sample is regularly weighed, and the water retention rate of the sample is determined (water retention rate = residual moisture mass/sample mass). The instruments used are desiccator, incubator, analytical balance and thermometer.

Test method: Put the moisturizing skin care products prepared in Examples 1 to 3 of the present invention and Comparative Examples 1 to 3 respectively with desiccant (silica gel) in a desiccator with the same conditions, wherein the temperature of the desiccator is 20°C, and every 1h Weigh the water loss of the sample, measure continuously for 5 hours, and calculate the water retention rate. The results are shown in Table 3.

Table 3 water retention test results (%)

The results show that the moisturizing performance of the moisturizing skin care product provided by the present invention is obviously better than that of the skin care products of Comparative Examples 1-3.

Embodiment 5 skin moisturizing effect test test

A total of 60 volunteers were selected who had no active allergic diseases and had no history of severe allergies to skin care cosmetics; those who had not used hormone drugs and immunosuppressants in the past month; those who had not participated in other clinical trials. Between the ages of 18 and 40, there were 30 males and 30 females. Subjects are required to refrain from using any products (cosmetics or external medicines) on the test site 2 to 3 days before the test.

(1) Comprehensive trial effect

Comprehensive trial results Select the subject's face, and the subject cleans his face before each use, and wipes it clean with a dry facial tissue. Follow up after 30 days of continuous probation of the product of the present invention, wherein, 21 cases have special effect, 33 cases are effective, 4 cases are markedly effective, 2 cases are invalid, and the total effective rate is 96.7%.

(2) Human skin moisture content (MMV) test

The test uses the capacitance method for testing. The principle is based on the significant difference in the dielectric constant of water and other substances. According to the difference in skin moisture content, the measured skin capacitance value is different, and the observed parameters can represent the skin moisture value. The requirements for the test site of the subjects are the same as those for the comprehensive trial effect test.

Test environment conditions: The test environment temperature is 22°C±2°C, the humidity is 50%±2%, and real-time dynamic monitoring is carried out.

Preparation before test: Dry and clean face with a dry facial tissue. After cleaning, mark the measurement area on the left and right faces of the subject. Before the official test, sit in a constant temperature and humidity laboratory at 22°C±2°C and humidity 50%±2% for 30 minutes, without drinking water, and keep the human body relaxed.

Test procedure: In the test, the left and right faces of the subjects were marked with a 2cm×2cm test area, and the interval between the areas was 1cm. Randomly distribute Examples 1-3 and Proportions 1-3 on the left and right faces. The measurement of the test area was carried out using a capacitive skin analyzer, and each area was measured 3 times in parallel, and the average value was taken. First measure the blank value (0h, no embodiment and comparative example) of each test area, and then use latex finger cots to evenly apply the skin care products of Examples 1 to 3 of the present invention and Comparative Examples 1 to 3 in the test area . After smearing, measure the skin moisture content of the test area at 1h, 2h, 3h, and 4h respectively. The tests on the same volunteer were done by the same surveyor.

The calculation formula is:

The formula for calculating the growth rate of skin moisture content is as follows:

Skin moisture content growth rate% = (MMV _t -MMV ₀ )/MMV ₀ ×100%

In the formula: MMV ₀ - skin MMV before application

MMV _t ——skin MMV at period t after application

The results are shown in Table 4.

Table 4 Skin MMV _t value measurement results (%) in the skin t period

As can be seen from Table 4, the moisturizing skin care product provided by the present invention has a scientific distribution ratio of each component. After 1 hour of use, the average growth rate of skin moisture content in Examples 1 to 3 reaches 166.22%, and the average growth rate of skin moisture content can be maintained at 118.9% in 4 hours. . Compared with Comparative Examples 1-3, the moisturizing skin care products provided by the present invention showed a significant improvement in increasing the water content (p<0.05), indicating that the compounding of various components in the moisturizing skin care products of the present invention has played a significant synergistic effect effect.

The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (10)

1. A moisturizing skin care product, characterized in that it is made of hemp seed extract, wheat germ oil, rice bran oil, medical vaseline, liquid paraffin, solid paraffin, emulsifier and preservative. 2. The moisturizing skin care product according to claim 1, wherein the moisturizing skin care product is prepared from the following raw materials in parts by weight: 3. The moisturizing skin care product according to claim 1 or 2, wherein the emulsifier is selected from one or both of sodium lauryl sulfate and OP emulsifiers. 4. moisturizing skin care product according to claim 3, is characterized in that, described emulsifier is sodium lauryl sulfate and OP emulsifier. 5. The moisturizing skin care product according to claim 1 or 2, wherein the preservative is a paraben. 6. The preparation method of the moisturizing skin care product according to any one of claims 1 to 5, characterized in that, comprising the following steps: Step 1: Mix and stir the hemp seed extract, emulsifier and preservative to obtain the water phase; Step 2: mixing and stirring wheat germ oil, rice bran oil, liquid paraffin, medical vaseline and solid paraffin to obtain an oil phase; Step 3: mixing and stirring the water phase and the oil phase to obtain the moisturizing skin care product. 7. The preparation method according to claim 6, characterized in that, in the step 1, the speed of mixing and stirring is 100r/min～120r/min, the temperature of mixing and stirring is 85°C～90°C, the time of mixing and stirring 30 minutes to 50 minutes. 8. The preparation method according to claim 6, characterized in that, in the step 2, the speed of mixing and stirring is 100r/min～120r/min, the temperature of mixing and stirring is 85°C～90°C, the time of mixing and stirring 30 minutes to 50 minutes. 9. The preparation method according to claim 6, characterized in that, in step 3, the mixing and stirring of the water phase and the oil phase is specifically: the stirring speed is 100r/min～120r/min, and the stirring temperature is 85 Under the condition of ℃～90℃, add the oil phase into the water phase in a slow trickle. 10. The preparation method according to claim 6, characterized in that in step 3, the mixing and stirring of the water phase and the oil phase is specifically: the stirring speed is 100r/min～120r/min, and the stirring temperature is 85 Under the condition of ℃～90℃, slowly add the water phase into the oil phase in a trickle.