Sunscreen repairing day cream and preparation method thereof

A technology of sunscreen ingredients and preservatives, which can be used in skin care preparations, pharmaceutical formulas, and cosmetic preparations, etc. It can solve the problems that sunscreens and day creams cannot provide repairing capabilities, and achieve improved skin appearance, good application prospects, and reduced The effect of moisture loss

Inactive Publication Date: 2021-03-26
中国医科大学
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a simple sunscreen day cream cannot provide good repairing ability and can no longer meet the needs of consumers. Therefore, it is necessary to add effective repairing ingredients to the formula to improve the repairing ability of the day cream

Method used

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  • Sunscreen repairing day cream and preparation method thereof
  • Sunscreen repairing day cream and preparation method thereof
  • Sunscreen repairing day cream and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1 Prescription Screening.

[0029] In this embodiment, four kinds of prescriptions were prepared, and the specific components were calculated by weight percentage, and the balance was water. The composition is shown in Table 1 ("-" in the table indicates that the content of this component in this prescription is the same as that of prescription 1, and " / " indicates that this ingredient does not exist in this prescription.).

[0030] Table 1. Prescription dosage.

[0031]

[0032] The preparation methods of the above four sunscreen repairing day cream prescriptions are basically the same, including the following steps: (1) Put the oil phase components into an emulsification pot, mix and heat to 70-80°C, and stir at a constant temperature for 30 minutes. The oil phase components include most of the emulsifiers, sunscreen ingredients, and some thickeners. (2) At the same time, put the water phase components into another emulsification pot, mix and heat to 70-8...

Embodiment 2

[0033] Example 2 Day cream quality and effect evaluation.

[0034] 1. pH measurement.

[0035] Specific steps: (1) According to the instruction manual of the instrument, adjust the deionized water and the standard solution to the same temperature, record the measurement temperature, and select the standard solution whose pH value differs from the deionized water by no more than 2 pH units to calibrate the instrument. (2) Take out the electrode from the first standard solution, rinse it with deionized water, and gently blot dry with the edge of the filter paper, and immerse the electrode in the second standard solution, whose pH value is about 3 pH units different from the previous one. If the difference between the measured value and the pH value of the second standard solution is greater than 0.1pH, it is necessary to check whether there is a problem with the instrument, electrode or standard solution. The sample can only be measured when there is no abnormality in the three...

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PUM

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Abstract

The invention belongs to the field of cosmetics, and particularly relates to day cream containing a sunscreen component and a repairing component and a preparation method of the day cream. The sunscreen repairing day cream mainly comprises a moisturizer, a thickener, an emulsifier, an emollient, a preservative, the sunscreen component, the repairing component and water. The preparation method of the sunscreen repairing day cream comprises the following steps: adding an oil phase component into an emulsifying pot, performing mixing and heating to 70-80 DEG C, and carrying out stirring for 30 minutes at a constant temperature; adding a water-phase component into another emulsifying pot, performing mixing and heating to 70-80 DEG C, and carrying out stirring at a constant temperature until the components are completely dissolved or dispersed; under the condition of constant-temperature stirring, slowly adding the water phase into the oil phase, keeping the temperature at 70-80 DEG C, carrying out stirring for 15 minutes to fully emulsify the oil phase, stopping heating, and carrying out cooling under the condition of room-temperature stirring; and carrying out cooling to 35-40 DEG C,adding other components, uniformly stirring the components, cooling the mixture to below 30 DEG C, and conducting discharging after passing inspection. The sunscreen repairing day cream provided by the invention is good in skin protection and repairing capability, high in safety and fine and smooth in skin feeling, and the preparation method of the sunscreen repairing day cream is simple and has arelatively good application prospect.

Description

technical field [0001] The invention belongs to the field of cosmetics and relates to a skin care day cream, in particular to a day cream containing sunscreen ingredients and repairing ingredients and a preparation method thereof. Background technique [0002] Ultraviolet radiation in sunlight is the main environmental factor that causes skin aging and skin cancer. In order to prevent skin damage and skin diseases, sunscreen products are more and more widely used. However, traditional chemical sunscreens have problems such as low solubility, high irritation, poor photostability, greasy skin feel, and low UV absorption rate. Therefore, it is necessary to provide a sunscreen with good sunscreen performance, good photostability, and refreshing and non-greasy Frost. [0003] There are roughly three types of sunscreen ingredients in the formula system of sunscreen skin care products currently available on the market: purely physical sunscreen sunscreen ingredients, pure chemical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/27A61K8/29A61K8/34A61K8/37A61K8/42A61K8/44A61K8/49A61K8/58A61K8/73A61Q17/04A61Q19/00
CPCA61K8/4946A61K8/345A61K8/42A61K8/73A61K8/585A61K8/27A61K8/29A61K8/37A61K8/375A61K8/44A61K8/496A61Q19/00A61Q17/04
Inventor 余涧坤任昱曈
Owner 中国医科大学
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