Sun-screening agent free of emulsifying agent

A technology of sunscreen and weight percentage, applied in cosmetics, cosmetic preparations, preparations for skin care, etc., can solve the problems of disordered skin barrier function, enhanced penetration of chemical substances, loss of low-molecular-weight hydrophilic components, etc. Skin immune system function, psoriasis improvement, skin safety effect

Inactive Publication Date: 2014-05-28
广州安德健康科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This disrupts the skin barrier function, leading to increased chemical penetration and loss of low molecular weight hydrophilic components

Method used

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  • Sun-screening agent free of emulsifying agent
  • Sun-screening agent free of emulsifying agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5

[0026] Examples 1 to 5: The formula is shown in Table 1.

[0027] Table 1

[0028]

[0029] Preparation method example 1-5: start stirring at room temperature; add solid material 3 to the material mixture of items 1, 2, and 4, and stir until the solid is completely dissolved. Add 6-10 materials, mix until uniform, and add material 5 to obtain a transparent water-like gel.

Embodiment 6

[0030] Example 6: Evaluation of the use of sunscreen products

[0031] 1. Test sample

[0032] (1) The formulations of Examples 1 and 3 were used for product evaluation.

[0033] (2) The reference group uses commercially available sunscreen products, which have the same sun protection index.

[0034] 2. Test object

[0035] (1) User situation: as shown in Table 2.

[0036] (2) Randomly divide 30 test subjects into two groups A and B. Group A: Use the formula product of Example 1 and the commercially available sunscreen product on the left and right arms at the same time; Group B: Use the formula product of Example 3 and the commercially available sunscreen product on the left and right arms at the same time.

[0037] Table 2

[0038]

[0039] 3. Results evaluation

[0040] (1) The SPF of the product prepared by the formula of Example 1 is SPF50; the SPF of the product prepared by the formula of Example 3 is SPF30;

[0041] (2) Skin feel evaluation (calculated by percentage):

[0042] Formula...

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PUM

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Abstract

The invention discloses a sun-screening agent free of an emulsifying agent. The sun-screening agent is prepared by a new sun-screening formulation is as follows: a UV defense basic systemconsists of octocrilene, octyl p-methoxycinnamate, avobenzone, and homosalate consitituting, and is matched with inactive ingredients such as isododecane / polydimethyl siloxane / vinyl polydimethyl siloxane crosslink, grapefruit essence, benzyl alcohol, silica silylate, plukenetia volubilis seed oil and argania spinosa kernel oil according to proportion. The UV defense basic system is added into other cosmetic preparation carriers, and can provide ultraviolet energy resistance. The sun-screening agent has no added emulsifying agent, is low in skin irritation, not only can effectively block ultraviolet injury to skin, but also has a waterproof efficacy, and very good compatibility with foundation make-up and other face skin care products, is silky in tactile sensation, refreshing, not greasy, and natural in make-up sensation. SPF30-SPF50 sun-blocking products are more suitable for Asian people, and have a broad market prospect.

Description

Technical field [0001] The invention relates to the field of cosmetics, in particular to a sunscreen agent. Background technique [0002] Ultraviolet (UV) is invisible light, usually divided into three categories: UVA, UVB, UVC. [0003] The skin begins to change within a few hours after UV exposure, and the epidermal keratinocytes divide and grow rapidly after a few days, making the outermost epidermis thicker to 4 times the original thickness. This thick epidermis absorbs part of the ultraviolet rays, thereby reducing further UV damage Skin cells. After 12 hours of sun exposure, ultraviolet rays will expand the microtubes, causing vascular fibers to be destroyed and erythema. Fibroblasts are the most important cells of the skin. Edema after erythema directly affects fibroblasts. Long-term effects will cause permanent damage to collagen fibers and elastin fibers, that is, the dermis loses its elasticity and the epidermis forms wrinkles. In addition, 10% long wave and 5% medium ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K8/37A61K8/35A61K8/97A61Q17/04
Inventor 孙梓明蒋庆
Owner 广州安德健康科技有限公司
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