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Sun-screening agent free of emulsifying agent

A technology of sunscreen agent, octyl methoxycinnamate, applied in the field of cosmetics, can solve the problems of enhanced permeability of chemical substances, disordered skin barrier function, loss of low-molecular-weight hydrophilic components, etc., so as to improve psoriasis and enhance skin immune system. Function, the effect of providing UV resistance

Inactive Publication Date: 2013-02-20
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
  • Sun-screening agent free of emulsifying agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~5

[0029] Embodiment 1~5: formula is as table 1.

[0030] Table 1

[0031]

[0032]

[0033] Preparation method example 1-5: start stirring at room temperature; add solid material 3 to the mixture of items 1, 2, and 4, and stir until the solid is completely dissolved. Add materials 6-10, mix until uniform, then add material 5 to obtain a transparent water-like gel.

Embodiment 6

[0034] Embodiment 6: Use evaluation of sunscreen products

[0035] 1. Test samples

[0036] (1) The formulations of Examples 1 and 3 were used for product evaluation.

[0037] (2) The reference group used commercially available sunscreen products with comparable SPF.

[0038] 2. Test object

[0039] (1) User situation: as shown in Table 2.

[0040] (2) Divide 30 test subjects into two groups A and B randomly. Group A: use the formula product of Example 1 and commercially available sunscreen products on the left and right arms at the same time; Group B: use the formula product of Example 3 and commercially available sunscreen products on the left and right arms simultaneously.

[0041] Table 2

[0042]

[0043] 3. Results evaluation

[0044] (1) The sun protection index of the product prepared by the formula in Example 1 is SPF50; the sun protection index of the product prepared by the formula in Example 3 is SPF30;

[0045] (2) Skin feel evaluation (calculated as a p...

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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. Background technique [0002] Ultraviolet (UV) is invisible light, usually they are divided into three categories: UVA, UVB, UVC. [0003] The skin begins to change within a few hours after UV exposure. Epidermal keratinocytes rapidly divide and grow after a few days, making the outermost epidermis thicken to 4 times its original size. This thick epidermis will absorb part of the UV rays, thereby reducing further damage from UV rays skin cells. After 12 hours of sun exposure, the ultraviolet rays will dilate the capillaries, resulting in the destruction of vascular fibers and erythema. Fibroblasts are the main cells that make up the skin. Edema after erythema directly affects fibroblasts. Long-term impact 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 ...

Claims

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Application Information

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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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